2011 Aircel Chennai Open – Singles

{{moresources|date=November 2018}}

{{Use dmy dates|date=October 2018}}

{{Use Indian English|date=October 2018}}

{{Tennis events|2011|Aircel Chennai Open|

| defchamp =

| champ = {{flagicon|SUI}} Stanislas Wawrinka

| runner = {{flagicon|BEL}} Xavier Malisse

| score = 7–5, 4–6, 6–1

| edition =

| type = singles doubles

| draw = 32 (4{{abbr| Q | Qualifiers}} / 3{{abbr| WC | Wild Cards}})

| seeds = 8

| before_name = Aircel Chennai Open – Singles

| after_name = Aircel Chennai Open – Singles

}}

{{Main|2011 Aircel Chennai Open}}

Marin Čilić was the two-time defending champion, but lost in the first round to Kei Nishikori.

3rd seed Stanislas Wawrinka defeated 7th seed Xavier Malisse 7–5, 4–6, 6–1 in the final match.

Seeds

{{columns-list|colwidth=30em|

  1. {{flagicon|CZE}} Tomáš Berdych (semifinals)
  2. {{flagicon|CRO}} Marin Čilić (first round)
  3. {{flagicon|SUI}} Stanislas Wawrinka (champion)
  4. {{flagicon|FRA}} Richard Gasquet (second round)
  5. {{flagicon|FRA}} Jérémy Chardy (first round)
  6. {{flagicon|SRB}} Janko Tipsarević (semifinals)
  7. {{flagicon|BEL}} Xavier Malisse (final)
  8. {{flagicon|NED}} Robin Haase (quarterfinals)

}}

Qualifying

{{Main|2011 Aircel Chennai Open – Singles qualifying}}

Draw

{{Draw key}}

=Finals=

{{4TeamBracket-Tennis3

| RD1=Semifinals

| RD2=Final

| team-width=175

| RD1-seed1=1

| RD1-team1={{flagicon|CZE}} Tomáš Berdych

| RD1-score1-1=4

| RD1-score1-2=1

| RD1-score1-3= 

| RD1-seed2=3/WC

| RD1-team2={{flagicon|SUI}} Stanislas Wawrinka

| RD1-score2-1=6

| RD1-score2-2=6

| RD1-score2-3= 

| RD1-seed3=7

| RD1-team3={{flagicon|BEL}} Xavier Malisse

| RD1-score3-1=3

| RD1-score3-2=6

| RD1-score3-3=6

| RD1-seed4=6

| RD1-team4={{flagicon|SRB}} Janko Tipsarević

| RD1-score4-1=6

| RD1-score4-2=3

| RD1-score4-3=2

| RD2-seed1=3/WC

| RD2-team1={{flagicon|SUI}} Stanislas Wawrinka

| RD2-score1-1=7

| RD2-score1-2=4

| RD2-score1-3=6

| RD2-seed2=7

| RD2-team2={{flagicon|BEL}} Xavier Malisse

| RD2-score2-1=5

| RD2-score2-2=6

| RD2-score2-3=1

}}

=Top half=

{{16TeamBracket-Compact-Tennis3

| RD1=First round

| RD2=Second round

| RD3=Quarterfinals

| RD4=Semifinals

| RD1-seed01=1

| RD1-team01={{flagicon|CZE}} T Berdych

| RD1-score01-1=6

| RD1-score01-2=6

| RD1-score01-3= 

| RD1-seed02= 

| RD1-team02={{flagicon|POR}} F Gil

| RD1-score02-1=0

| RD1-score02-2=1

| RD1-score02-3= 

| RD1-seed03= 

| RD1-team03={{flagicon|BRA}} M Daniel

| RD1-score03-1=2

| RD1-score03-2=2

| RD1-score03-3= 

| RD1-seed04= 

| RD1-team04={{flagicon|CRO}} I Dodig

| RD1-score04-1=6

| RD1-score04-2=6

| RD1-score04-3= 

| RD1-seed05= 

| RD1-team05={{flagicon|GER}} D Gremelmayr

| RD1-score05-1=61

| RD1-score05-2=4

| RD1-score05-3= 

| RD1-seed06= 

| RD1-team06={{flagicon|USA}} R Kendrick

| RD1-score06-1=77

| RD1-score06-2=6

| RD1-score06-3= 

| RD1-seed07= 

| RD1-team07={{flagicon|SLO}} B Kavčič

| RD1-score07-1=6

| RD1-score07-2=6

| RD1-score07-3= 

| RD1-seed08=5

| RD1-team08={{flagicon|FRA}} J Chardy

| RD1-score08-1=3

| RD1-score08-2=2

| RD1-score08-3= 

| RD1-seed09=3/WC

| RD1-team09={{flagicon|SUI}} S Wawrinka

| RD1-score09-1=6

| RD1-score09-2=6

| RD1-score09-3= 

| RD1-seed10=WC

| RD1-team10={{flagicon|IND}} R Bopanna

| RD1-score10-1=4

| RD1-score10-2=4

| RD1-score10-3= 

| RD1-seed11=Q

| RD1-team11={{flagicon|BEL}} D Goffin

| RD1-score11-1=6

| RD1-score11-2=6

| RD1-score11-3= 

| RD1-seed12= 

| RD1-team12={{flagicon|IND}} S Devvarman

| RD1-score12-1=2

| RD1-score12-2=4

| RD1-score12-3= 

| RD1-seed13= 

| RD1-team13={{flagicon|GER}} D Brown

| RD1-score13-1=4

| RD1-score13-2=6

| RD1-score13-3=2

| RD1-seed14=Q

| RD1-team14={{flagicon|JPN}} Y Sugita

| RD1-score14-1=6

| RD1-score14-2=2

| RD1-score14-3=6

| RD1-seed15=PR

| RD1-team15={{flagicon|CAN}} F Dancevic

| RD1-score15-1=78

| RD1-score15-2=4

| RD1-score15-3=4

| RD1-seed16=8

| RD1-team16={{flagicon|NED}} R Haase

| RD1-score16-1=66

| RD1-score16-2=6

| RD1-score16-3=6

| RD2-seed01=1

| RD2-team01={{flagicon|CZE}} T Berdych

| RD2-score01-1=6

| RD2-score01-2=6

| RD2-score01-3= 

| RD2-seed02= 

| RD2-team02={{flagicon|CRO}} I Dodig

| RD2-score02-1=2

| RD2-score02-2=4

| RD2-score02-3= 

| RD2-seed03= 

| RD2-team03={{flagicon|USA}} R Kendrick

| RD2-score03-1=2

| RD2-score03-2=2

| RD2-score03-3= 

| RD2-seed04= 

| RD2-team04={{flagicon|SLO}} B Kavčič

| RD2-score04-1=6

| RD2-score04-2=6

| RD2-score04-3= 

| RD2-seed05=3/WC

| RD2-team05={{flagicon|SUI}} S Wawrinka

| RD2-score05-1=77

| RD2-score05-2=77

| RD2-score05-3= 

| RD2-seed06=Q

| RD2-team06={{flagicon|BEL}} D Goffin

| RD2-score06-1=63

| RD2-score06-2=63

| RD2-score06-3= 

| RD2-seed07=Q

| RD2-team07={{flagicon|JPN}} Y Sugita

| RD2-score07-1=6

| RD2-score07-2=3

| RD2-score07-3=4

| RD2-seed08=8

| RD2-team08={{flagicon|NED}} R Haase

| RD2-score08-1=4

| RD2-score08-2=6

| RD2-score08-3=6

| RD3-seed01=1

| RD3-team01={{flagicon|CZE}} T Berdych

| RD3-score01-1=6

| RD3-score01-2=6

| RD3-score01-3= 

| RD3-seed02= 

| RD3-team02={{flagicon|SLO}} B Kavčič

| RD3-score02-1=3

| RD3-score02-2=3

| RD3-score02-3= 

| RD3-seed03=3/WC

| RD3-team03={{flagicon|SUI}} S Wawrinka

| RD3-score03-1=3

| RD3-score03-2=6

| RD3-score03-3=6

| RD3-seed04=8

| RD3-team04={{flagicon|NED}} R Haase

| RD3-score04-1=6

| RD3-score04-2=3

| RD3-score04-3=3

| RD4-seed01=1

| RD4-team01={{flagicon|CZE}} T Berdych

| RD4-score01-1=4

| RD4-score01-2=1

| RD4-score01-3= 

| RD4-seed02=3/WC

| RD4-team02={{flagicon|SUI}} S Wawrinka

| RD4-score02-1=6

| RD4-score02-2=6

| RD4-score02-3= 

}}

=Bottom half=

{{16TeamBracket-Compact-Tennis3

| RD1=First round

| RD2=Second round

| RD3=Quarterfinals

| RD4=Semifinals

| RD1-seed01=7

| RD1-team01={{flagicon|BEL}} X Malisse

| RD1-score01-1=6

| RD1-score01-2=6

| RD1-score01-3= 

| RD1-seed02= 

| RD1-team02={{flagicon|TUR}} M İlhan

| RD1-score02-1=3

| RD1-score02-2=1

| RD1-score02-3= 

| RD1-seed03= 

| RD1-team03={{flagicon|FRA}} S Robert

| RD1-score03-1=6

| RD1-score03-2=6

| RD1-score03-3= 

| RD1-seed04= 

| RD1-team04={{flagicon|AUT}} A Haider-Maurer

| RD1-score04-1=4

| RD1-score04-2=4

| RD1-score04-3= 

| RD1-seed05= 

| RD1-team05={{flagicon|ITA}} S Bolelli

| RD1-score05-1=2

| RD1-score05-2=2

| RD1-score05-3= 

| RD1-seed06= 

| RD1-team06={{flagicon|GER}} B Phau

| RD1-score06-1=6

| RD1-score06-2=6

| RD1-score06-3= 

| RD1-seed07=Q

| RD1-team07={{flagicon|FRA}} É Roger-Vasselin

| RD1-score07-1=1

| RD1-score07-2=3

| RD1-score07-3= 

| RD1-seed08=4

| RD1-team08={{flagicon|FRA}} R Gasquet

| RD1-score08-1=6

| RD1-score08-2=6

| RD1-score08-3= 

| RD1-seed09=6

| RD1-team09={{flagicon|SRB}} J Tipsarević

| RD1-score09-1=6

| RD1-score09-2=6

| RD1-score09-3= 

| RD1-seed10= 

| RD1-team10={{flagicon|ARG}} E Schwank

| RD1-score10-1=3

| RD1-score10-2=4

| RD1-score10-3= 

| RD1-seed11=WC

| RD1-team11={{flagicon|IND}} Y Bhambri

| RD1-score11-1=2

| RD1-score11-2=1

| RD1-score11-3= 

| RD1-seed12=Q

| RD1-team12={{flagicon|RUS}} A Kudryavtsev

| RD1-score12-1=6

| RD1-score12-2=6

| RD1-score12-3= 

| RD1-seed13= 

| RD1-team13={{flagicon|COL}} A Falla

| RD1-score13-1=7

| RD1-score13-2=6

| RD1-score13-3= 

| RD1-seed14= 

| RD1-team14={{flagicon|POR}} R Machado

| RD1-score14-1=5

| RD1-score14-2=3

| RD1-score14-3= 

| RD1-seed15= 

| RD1-team15={{flagicon|JPN}} K Nishikori

| RD1-score15-1=4

| RD1-score15-2=77

| RD1-score15-3=6

| RD1-seed16=2

| RD1-team16={{flagicon|CRO}} M Čilić

| RD1-score16-1=6

| RD1-score16-2=60

| RD1-score16-3=2

| RD2-seed01=7

| RD2-team01={{flagicon|BEL}} X Malisse

| RD2-score01-1=6

| RD2-score01-2=6

| RD2-score01-3= 

| RD2-seed02= 

| RD2-team02={{flagicon|FRA}} S Robert

| RD2-score02-1=2

| RD2-score02-2=2

| RD2-score02-3= 

| RD2-seed03= 

| RD2-team03={{flagicon|GER}} B Phau

| RD2-score03-1=1

| RD2-score03-2=77

| RD2-score03-3=77

| RD2-seed04=4

| RD2-team04={{flagicon|FRA}} R Gasquet

| RD2-score04-1=6

| RD2-score04-2=65

| RD2-score04-3=64

| RD2-seed05=6

| RD2-team05={{flagicon|SRB}} J Tipsarević

| RD2-score05-1=6

| RD2-score05-2=77

| RD2-score05-3= 

| RD2-seed06=Q

| RD2-team06={{flagicon|RUS}} A Kudryavtsev

| RD2-score06-1=2

| RD2-score06-2=63

| RD2-score06-3= 

| RD2-seed07= 

| RD2-team07={{flagicon|COL}} A Falla

| RD2-score07-1=6

| RD2-score07-2=3

| RD2-score07-3=2

| RD2-seed08= 

| RD2-team08={{flagicon|JPN}} K Nishikori

| RD2-score08-1=4

| RD2-score08-2=6

| RD2-score08-3=6

| RD3-seed01=7

| RD3-team01={{flagicon|BEL}} X Malisse

| RD3-score01-1=6

| RD3-score01-2=6

| RD3-score01-3= 

| RD3-seed02= 

| RD3-team02={{flagicon|GER}} B Phau

| RD3-score02-1=0

| RD3-score02-2=2

| RD3-score02-3= 

| RD3-seed03=6

| RD3-team03={{flagicon|SRB}} J Tipsarević

| RD3-score03-1=6

| RD3-score03-2=6

| RD3-score03-3= 

| RD3-seed04= 

| RD3-team04={{flagicon|JPN}} K Nishikori

| RD3-score04-1=4

| RD3-score04-2=4

| RD3-score04-3= 

| RD4-seed01=7

| RD4-team01={{flagicon|BEL}} X Malisse

| RD4-score01-1=3

| RD4-score01-2=6

| RD4-score01-3=6

| RD4-seed02=6

| RD4-team02={{flagicon|SRB}} J Tipsarević

| RD4-score02-1=6

| RD4-score02-2=3

| RD4-score02-3=2

}}