1921 U.S. National Championships – Men's singles
{{Use mdy dates|date=July 2023}}
{{Use American English|date=July 2023}}
{{GrandSlamEvents|1921|U.S. National Championships|
| champ = {{flagicon|USA}} Bill Tilden{{cite book|last=Collins|first=Bud|author-link=Bud Collins|title=The Bud Collins History of Tennis|year=2010|publisher=New Chapter Press|location=[New York City]|isbn=978-0942257700|edition=2nd|page=459}}
| runner = {{flagicon|USA}} Wallace Johnson
| score = 6–1, 6–3, 6–1
| draw = 108
| seeds = N.A.
}}
{{main|1921 U.S. National Championships (tennis)}}
Defending champion Bill Tilden defeated Wallace Johnson in the final, 6–1, 6–3, 6–1 to win the men's singles tennis title at the 1921 U.S. National Championships.{{cite book|last=Talbert|first=Bill|author-link=Bill Talbert|title=Tennis Observed – The USLTA Men's Singles Champions, 1881-1966|year=1967|oclc=172306|publisher=Barre Publishers|location=Barre|page=99}} It was Tilden's second U.S. Championships singles title and fourth major singles title overall. Tilden became the first male tennis player to win four consecutive major singles events.
The tournament began on September 9, weeks after the conclusion of the corresponding Women's singles event, and ended on 19th. For the first time, the men's tournament was held at the Germantown Cricket Club in Philadelphia instead of at Forest Hills.{{cite book|author1-link=Warren F. Kimball|author=Warren F. Kimball|title=The United States Tennis Association: Raising the Game|url=https://books.google.com/books?id=egk7DwAAQBAJ&pg=PT39|date=December 2017|publisher=U of Nebraska Press|isbn=978-1-4962-0462-2|pages=39}}
Draw
{{Draw key}}
=Final eight=
{{8TeamBracket|sets=5
|nowrap=y
| team-width=150
| RD3-team1={{flagicon|USA}} Wallace Johnson
| RD3-seed1=
| RD3-team2={{flagicon|USA}} Bill Tilden
| RD3-seed2=
| RD3-score1-1=1
| RD3-score2-1=6
| RD3-score1-2=3
| RD3-score2-2=6
| RD3-score1-3=1
| RD3-score2-3=6
| RD3-score1-4=
| RD3-score2-4=
| RD3-score1-5=
| RD3-score2-5=
| RD2-team1={{flagicon|USA}} Wallace Johnson
| RD2-seed1=
| RD2-team2={{flagicon|AUS}} James Anderson
| RD2-seed2=
| RD2-score1-1=6
| RD2-score2-1=4
| RD2-score1-2=3
| RD2-score2-2=6
| RD2-score1-3=8
| RD2-score2-3=6
| RD2-score1-4=6
| RD2-score2-4=3
| RD2-team3={{flagicon|USA}} Bill Tilden
| RD2-seed3=
| RD2-team4={{flagicon|USA}} Willis Davis
| RD2-seed4=
| RD2-score3-1=10
| RD2-score4-1=8
| RD2-score3-2=6
| RD2-score4-2=2
| RD2-score3-3=6
| RD2-score4-3=1
| RD1-team1={{flagicon|USA}} Craig Biddle
| RD1-seed1=
| RD1-team2={{flagicon|USA}} Wallace Johnson
| RD1-seed2=
| RD1-score1-1=0
| RD1-score2-1=6
| RD1-score1-2=3
| RD1-score2-2=6
| RD1-score1-3=4
| RD1-score2-3=6
| RD1-score1-4=
| RD1-score2-4=
| RD1-team3={{flagicon|USA}} Frank Hunter
| RD1-seed3=
| RD1-team4={{flagicon|AUS}} James Anderson
| RD1-seed4=
| RD1-score3-1=1
| RD1-score4-1=6
| RD1-score3-2=3
| RD1-score4-2=6
| RD1-score3-3=4
| RD1-score4-3=6
| RD1-team5={{flagicon|GBR}} Gordon Lowe
| RD1-seed5=
| RD1-team6={{flagicon|USA}} Bill Tilden
| RD1-seed6=
| RD1-score5-1=4
| RD1-score6-1=6
| RD1-score5-2=3
| RD1-score6-2=6
| RD1-score5-3=4
| RD1-score6-3=6
| RD1-score5-4=
| RD1-score6-4=
| RD1-team7={{flagicon|USA}} Willis Davis
| RD1-seed7=
| RD1-team8={{flagicon|USA}} Robert Kinsey
| RD1-seed8=
| RD1-score7-1=6
| RD1-score8-1=3
| RD1-score7-2=4
| RD1-score8-2=6
| RD1-score7-3=6
| RD1-score8-3=4
| RD1-score7-4=1
| RD1-score8-4=6
| RD1-score7-5=6
| RD1-score8-5=4
}}
=Earlier rounds=
==Section 1==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD4-team01={{flagicon|USA}} Biddle
| RD4-seed01=
| RD4-team02={{flagicon|USA}} Hammett
| RD4-seed02=
| RD4-score01-1=6
| RD4-score02-1=1
| RD4-score01-2=3
| RD4-score02-2=6
| RD4-score01-3=6
| RD4-score02-3=4
| RD4-score01-4=6
| RD4-score02-4=1
| RD4-score01-5=
| RD4-score02-5=
| RD3-team01={{flagicon|USA}} Parker
| RD3-seed01=
| RD3-team02={{flagicon|USA}} Biddle
| RD3-seed02=
| RD3-score01-1=6
| RD3-score02-1=4
| RD3-score01-2=4
| RD3-score02-2=6
| RD3-score01-3=1
| RD3-score02-3=6
| RD3-score01-4=3
| RD3-score02-4=6
| RD3-score01-5=
| RD3-score02-5=
| RD3-team03={{flagicon|USA}} Crawford
| RD3-seed03=
| RD3-team04={{flagicon|USA}} Hammett
| RD3-seed04=
| RD3-score03-1=3
| RD3-score04-1=6
| RD3-score03-2=6
| RD3-score04-2=3
| RD3-score03-3=2
| RD3-score04-3=6
| RD3-score03-4=4
| RD3-score04-4=6
| RD3-score03-5=
| RD3-score04-5=
| RD2-team01={{flagicon|USA}} Parker
| RD2-seed01=
| RD2-team02={{flagicon|USA}} Robinson
| RD2-seed02=
| RD2-score01-1=6
| RD2-score02-1=4
| RD2-score01-2=6
| RD2-score02-2=4
| RD2-score01-3=6
| RD2-score02-3=2
| RD2-score01-4=
| RD2-score02-4=
| RD2-team03={{flagicon|USA}} Biddle
| RD2-seed03=
| RD2-team04={{flagicon|USA}} Gilmore
| RD2-seed04=
| RD2-score03-1=6
| RD2-score04-1=2
| RD2-score03-2=6
| RD2-score04-2=1
| RD2-score03-3=6
| RD2-score04-3=1
| RD2-team05={{flagicon|USA}} Crawford
| RD2-seed05=
| RD2-team06={{flagicon|USA}} Pannock
| RD2-seed06=
| RD2-score05-1=10
| RD2-score06-1=8
| RD2-score05-2=6
| RD2-score06-2=3
| RD2-score05-3=6
| RD2-score06-3=4
| RD2-team07={{flagicon|USA}} Hammett
| RD2-seed07=
| RD2-team08={{flagicon|USA}} Golden
| RD2-seed08=
| RD2-score07-1=6
| RD2-score08-1=4
| RD2-score07-2=6
| RD2-score08-2=2
| RD2-score07-3=6
| RD2-score08-3=2
}}
==Section 2==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD4-team01={{flagicon|USA}} Kinsey
| RD4-seed01=
| RD4-team02={{flagicon|USA}} Johnson
| RD4-seed02=
| RD4-score01-1=6
| RD4-score02-1=4
| RD4-score01-2=6
| RD4-score02-2=8
| RD4-score01-3=2
| RD4-score02-3=6
| RD4-score01-4=1
| RD4-score02-4=6
| RD4-score01-5=
| RD4-score02-5=
| RD3-team01={{flagicon|USA}} Knight
| RD3-seed01=
| RD3-team02={{flagicon|USA}} Kinsey
| RD3-seed02=
| RD3-score01-1=2
| RD3-score02-1=6
| RD3-score01-2=3
| RD3-score02-2=6
| RD3-score01-3=8
| RD3-score02-3=10
| RD3-score01-4=
| RD3-score02-4=
| RD3-score01-5=
| RD3-score02-5=
| RD3-team03={{flagicon|USA}} Edwards
| RD3-seed03=
| RD3-team04={{flagicon|USA}} Johnson
| RD3-seed04=
| RD3-score03-1=0
| RD3-score04-1=6
| RD3-score03-2=1
| RD3-score04-2=6
| RD3-score03-3=2
| RD3-score04-3=6
| RD3-score03-4=
| RD3-score04-4=
| RD3-score03-5=
| RD3-score04-5=
| RD2-team01={{flagicon|USA}} Knight
| RD2-seed01=
| RD2-team02={{flagicon|USA}} Hathaway
| RD2-seed02=
| RD2-score01-1=6
| RD2-score02-1=4
| RD2-score01-2=6
| RD2-score02-2=2
| RD2-score01-3=6
| RD2-score02-3=1
| RD2-score01-4=
| RD2-score02-4=
| RD2-team03={{flagicon|USA}} Kinsey
| RD2-seed03=
| RD2-team04={{flagicon|USA}} Oelsner
| RD2-seed04=
| RD2-score03-1=6
| RD2-score04-1=2
| RD2-score03-2=6
| RD2-score04-2=4
| RD2-score03-3=6
| RD2-score04-3=4
| RD2-team05={{flagicon|USA}} Edwards
| RD2-seed05=
| RD2-team06={{flagicon|GBR}} Myers
| RD2-seed06=
| RD2-score05-1=4
| RD2-score06-1=6
| RD2-score05-2=6
| RD2-score06-2=4
| RD2-score05-3=6
| RD2-score06-3=4
| RD2-score05-4=4
| RD2-score06-4=6
| RD2-score05-5=6
| RD2-score06-5=4
| RD2-team07={{flagicon|USA}} Washburn
| RD2-seed07=
| RD2-team08={{flagicon|USA}} Johnson
| RD2-seed08=
| RD2-score07-1=3
| RD2-score08-1=6
| RD2-score07-2=7
| RD2-score08-2=5
| RD2-score07-3=6
| RD2-score08-3=2
| RD2-score07-4=3
| RD2-score08-4=6
| RD2-score07-5=3
| RD2-score08-5=6
| RD1-team05={{flagicon|USA}} Kinsey
| RD1-seed05=
| RD1-team06={{flagicon|USA}} Putnam
| RD1-seed06=
| RD1-score05-1=6
| RD1-score06-1=1
| RD1-score05-2=6
| RD1-score06-2=3
| RD1-score05-3=6
| RD1-score06-3=4
| RD1-score05-4=
| RD1-score06-4=
| RD1-team07={{flagicon|USA}} Oelsner
| RD1-seed07=
| RD1-team08={{flagicon|USA}} Stockton
| RD1-seed08=
| RD1-score07-1=4
| RD1-score08-1=6
| RD1-score07-2=6
| RD1-score08-2=4
| RD1-score07-3=9
| RD1-score08-3=7
| RD1-score07-4=6
| RD1-score08-4=0
| RD1-team09={{flagicon|USA}} Edwards
| RD1-seed09=
| RD1-team10={{flagicon|USA}} Vanneman
| RD1-seed10=
| RD1-score09-1=6
| RD1-score10-1=3
| RD1-score09-2=7
| RD1-score10-2=9
| RD1-score09-3=5
| RD1-score10-3=7
| RD1-score09-4=6
| RD1-score10-4=3
| RD1-score09-5=6
| RD1-score10-5=1
| RD1-team11={{flagicon|GBR}} Myers
| RD1-seed11=
| RD1-team12={{flagicon|USA}} Gibbons
| RD1-seed12=
| RD1-score11-1=2
| RD1-score12-1=6
| RD1-score11-2=6
| RD1-score12-2=0
| RD1-score11-3=6
| RD1-score12-3=1
| RD1-score11-4=3
| RD1-score12-4=6
| RD1-score11-5=8
| RD1-score12-5=7r
| RD1-team13={{flagicon|USA}} Washburn
| RD1-seed13=
| RD1-team14={{flagicon|USA}} Thayer
| RD1-seed14=
| RD1-score13-1=6
| RD1-score14-1=0
| RD1-score13-2=6
| RD1-score14-2=2
| RD1-score13-3=6
| RD1-score14-3=2
| RD1-team15={{flagicon|USA}} Johnson
| RD1-seed15=
| RD1-team16={{flagicon|USA}} Mercur
| RD1-seed16=
| RD1-score15-1=6
| RD1-score16-1=1
| RD1-score15-2=6
| RD1-score16-2=3
| RD1-score15-3=6
| RD1-score16-3=4
}}
==Section 3==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD4-team01={{flagicon|USA}} Hunter
| RD4-seed01=
| RD4-team02={{flagicon|USA}} Anderson
| RD4-seed02=
| RD4-score01-1=6
| RD4-score02-1=3
| RD4-score01-2=6
| RD4-score02-2=3
| RD4-score01-3=6
| RD4-score02-3=1
| RD4-score01-4=
| RD4-score02-4=
| RD4-score01-5=
| RD4-score02-5=
| RD3-team01={{flagicon|USA}} Fischer
| RD3-seed01=
| RD3-team02={{flagicon|USA}} Hunter
| RD3-seed02=
| RD3-score01-1=6
| RD3-score02-1=4
| RD3-score01-2=6
| RD3-score02-2=1
| RD3-score01-3=4
| RD3-score02-3=6
| RD3-score01-4=3
| RD3-score02-4=6
| RD3-score01-5=0
| RD3-score02-5=6
| RD3-team03={{flagicon|USA}} King
| RD3-seed03=
| RD3-team04={{flagicon|USA}} Anderson
| RD3-seed04=
| RD3-score03-1=2
| RD3-score04-1=6
| RD3-score03-2=3
| RD3-score04-2=6
| RD3-score03-3=10
| RD3-score04-3=12
| RD3-score03-4=
| RD3-score04-4=
| RD3-score03-5=
| RD3-score04-5=
| RD2-team01={{flagicon|USA}} Dionne
| RD2-seed01=
| RD2-team02={{flagicon|USA}} Fischer
| RD2-seed02=
| RD2-score01-1=3
| RD2-score02-1=6
| RD2-score01-2=1
| RD2-score02-2=6
| RD2-score01-3=1
| RD2-score02-3=6
| RD2-score01-4=
| RD2-score02-4=
| RD2-team03={{flagicon|USA}} Hunter
| RD2-seed03=
| RD2-team04={{flagicon|USA}} Bernstein
| RD2-seed04=
| RD2-score03-1=6
| RD2-score04-1=2
| RD2-score03-2=6
| RD2-score04-2=3
| RD2-score03-3=6
| RD2-score04-3=3
| RD2-team05={{flagicon|USA}} Baggs
| RD2-seed05=
| RD2-team06={{flagicon|USA}} King
| RD2-seed06=
| RD2-score05-1=1
| RD2-score06-1=6
| RD2-score05-2=2
| RD2-score06-2=6
| RD2-score05-3=0
| RD2-score06-3=6
| RD2-score05-4=
| RD2-score06-4=
| RD2-score05-5=
| RD2-score06-5=
| RD2-team07={{flagicon|USA}} Jones
| RD2-seed07=
| RD2-team08={{flagicon|USA}} Anderson
| RD2-seed08=
| RD2-score07-1=2
| RD2-score08-1=6
| RD2-score07-2=2
| RD2-score08-2=6
| RD2-score07-3=1
| RD2-score08-3=6
| RD2-score07-4=
| RD2-score08-4=
| RD2-score07-5=
| RD2-score08-5=
| RD1-team01={{flagicon|USA}} Dionne
| RD1-seed01=
| RD1-team02={{flagicon|USA}} Evans
| RD1-seed02=
| RD1-score01-1=7
| RD1-score02-1=5
| RD1-score01-2=7
| RD1-score02-2=5
| RD1-score01-3=10
| RD1-score02-3=8
| RD1-team03={{flagicon|USA}} Fischer
| RD1-seed03=
| RD1-team04={{flagicon|JPN}} Kashio
| RD1-seed04=
| RD1-score03-1=
| RD1-score04-1=w/
| RD1-score03-2=
| RD1-score04-2=o
| RD1-score03-3=
| RD1-score04-3=
| RD1-team05={{flagicon|USA}} Hunter
| RD1-seed05=
| RD1-team06={{flagicon|USA}} Anderson
| RD1-seed06=
| RD1-score05-1=6
| RD1-score06-1=3
| RD1-score05-2=5
| RD1-score06-2=7
| RD1-score05-3=6
| RD1-score06-3=3
| RD1-score05-4=3
| RD1-score06-4=6
| RD1-score05-5=6
| RD1-score06-5=3
| RD1-team07={{flagicon|USA}} Bernstein
| RD1-seed07=
| RD1-team08={{flagicon|USA}} Larned
| RD1-seed08=
| RD1-score07-1=
| RD1-score08-1=w/
| RD1-score07-2=
| RD1-score08-2=o
| RD1-score07-3=
| RD1-score08-3=
| RD1-score07-4=
| RD1-score08-4=
| RD1-team09={{flagicon|USA}} Baggs
| RD1-seed09=
| RD1-team10={{flagicon|USA}} Garland
| RD1-seed10=
| RD1-score09-1=
| RD1-score10-1=w/
| RD1-score09-2=
| RD1-score10-2=o
| RD1-score09-3=
| RD1-score10-3=
| RD1-score09-4=
| RD1-score10-4=
| RD1-score09-5=
| RD1-score10-5=
| RD1-team11={{flagicon|USA}} King
| RD1-seed11=
| RD1-team12={{flagicon|USA}} Ewing
| RD1-seed12=
| RD1-score11-1=6
| RD1-score12-1=3
| RD1-score11-2=6
| RD1-score12-2=1
| RD1-score11-3=6
| RD1-score12-3=4
| RD1-score11-4=
| RD1-score12-4=
| RD1-score11-5=
| RD1-score12-5=
| RD1-team13={{flagicon|USA}} Jones
| RD1-seed13=
| RD1-team14={{flagicon|USA}} Sweet
| RD1-seed14=
| RD1-score13-1=6
| RD1-score14-1=0
| RD1-score13-2=6
| RD1-score14-2=1
| RD1-score13-3=6
| RD1-score14-3=1
| RD1-team15={{flagicon|USA}} Anderson
| RD1-seed15=
| RD1-team16={{flagicon|USA}} Baggs
| RD1-seed16=
| RD1-score15-1=6
| RD1-score16-1=2
| RD1-score15-2=6
| RD1-score16-2=2
| RD1-score15-3=6
| RD1-score16-3=1
}}
==Section 4==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD1-seed01=
| RD1-team01={{flagicon|USA}} Adoue
| RD1-score01-1=6
| RD1-score01-2=6
| RD1-score01-3=8
| RD1-score01-4=
| RD1-score01-5=
| RD1-seed02=
| RD1-team02={{flagicon|USA}} Wood
| RD1-score02-1=1
| RD1-score02-2=3
| RD1-score02-3=6
| RD1-score02-4=
| RD1-score02-5=
| RD1-seed03=
| RD1-team03={{flagicon|USA}} Voshell
| RD1-score03-1=
| RD1-score03-2=
| RD1-score03-3=
| RD1-score03-4=
| RD1-score03-5=
| RD1-seed04=
| RD1-team04={{flagicon|JPN}} Kumagae
| RD1-score04-1=w/
| RD1-score04-2=o
| RD1-score04-3=
| RD1-score04-4=
| RD1-score04-5=
| RD1-seed05=
| RD1-team05={{flagicon|USA}} Ingraham
| RD1-score05-1=6
| RD1-score05-2=6
| RD1-score05-3=6
| RD1-score05-4=
| RD1-score05-5=
| RD1-seed06=
| RD1-team06={{flagicon|AUS}} Peach
| RD1-score06-1=3
| RD1-score06-2=1
| RD1-score06-3=4
| RD1-score06-4=
| RD1-score06-5=
| RD1-seed07=
| RD1-team07={{flagicon|USA}} Williams
| RD1-score07-1=6
| RD1-score07-2=6
| RD1-score07-3=6
| RD1-score07-4=
| RD1-score07-5=
| RD1-seed08=
| RD1-team08={{flagicon|USA}} Thayer
| RD1-score08-1=0
| RD1-score08-2=2
| RD1-score08-3=1
| RD1-score08-4=
| RD1-score08-5=
| RD1-seed09=
| RD1-team09={{flagicon|USA}} LeRoy
| RD1-score09-1=6
| RD1-score09-2=6
| RD1-score09-3=6
| RD1-score09-4=
| RD1-score09-5=
| RD1-seed10=
| RD1-team10={{flagicon|MEX}} De La Borbolla
| RD1-score10-1=4
| RD1-score10-2=2
| RD1-score10-3=3
| RD1-score10-4=
| RD1-score10-5=
| RD1-seed11=
| RD1-team11={{flagicon|AUS}} Hawkes
| RD1-score11-1=6
| RD1-score11-2=6
| RD1-score11-3=6
| RD1-score11-4=
| RD1-score11-5=
| RD1-seed12=
| RD1-team12={{flagicon|USA}} Rosenbaum
| RD1-score12-1=2
| RD1-score12-2=3
| RD1-score12-3=3
| RD1-score12-4=
| RD1-score12-5=
| RD1-seed13=
| RD1-team13={{flagicon|USA}} Symington
| RD1-score13-1=
| RD1-score13-2=
| RD1-score13-3=
| RD1-score13-4=
| RD1-score13-5=
| RD1-seed14=
| RD1-team14={{flagicon|USA}} Caner
| RD1-score14-1=w/
| RD1-score14-2=o
| RD1-score14-3=
| RD1-score14-4=
| RD1-score14-5=
| RD1-seed15=
| RD1-team15={{flagicon|AUS}} Anderson
| RD1-score15-1=1
| RD1-score15-2=6
| RD1-score15-3=6
| RD1-score15-4=6
| RD1-score15-5=
| RD1-seed16=
| RD1-team16={{flagicon|USA}} Rice
| RD1-score16-1=6
| RD1-score16-2=2
| RD1-score16-3=3
| RD1-score16-4=3
| RD1-score16-5=
| RD2-seed01=
| RD2-team01={{flagicon|USA}} Adoue
| RD2-score01-1=6
| RD2-score01-2=2
| RD2-score01-3=6
| RD2-score01-4=6
| RD2-score01-5=
| RD2-seed02=
| RD2-team02={{flagicon|USA}} Voshell
| RD2-score02-1=2
| RD2-score02-2=6
| RD2-score02-3=4
| RD2-score02-4=4
| RD2-score02-5=
| RD2-seed03=
| RD2-team03={{flagicon|USA}} Ingraham
| RD2-score03-1=1
| RD2-score03-2=5
| RD2-score03-3=2
| RD2-score03-4=
| RD2-score03-5=
| RD2-seed04=
| RD2-team04={{flagicon|USA}} Williams
| RD2-score04-1=6
| RD2-score04-2=7
| RD2-score04-3=6
| RD2-score04-4=
| RD2-score04-5=
| RD2-seed05=
| RD2-team05={{flagicon|USA}} LeRoy
| RD2-score05-1=1
| RD2-score05-2=2
| RD2-score05-3=3
| RD2-score05-4=
| RD2-score05-5=
| RD2-seed06=
| RD2-team06={{flagicon|AUS}} Hawkes
| RD2-score06-1=6
| RD2-score06-2=6
| RD2-score06-3=6
| RD2-score06-4=
| RD2-score06-5=
| RD2-seed07=
| RD2-team07={{flagicon|USA}} Symington
| RD2-score07-1=1
| RD2-score07-2=0
| RD2-score07-3=5
| RD2-score07-4=
| RD2-score07-5=
| RD2-seed08=
| RD2-team08={{flagicon|AUS}} Anderson
| RD2-score08-1=6
| RD2-score08-2=6
| RD2-score08-3=7
| RD2-score08-4=
| RD2-score08-5=
| RD3-seed01=
| RD3-team01={{flagicon|USA}} Adoue
| RD3-score01-1=5
| RD3-score01-2=3
| RD3-score01-3=3
| RD3-score01-4=
| RD3-score01-5=
| RD3-seed02=
| RD3-team02={{flagicon|USA}} Williams
| RD3-score02-1=7
| RD3-score02-2=6
| RD3-score02-3=6
| RD3-score02-4=
| RD3-score02-5=
| RD3-seed03=
| RD3-team03={{flagicon|AUS}} Hawkes
| RD3-score03-1=8
| RD3-score03-2=0
| RD3-score03-3=3
| RD3-score03-4=
| RD3-score03-5=
| RD3-seed04=
| RD3-team04={{flagicon|AUS}} Anderson
| RD3-score04-1=10
| RD3-score04-2=6
| RD3-score04-3=6
| RD3-score04-4=
| RD3-score04-5=
| RD4-seed01=
| RD4-team01={{flagicon|USA}} Williams
| RD4-score01-1=3
| RD4-score01-2=3
| RD4-score01-3=6
| RD4-score01-4=6
| RD4-score01-5=4
| RD4-seed02=
| RD4-team02={{flagicon|AUS}} Anderson
| RD4-score02-1=6
| RD4-score02-2=6
| RD4-score02-3=2
| RD4-score02-4=4
| RD4-score02-5=6
}}
==Section 5==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD1-seed01=
| RD1-team01={{flagicon|USA}} Talland
| RD1-score01-1=
| RD1-score01-2=
| RD1-score01-3=
| RD1-score01-4=
| RD1-score01-5=
| RD1-seed02=
| RD1-team02={{flagicon|USA}} Murray
| RD1-score02-1=w/
| RD1-score02-2=o
| RD1-score02-3=
| RD1-score02-4=
| RD1-score02-5=
| RD1-seed03=
| RD1-team03={{flagicon|USA}} Mathey
| RD1-score03-1=
| RD1-score03-2=
| RD1-score03-3=
| RD1-score03-4=
| RD1-score03-5=
| RD1-seed04=
| RD1-team04={{flagicon|USA}} Chapin
| RD1-score04-1=w/
| RD1-score04-2=o
| RD1-score04-3=
| RD1-score04-4=
| RD1-score04-5=
| RD1-seed05=
| RD1-team05={{flagicon|USA}} Morgan
| RD1-score05-1=6
| RD1-score05-2=6
| RD1-score05-3=4
| RD1-score05-4=6
| RD1-score05-5=
| RD1-seed06=
| RD1-team06={{flagicon|USA}} Kamber
| RD1-score06-1=4
| RD1-score06-2=2
| RD1-score06-3=6
| RD1-score06-4=2
| RD1-score06-5=
| RD1-seed07=
| RD1-team07={{flagicon|GBR}} Lowe
| RD1-score07-1=
| RD1-score07-2=
| RD1-score07-3=
| RD1-score07-4=
| RD1-score07-5=
| RD1-seed08=
| RD1-team08={{flagicon|USA}} Werner
| RD1-score08-1=w/
| RD1-score08-2=o
| RD1-score08-3=
| RD1-score08-4=
| RD1-score08-5=
| RD1-seed09=
| RD1-team09={{flagicon|USA}} Banks
| RD1-score09-1=
| RD1-score09-2=
| RD1-score09-3=
| RD1-score09-4=
| RD1-score09-5=
| RD1-seed10=
| RD1-team10={{flagicon|USA}} Edralin
| RD1-score10-1=w/
| RD1-score10-2=o
| RD1-score10-3=
| RD1-score10-4=
| RD1-score10-5=
| RD1-seed11=
| RD1-team11={{flagicon|USA}} Dudley
| RD1-score11-1=
| RD1-score11-2=
| RD1-score11-3=
| RD1-score11-4=
| RD1-score11-5=
| RD1-seed12=
| RD1-team12={{flagicon|USA}} Garcia
| RD1-score12-1=w/
| RD1-score12-2=o
| RD1-score12-3=
| RD1-score12-4=
| RD1-score12-5=
| RD1-seed13=
| RD1-team13={{flagicon|USA}} Pearson
| RD1-score13-1=6
| RD1-score13-2=6
| RD1-score13-3=6
| RD1-score13-4=
| RD1-score13-5=
| RD1-seed14=
| RD1-team14={{flagicon|USA}} Davis
| RD1-score14-1=3
| RD1-score14-2=2
| RD1-score14-3=4
| RD1-score14-4=
| RD1-score14-5=
| RD1-seed15=
| RD1-team15={{flagicon|USA}} Niles
| RD1-score15-1=6
| RD1-score15-2=6
| RD1-score15-3=6
| RD1-score15-4=
| RD1-score15-5=
| RD1-seed16=
| RD1-team16={{flagicon|USA}} Miller
| RD1-score16-1=1
| RD1-score16-2=0
| RD1-score16-3=2
| RD1-score16-4=
| RD1-score16-5=
| RD2-seed01=
| RD2-team01={{flagicon|USA}} Talland
| RD2-score01-1=w/
| RD2-score01-2=o
| RD2-score01-3=
| RD2-score01-4=
| RD2-score01-5=
| RD2-seed02=
| RD2-team02={{flagicon|USA}} Mathey
| RD2-score02-1=
| RD2-score02-2=
| RD2-score02-3=
| RD2-score02-4=
| RD2-score02-5=
| RD2-seed03=
| RD2-team03={{flagicon|USA}} Morgan
| RD2-score03-1=2
| RD2-score03-2=2
| RD2-score03-3=2
| RD2-score03-4=
| RD2-score03-5=
| RD2-seed04=
| RD2-team04={{flagicon|GBR}} Lowe
| RD2-score04-1=6
| RD2-score04-2=6
| RD2-score04-3=6
| RD2-score04-4=
| RD2-score04-5=
| RD2-seed05=
| RD2-team05={{flagicon|USA}} Banks
| RD2-score05-1=6
| RD2-score05-2=6
| RD2-score05-3=9
| RD2-score05-4=6
| RD2-score05-5=
| RD2-seed06=
| RD2-team06={{flagicon|USA}} Dudley
| RD2-score06-1=3
| RD2-score06-2=3
| RD2-score06-3=11
| RD2-score06-4=2
| RD2-score06-5=
| RD2-seed07=
| RD2-team07={{flagicon|USA}} Pearson
| RD2-score07-1=5
| RD2-score07-2=3
| RD2-score07-3=6
| RD2-score07-4=6
| RD2-score07-5=6
| RD2-seed08=
| RD2-team08={{flagicon|USA}} Niles
| RD2-score08-1=7
| RD2-score08-2=6
| RD2-score08-3=3
| RD2-score08-4=4
| RD2-score08-5=3
| RD3-seed01=
| RD3-team01={{flagicon|USA}} Mathey
| RD3-score01-1=w/
| RD3-score01-2=o
| RD3-score01-3=
| RD3-score01-4=
| RD3-score01-5=
| RD3-seed02=
| RD3-team02={{flagicon|GBR}} Lowe
| RD3-score02-1=
| RD3-score02-2=
| RD3-score02-3=
| RD3-score02-4=
| RD3-score02-5=
| RD3-seed03=
| RD3-team03={{flagicon|USA}} Banks
| RD3-score03-1=3
| RD3-score03-2=3
| RD3-score03-3=4
| RD3-score03-4=
| RD3-score03-5=
| RD3-seed04=
| RD3-team04={{flagicon|USA}} Pearson
| RD3-score04-1=6
| RD3-score04-2=6
| RD3-score04-3=6
| RD3-score04-4=
| RD3-score04-5=
| RD4-seed01=
| RD4-team01={{flagicon|GBR}} Lowe
| RD4-score01-1=6
| RD4-score01-2=6
| RD4-score01-3=6
| RD4-score01-4=
| RD4-score01-5=
| RD4-seed02=
| RD4-team02={{flagicon|USA}} Pearson
| RD4-score02-1=2
| RD4-score02-2=3
| RD4-score02-3=3
| RD4-score02-4=
| RD4-score02-5=
}}
==Section 6==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD4-team01={{flagicon|USA}} Johnston
| RD4-seed01=
| RD4-team02={{flagicon|USA}} Tilden
| RD4-seed02=
| RD4-score01-1=6
| RD4-score02-1=4
| RD4-score01-2=5
| RD4-score02-2=7
| RD4-score01-3=4
| RD4-score02-3=6
| RD4-score01-4=3
| RD4-score02-4=6
| RD4-score01-5=
| RD4-score02-5=
| RD3-team01={{flagicon|USA}} Johnston
| RD3-seed01=
| RD3-team02={{flagicon|USA}} Richards
| RD3-seed02=
| RD3-score01-1=2
| RD3-score02-1=6
| RD3-score01-2=3
| RD3-score02-2=6
| RD3-score01-3=6
| RD3-score02-3=3
| RD3-score01-4=9
| RD3-score02-4=7
| RD3-score01-5=6
| RD3-score02-5=2
| RD3-team03={{flagicon|JPN}} Shimizu
| RD3-seed03=
| RD3-team04={{flagicon|USA}} Tilden
| RD3-seed04=
| RD3-score03-1=4
| RD3-score04-1=6
| RD3-score03-2=4
| RD3-score04-2=6
| RD3-score03-3=1
| RD3-score04-3=6
| RD3-score03-4=
| RD3-score04-4=
| RD3-score03-5=
| RD3-score04-5=
| RD2-team01={{flagicon|USA}} Johnston
| RD2-seed01=
| RD2-team02={{flagicon|USA}} Hall
| RD2-seed02=
| RD2-score01-1=6
| RD2-score02-1=4
| RD2-score01-2=6
| RD2-score02-2=1
| RD2-score01-3=6
| RD2-score02-3=4
| RD2-score01-4=
| RD2-score02-4=
| RD2-team03={{flagicon|USA}} Hayes
| RD2-seed03=
| RD2-team04={{flagicon|USA}} Richards
| RD2-seed04=
| RD2-score03-1=3
| RD2-score04-1=6
| RD2-score03-2=4
| RD2-score04-2=6
| RD2-score03-3=4
| RD2-score04-3=6
| RD2-team05={{flagicon|USA}} Allen
| RD2-seed05=
| RD2-team06={{flagicon|JPN}} Shimizu
| RD2-seed06=
| RD2-score05-1=3
| RD2-score06-1=6
| RD2-score05-2=0
| RD2-score06-2=6
| RD2-score05-3=10
| RD2-score06-3=12
| RD2-team07={{flagicon|USA}} Tilden
| RD2-seed07=
| RD2-team08={{flagicon|USA}} Goldsborough
| RD2-seed08=
| RD2-score07-1=6
| RD2-score08-1=2
| RD2-score07-2=6
| RD2-score08-2=1
| RD2-score07-3=6
| RD2-score08-3=4
| RD1-team01={{flagicon|USA}} Johnston
| RD1-seed01=
| RD1-team02={{flagicon|USA}} Kelleher
| RD1-seed02=
| RD1-score01-1=6
| RD1-score02-1=4
| RD1-score01-2=6
| RD1-score02-2=4
| RD1-score01-3=6
| RD1-score02-3=4
| RD1-team03={{flagicon|USA}} Hall
| RD1-seed03=
| RD1-team04={{flagicon|USA}} Ackerland
| RD1-seed04=
| RD1-score03-1=2
| RD1-score04-1=6
| RD1-score03-2=3
| RD1-score04-2=6
| RD1-score03-3=7
| RD1-score04-3=5
| RD1-score03-4=8
| RD1-score04-4=6
| RD1-score03-5=7
| RD1-score04-5=5
| RD1-team05={{flagicon|USA}} Hayes
| RD1-seed05=
| RD1-team06={{flagicon|USA}} Richards
| RD1-seed06=
| RD1-score05-1=6
| RD1-score06-1=1
| RD1-score05-2=6
| RD1-score06-2=1
| RD1-score05-3=6
| RD1-score06-3=0
| RD1-score05-4=
| RD1-score06-4=
| RD1-team07={{flagicon|USA}} Richards
| RD1-seed07=
| RD1-team08={{flagicon|USA}} Herndon
| RD1-seed08=
| RD1-score07-1=6
| RD1-score08-1=1
| RD1-score07-2=6
| RD1-score08-2=1
| RD1-score07-3=3
| RD1-score08-3=6
| RD1-score07-4=6
| RD1-score08-4=4
| RD1-team09={{flagicon|USA}} Allen
| RD1-seed09=
| RD1-team10={{flagicon|USA}} Hennessey
| RD1-seed10=
| RD1-score09-1=6
| RD1-score10-1=2
| RD1-score09-2=7
| RD1-score10-2=5
| RD1-score09-3=6
| RD1-score10-3=1
| RD1-team11={{flagicon|JPN}} Shimizu
| RD1-seed11=
| RD1-team12={{flagicon|USA}} Nielsen
| RD1-seed12=
| RD1-score11-1=6
| RD1-score12-1=1
| RD1-score11-2=6
| RD1-score12-2=1
| RD1-score11-3=6
| RD1-score12-3=1
| RD1-team13={{flagicon|USA}} Tilden
| RD1-seed13=
| RD1-team14={{flagicon|USA}} Wright
| RD1-seed14=
| RD1-score13-1=6
| RD1-score14-1=0
| RD1-score13-2=6
| RD1-score14-2=0
| RD1-score13-3=6
| RD1-score14-3=1
| RD1-team15={{flagicon|USA}} Goldsborough
| RD1-seed15=
| RD1-team16={{flagicon|USA}} Goldman
| RD1-seed16=
| RD1-score15-1=6
| RD1-score16-1=2
| RD1-score15-2=7
| RD1-score16-2=5
| RD1-score15-3=6
| RD1-score16-3=2
}}
==Section 7==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD1-seed01=
| RD1-team01={{flagicon|USA}} Magee
| RD1-score01-1=4
| RD1-score01-2=6
| RD1-score01-3=2
| RD1-score01-4=7
| RD1-score01-5=8
| RD1-seed02=
| RD1-team02={{flagicon|USA}} Gore
| RD1-score02-1=6
| RD1-score02-2=0
| RD1-score02-3=6
| RD1-score02-4=5
| RD1-score02-5=6
| RD1-seed03=
| RD1-team03={{flagicon|USA}} Neer
| RD1-score03-1=6
| RD1-score03-2=6
| RD1-score03-3=9
| RD1-score03-4=
| RD1-score03-5=
| RD1-seed04=
| RD1-team04={{flagicon|USA}} Tremaine
| RD1-score04-1=2
| RD1-score04-2=1
| RD1-score04-3=7
| RD1-score04-4=
| RD1-score04-5=
| RD1-seed05=
| RD1-team05={{flagicon|AUS}} Todd
| RD1-score05-1=6
| RD1-score05-2=6
| RD1-score05-3=6
| RD1-score05-4=
| RD1-score05-5=
| RD1-seed06=
| RD1-team06={{flagicon|USA}} Groesbeck
| RD1-score06-1=1
| RD1-score06-2=1
| RD1-score06-3=0
| RD1-score06-4=
| RD1-score06-5=
| RD1-seed07=
| RD1-team07={{flagicon|USA}} Davis
| RD1-score07-1=
| RD1-score07-2=
| RD1-score07-3=
| RD1-score07-4=
| RD1-score07-5=
| RD1-seed08=
| RD1-team08={{flagicon|USA}} Ingersoll
| RD1-score08-1=w/
| RD1-score08-2=o
| RD1-score08-3=
| RD1-score08-4=
| RD1-score08-5=
| RD1-seed09=
| RD1-team09={{flagicon|USA}} Emerson
| RD1-score09-1=6
| RD1-score09-2=6
| RD1-score09-3=5
| RD1-score09-4=6
| RD1-score09-5=
| RD1-seed10=
| RD1-team10={{flagicon|USA}} Osborne
| RD1-score10-1=3
| RD1-score10-2=4
| RD1-score10-3=7
| RD1-score10-4=1
| RD1-score10-5=
| RD1-seed11=
| RD1-team11={{flagicon|USA}} de Turenne
| RD1-score11-1=6
| RD1-score11-2=6
| RD1-score11-3=10
| RD1-score11-4=
| RD1-score11-5=
| RD1-seed12=
| RD1-team12={{flagicon|USA}} Bruneau
| RD1-score12-1=0
| RD1-score12-2=4
| RD1-score12-3=8
| RD1-score12-4=
| RD1-score12-5=
| RD2-seed01=
| RD2-team01={{flagicon|USA}} Magee
| RD2-score01-1=2
| RD2-score01-2=8
| RD2-score01-3=2
| RD2-score01-4=
| RD2-score01-5=
| RD2-seed02=
| RD2-team02={{flagicon|USA}} Neer
| RD2-score02-1=6
| RD2-score02-2=10
| RD2-score02-3=6
| RD2-score02-4=
| RD2-score02-5=
| RD2-seed03=
| RD2-team03={{flagicon|AUS}} Todd
| RD2-score03-1=6
| RD2-score03-2=6
| RD2-score03-3=4
| RD2-score03-4=3
| RD2-score03-5=3
| RD2-seed04=
| RD2-team04={{flagicon|USA}} Davis
| RD2-score04-1=4
| RD2-score04-2=3
| RD2-score04-3=6
| RD2-score04-4=6
| RD2-score04-5=6
| RD2-seed05=
| RD2-team05={{flagicon|USA}} Emerson
| RD2-score05-1=6
| RD2-score05-2=6
| RD2-score05-3=6
| RD2-score05-4=6
| RD2-score05-5=
| RD2-seed06=
| RD2-team06={{flagicon|USA}} de Turenne
| RD2-score06-1=3
| RD2-score06-2=8
| RD2-score06-3=4
| RD2-score06-4=4
| RD2-score06-5=
| RD2-seed07=
| RD2-team07={{flagicon|USA}} Clothier
| RD2-score07-1=6
| RD2-score07-2=6
| RD2-score07-3=6
| RD2-score07-4=
| RD2-score07-5=
| RD2-seed08=
| RD2-team08={{flagicon|USA}} Taylor
| RD2-score08-1=1
| RD2-score08-2=0
| RD2-score08-3=2
| RD2-score08-4=
| RD2-score08-5=
| RD3-seed01=
| RD3-team01={{flagicon|USA}} Neer
| RD3-score01-1=3
| RD3-score01-2=4
| RD3-score01-3=6
| RD3-score01-4=4
| RD3-score01-5=
| RD3-seed02=
| RD3-team02={{flagicon|USA}} Davis
| RD3-score02-1=6
| RD3-score02-2=6
| RD3-score02-3=2
| RD3-score02-4=6
| RD3-score02-5=
| RD3-seed03=
| RD3-team03={{flagicon|USA}} Emerson
| RD3-score03-1=1
| RD3-score03-2=4
| RD3-score03-3=1
| RD3-score03-4=
| RD3-score03-5=
| RD3-seed04=
| RD3-team04={{flagicon|USA}} Clothier
| RD3-score04-1=6
| RD3-score04-2=6
| RD3-score04-3=6
| RD3-score04-4=
| RD3-score04-5=
| RD4-seed01=
| RD4-team01={{flagicon|USA}} Davis
| RD4-score01-1=9
| RD4-score01-2=5
| RD4-score01-3=14
| RD4-score01-4=6
| RD4-score01-5=
| RD4-seed02=
| RD4-team02={{flagicon|USA}} Clothier
| RD4-score02-1=7
| RD4-score02-2=7
| RD4-score02-3=12
| RD4-score02-4=3
| RD4-score02-5=
}}
==Section 8==
{{16TeamBracket|compact=y|sets=5|byes=1
|nowrap=y
| RD1=First round
| RD2=Second round
| RD3=Third round
| RD4=Fourth round
| RD4-team01={{flagicon|USA}} Gallon
| RD4-seed01=
| RD4-team02={{flagicon|USA}} Kinsey
| RD4-seed02=
| RD4-score01-1=0
| RD4-score02-1=6
| RD4-score01-2=1
| RD4-score02-2=6
| RD4-score01-3=4
| RD4-score02-3=6
| RD4-score01-4=
| RD4-score02-4=
| RD4-score01-5=
| RD4-score02-5=
| RD3-team01={{flagicon|USA}} Rogers
| RD3-seed01=
| RD3-team02={{flagicon|USA}} Gallon
| RD3-seed02=
| RD3-score01-1=4
| RD3-score02-1=6
| RD3-score01-2=6
| RD3-score02-2=2
| RD3-score01-3=2
| RD3-score02-3=6
| RD3-score01-4=12
| RD3-score02-4=10
| RD3-score01-5=2
| RD3-score02-5=6
| RD3-team03={{flagicon|USA}} Kinsey
| RD3-seed03=
| RD3-team04={{flagicon|USA}} Fall
| RD3-seed04=
| RD3-score03-1=6
| RD3-score04-1=0
| RD3-score03-2=6
| RD3-score04-2=0
| RD3-score03-3=6
| RD3-score04-3=3
| RD3-score03-4=
| RD3-score04-4=
| RD3-score03-5=
| RD3-score04-5=
| RD2-team01={{flagicon|USA}} Rogers
| RD2-seed01=
| RD2-team02={{flagicon|USA}} Martin
| RD2-seed02=
| RD2-score01-1=6
| RD2-score02-1=1
| RD2-score01-2=6
| RD2-score02-2=4
| RD2-score01-3=6
| RD2-score02-3=2
| RD2-score01-4=
| RD2-score02-4=
| RD2-team03={{flagicon|USA}} Gallon
| RD2-seed03=
| RD2-team04={{flagicon|USA}} Neeley
| RD2-seed04=
| RD2-score03-1=6
| RD2-score04-1=3
| RD2-score03-2=6
| RD2-score04-2=1
| RD2-score03-3=6
| RD2-score04-3=2
| RD2-team05={{flagicon|USA}} Kinsey
| RD2-seed05=
| RD2-team06={{flagicon|USA}} Watson
| RD2-seed06=
| RD2-score05-1=6
| RD2-score06-1=3
| RD2-score05-2=6
| RD2-score06-2=2
| RD2-score05-3=6
| RD2-score06-3=2
| RD2-team07={{flagicon|USA}} Fall
| RD2-seed07=
| RD2-team08={{flagicon|USA}} Wilson
| RD2-seed08=
| RD2-score07-1=7
| RD2-score08-1=5
| RD2-score07-2=6
| RD2-score08-2=1
| RD2-score07-3=6
| RD2-score08-3=2
}}
References
{{reflist}}
{{S-start}}
{{s-bef|before={{nowrap|1921 Wimbledon Championships}}}}
{{s-ttl|title=Grand Slams
Men's Singles}}
{{s-aft|after={{nowrap|1922 Australasian Championships}}}}
{{S-end}}
{{US Open men's singles drawsheets}}
{{US Open men's singles champions}}
{{DEFAULTSORT:U.S. National Championships - Men's Singles,1921}}