2023 Swiss Indoors – Singles

{{Tennis events|2023|Swiss Indoors|

| champ = {{flagicon|CAN}} Félix Auger-Aliassime

| runner = {{flagicon|POL}} Hubert Hurkacz

| score = 7–6(7–3), 7–6(7–5)

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

| seeds = 8

| type = singles doubles

| before_name = Swiss Indoors – Singles

| after_name = Swiss Indoors – Singles

| before_year = 2022

}}

{{main|2023 Swiss Indoors}}

Defending champion Félix Auger-Aliassime{{cite web |url=https://www.atptour.com/en/news/auger-aliassime-rune-basel-2022-sunday-final |title=Felix Seals ATP Tour Title Hat-Trick With Basel Triumph |date=2022-10-30 |website=atptour.com |publisher=ATP |access-date=2022-10-30}} defeated Hubert Hurkacz in the final, 7–6(7–3), 7–6(7–5) to win the singles tennis title at the 2023 Swiss Indoors. He saved a match point en route to his fifth career ATP Tour title (and his first in a year), in the quarterfinals against Alexander Shevchenko.

Seeds

{{columns-list|colwidth=30em|

  1. {{flagicon|DEN}} Holger Rune (semifinals)
  2. {{flagicon|NOR}} Casper Ruud (second round)
  3. {{flagicon|USA}} Taylor Fritz (second round)
  4. {{flagicon|POL}} Hubert Hurkacz (final)
  5. {{flagicon|AUS}} Alex de Minaur (second round)
  6. {{flagicon|CAN}} Félix Auger-Aliassime (champion)
  7. {{flagicon|CHI}} Nicolás Jarry (second round)
  8. {{flagicon|USA}} Sebastian Korda (first round)

}}

Draw

{{Draw key}}

=Finals=

{{4TeamBracket-Tennis3-v2

| RD1=Semifinals

| RD2=Final

| team-width=175

| RD1-seed1=1

| RD1-team1={{flagicon|DEN}} Holger Rune

| RD1-score1-1=3

| RD1-score1-2=2

| RD1-score1-3=

| RD1-seed2=6/WC

| RD1-team2={{flagicon|CAN}} Félix Auger-Aliassime

| RD1-score2-1=6

| RD1-score2-2=6

| RD1-score2-3=

| RD1-seed3=4

| RD1-team3={{flagicon|POL}} Hubert Hurkacz

| RD1-score3-1=6

| RD1-score3-2=3

| RD1-score3-3=77

| RD1-seed4= 

| RD1-team4={{flagicon|FRA}} Ugo Humbert

| RD1-score4-1=4

| RD1-score4-2=6

| RD1-score4-3=65

| RD2-seed1=6/WC

| RD2-team1={{flagicon|CAN}} Félix Auger-Aliassime

| RD2-score1-1=77

| RD2-score1-2=77

| RD2-score1-3=

| RD2-seed2=4

| RD2-team2={{flagicon|POL}} Hubert Hurkacz

| RD2-score2-1=63

| RD2-score2-2=65

| RD2-score2-3=

}}

=Top half=

{{16TeamBracket-Compact-Tennis3

| RD1=First round

| RD2=Second round

| RD3=Quarterfinals

| RD4=Semifinals

| RD1-seed01=1

| RD1-team01={{flagicon|DEN}} H Rune

| RD1-score01-1=1

| RD1-score01-2=7

| RD1-score01-3=6

| RD1-seed02=

| RD1-team02={{flagicon|SRB}} M Kecmanović

| RD1-score02-1=6

| RD1-score02-2=5

| RD1-score02-3=3

| RD1-seed03=Q

| RD1-team03={{flagicon|AUS}} C O'Connell

| RD1-score03-1=77

| RD1-score03-2=4

| RD1-score03-3=3

| RD1-seed04=

| RD1-team04={{flagicon|ARG}} S Báez

| RD1-score04-1=63

| RD1-score04-2=6

| RD1-score04-3=6

| RD1-seed05=

| RD1-team05={{flagicon|GBR}} A Murray

| RD1-score05-1=7

| RD1-score05-2=6

| RD1-score05-3=

| RD1-seed06=

| RD1-team06={{flagicon|GER}} Y Hanfmann

| RD1-score06-1=5

| RD1-score06-2=4

| RD1-score06-3=

| RD1-seed07=

| RD1-team07={{flagicon|ARG}} TM Etcheverry

| RD1-score07-1=6

| RD1-score07-2=1

| RD1-score07-3=6

| RD1-seed08=8

| RD1-team08={{flagicon|USA}} S Korda

| RD1-score08-1=3

| RD1-score08-2=6

| RD1-score08-3=3

| RD1-seed09=3

| RD1-team09={{flagicon|USA}} T Fritz

| RD1-score09-1=79

| RD1-score09-2=77

| RD1-score09-3=

| RD1-seed10=

| RD1-team10={{flagicon|AUS}} M Purcell

| RD1-score10-1=67

| RD1-score10-2=64

| RD1-score10-3=

| RD1-seed11=

| RD1-team11={{flagicon|SUI}} S Wawrinka

| RD1-score11-1=3

| RD1-score11-2=68

| RD1-score11-3=

| RD1-seed12=Q

| RD1-team12={{flagicon|}} A Shevchenko

| RD1-score12-1=6

| RD1-score12-2=710

| RD1-score12-3=

| RD1-seed13=Q

| RD1-team13={{flagicon|NED}} B van de Zandschulp

| RD1-score13-1=7

| RD1-score13-2=63

| RD1-score13-3=6

| RD1-seed14=

| RD1-team14={{flagicon|ESP}} R Bautista Agut

| RD1-score14-1=5

| RD1-score14-2=77

| RD1-score14-3=2

| RD1-seed15=WC

| RD1-team15={{flagicon|SUI}} L Riedi

| RD1-score15-1=3

| RD1-score15-2=2

| RD1-score15-3=

| RD1-seed16=6/WC

| RD1-team16={{flagicon|CAN}} F Auger-Aliassime

| RD1-score16-1=6

| RD1-score16-2=6

| RD1-score16-3=

| RD2-seed01=1

| RD2-team01={{flagicon|DEN}} H Rune

| RD2-score01-1=77

| RD2-score01-2=6

| RD2-score01-3=

| RD2-seed02=

| RD2-team02={{flagicon|ARG}} S Báez

| RD2-score02-1=62

| RD2-score02-2=1

| RD2-score02-3=

| RD2-seed03=

| RD2-team03={{flagicon|GBR}} A Murray

| RD2-score03-1=77

| RD2-score03-2=3

| RD2-score03-3=2

| RD2-seed04=

| RD2-team04={{flagicon|ARG}} TM Etcheverry

| RD2-score04-1=65

| RD2-score04-2=6

| RD2-score04-3=6

| RD2-seed05=3

| RD2-team05={{flagicon|USA}} T Fritz

| RD2-score05-1=79

| RD2-score05-2=66

| RD2-score05-3=65

| RD2-seed06=Q

| RD2-team06={{flagicon|}} A Shevchenko

| RD2-score06-1=67

| RD2-score06-2=78

| RD2-score06-3=77

| RD2-seed07=Q

| RD2-team07={{flagicon|NED}} B van de Zandschulp

| RD2-score07-1=4

| RD2-score07-2=2

| RD2-score07-3=

| RD2-seed08=6/WC

| RD2-team08={{flagicon|CAN}} F Auger-Aliassime

| RD2-score08-1=6

| RD2-score08-2=6

| RD2-score08-3=

| RD3-seed01=1

| RD3-team01={{flagicon|DEN}} H Rune

| RD3-score01-1=6

| RD3-score01-2=3

| RD3-score01-3=78

| RD3-seed02=

| RD3-team02={{flagicon|ARG}} TM Etcheverry

| RD3-score02-1=1

| RD3-score02-2=6

| RD3-score02-3=66

| RD3-seed03=Q

| RD3-team03={{flagicon|}} A Shevchenko

| RD3-score03-1=62

| RD3-score03-2=6

| RD3-score03-3=61

| RD3-seed04=6/WC

| RD3-team04={{flagicon|CAN}} F Auger-Aliassime

| RD3-score04-1=77

| RD3-score04-2=3

| RD3-score04-3=77

| RD4-seed01=1

| RD4-team01={{flagicon|DEN}} H Rune

| RD4-score01-1=3

| RD4-score01-2=2

| RD4-score01-3=

| RD4-seed02=6/WC

| RD4-team02={{flagicon|CAN}} F Auger-Aliassime

| 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=5

| RD1-team01={{flagicon|AUS}} A de Minaur

| RD1-score01-1=6

| RD1-score01-2=6

| RD1-score01-3=

| RD1-seed02=

| RD1-team02={{flagicon|ARG}} D Schwartzman

| RD1-score02-1=4

| RD1-score02-2=4

| RD1-score02-3=

| RD1-seed03=

| RD1-team03={{flagicon|NED}} T Griekspoor

| RD1-score03-1=77

| RD1-score03-2=2

| RD1-score03-3=6

| RD1-seed04=LL

| RD1-team04={{flagicon|BRA}} T Seyboth Wild

| RD1-score04-1=64

| RD1-score04-2=6

| RD1-score04-3=3

| RD1-seed05=

| RD1-team05={{flagicon|GER}} J-L Struff

| RD1-score05-1=79

| RD1-score05-2=6

| RD1-score05-3=

| RD1-seed06=

| RD1-team06={{flagicon|USA}} C Eubanks

| RD1-score06-1=67

| RD1-score06-2=4

| RD1-score06-3=

| RD1-seed07=

| RD1-team07={{flagicon|SRB}} D Lajović

| RD1-score07-1=62

| RD1-score07-2=3

| RD1-score07-3=

| RD1-seed08=4

| RD1-team08={{flagicon|POL}} H Hurkacz

| RD1-score08-1=77

| RD1-score08-2=6

| RD1-score08-3=

| RD1-seed09=7

| RD1-team09={{flagicon|CHI}} N Jarry

| RD1-score09-1=78

| RD1-score09-2=62

| RD1-score09-3=6

| RD1-seed10=

| RD1-team10={{flagicon|FRA}} A Mannarino

| RD1-score10-1=66

| RD1-score10-2=77

| RD1-score10-3=4

| RD1-seed11=

| RD1-team11={{flagicon|FRA}} U Humbert

| RD1-score11-1=6

| RD1-score11-2=4

| RD1-score11-3=77

| RD1-seed12=SE

| RD1-team12={{flagicon|USA}} M Giron

| RD1-score12-1=3

| RD1-score12-2=6

| RD1-score12-3=63

| RD1-seed13=WC

| RD1-team13={{flagicon|SUI}} D Stricker

| RD1-score13-1=77

| RD1-score13-2=6

| RD1-score13-3=

| RD1-seed14=Q

| RD1-team14={{flagicon|LIB}} B Hassan

| RD1-score14-1=62

| RD1-score14-2=2

| RD1-score14-3=

| RD1-seed15=

| RD1-team15={{flagicon|KAZ}} A Bublik

| RD1-score15-1=65

| RD1-score15-2=2

| RD1-score15-3=

| RD1-seed16=2

| RD1-team16={{flagicon|NOR}} C Ruud

| RD1-score16-1=77

| RD1-score16-2=6

| RD1-score16-3=

| RD2-seed01=5

| RD2-team01={{flagicon|AUS}} A de Minaur

| RD2-score01-1=4

| RD2-score01-2=3

| RD2-score01-3=

| RD2-seed02=

| RD2-team02={{flagicon|NED}} T Griekspoor

| RD2-score02-1=6

| RD2-score02-2=6

| RD2-score02-3=

| RD2-seed03=

| RD2-team03={{flagicon|GER}} J-L Struff

| RD2-score03-1=1

| RD2-score03-2=4

| RD2-score03-3=

| RD2-seed04=4

| RD2-team04={{flagicon|POL}} H Hurkacz

| RD2-score04-1=6

| RD2-score04-2=6

| RD2-score04-3=

| RD2-seed05=7

| RD2-team05={{flagicon|CHI}} N Jarry

| RD2-score05-1=63

| RD2-score05-2=64

| RD2-score05-3=

| RD2-seed06=

| RD2-team06={{flagicon|FRA}} U Humbert

| RD2-score06-1=77

| RD2-score06-2=77

| RD2-score06-3=

| RD2-seed07=WC

| RD2-team07={{flagicon|SUI}} D Stricker

| RD2-score07-1=6

| RD2-score07-2=3

| RD2-score07-3=77

| RD2-seed08=2

| RD2-team08={{flagicon|NOR}} C Ruud

| RD2-score08-1=4

| RD2-score08-2=6

| RD2-score08-3=61

| RD3-seed01=

| RD3-team01={{flagicon|NED}} T Griekspoor

| RD3-score01-1=78

| RD3-score01-2=4

| RD3-score01-3=4

| RD3-seed02=4

| RD3-team02={{flagicon|POL}} H Hurkacz

| RD3-score02-1=66

| RD3-score02-2=6

| RD3-score02-3=6

| RD3-seed03=

| RD3-team03={{flagicon|FRA}} U Humbert

| RD3-score03-1=6

| RD3-score03-2=2

| RD3-score03-3=6

| RD3-seed04=WC

| RD3-team04={{flagicon|SUI}} D Stricker

| RD3-score04-1=4

| RD3-score04-2=6

| RD3-score04-3=2

| RD4-seed01=4

| RD4-team01={{flagicon|POL}} H Hurkacz

| RD4-score01-1=6

| RD4-score01-2=3

| RD4-score01-3=77

| RD4-seed02=

| RD4-team02={{flagicon|FRA}} U Humbert

| RD4-score02-1=4

| RD4-score02-2=6

| RD4-score02-3=65

}}

Qualifying

=Seeds=

{{columns-list|colwidth=30em|

  1. {{flagicon|AUS}} Christopher O'Connell (qualified)
  2. {{flagicon|AUS}} Jordan Thompson (withdrew)
  3. {{flagicon|NED}} Botic van de Zandschulp (qualified)
  4. {{flagicon|ARG}} Pedro Cachin (first round)
  5. {{flagicon|BRA}} Thiago Seyboth Wild (qualifying competition, lucky loser)
  6. {{flagicon|GER}} Dominik Koepfer (qualifying competition)
  7. {{flagicon|FRA}} Arthur Rinderknech (qualifying competition)
  8. {{flagicon|}} Alexander Shevchenko (qualified)

}}

=Qualifiers=

{{columns-list|colwidth=30em|

  1. {{flagicon|AUS}} Christopher O'Connell
  2. {{flagicon|LBN}} Benjamin Hassan
  3. {{flagicon|NED}} Botic van de Zandschulp
  4. {{flagicon|}} Alexander Shevchenko

}}

=Lucky loser=

{{columns-list|colwidth=30em|

  1. {{flagicon|BRA}} Thiago Seyboth Wild

}}

=Qualifying draw=

==First qualifier==

{{4TeamBracket-Tennis3-v2

| RD1=First round

| RD2=Qualifying competition

|team-width=175

| RD1-seed1=1

| RD1-team1={{flagicon|AUS}} Christopher O'Connell

| RD1-score1-1=77

| RD1-score1-2=7

| RD1-score1-3=

| RD1-seed2=

| RD1-team2={{flagicon|USA}} Maxime Cressy

| RD1-score2-1=63

| RD1-score2-2=5

| RD1-score2-3=

| RD1-seed3=

| RD1-team3={{flagicon|USA}} Michael Mmoh

| RD1-score3-1=5

| RD1-score3-2=6

| RD1-score3-3=3

| RD1-seed4=5

| RD1-team4={{flagicon|BRA}} Thiago Seyboth Wild

| RD1-score4-1=7

| RD1-score4-2=4

| RD1-score4-3=6

| RD2-seed1=1

| RD2-team1={{flagicon|AUS}} Christopher O'Connell

| RD2-score1-1=77

| RD2-score1-2=77

| RD2-score1-3=

| RD2-seed2=5

| RD2-team2={{flagicon|BRA}} Thiago Seyboth Wild

| RD2-score2-1=64

| RD2-score2-2=64

| RD2-score2-3=

}}

==Second qualifier==

{{4TeamBracket-Tennis3-v2

| RD1=First round

| RD2=Qualifying competition

|team-width=175

| RD1-seed1=Alt

| RD1-team1={{flagicon|LBN}} Benjamin Hassan

| RD1-score1-1=6

| RD1-score1-2=5

| RD1-score1-3=77

| RD1-seed2=

| RD1-team2={{flagicon|SRB}} Hamad Medjedovic

| RD1-score2-1=2

| RD1-score2-2=7

| RD1-score2-3=63

| RD1-seed3=Alt

| RD1-team3={{flagicon|IND}} Sumit Nagal

| RD1-score3-1=6

| RD1-score3-2=1

| RD1-score3-3=63

| RD1-seed4=6

| RD1-team4={{flagicon|GER}} Dominik Koepfer

| RD1-score4-1=3

| RD1-score4-2=6

| RD1-score4-3=77

| RD2-seed1=Alt

| RD2-team1={{flagicon|LBN}} Benjamin Hassan

| RD2-score1-1=6

| RD2-score1-2=2

| RD2-score1-3=6

| RD2-seed2=6

| RD2-team2={{flagicon|GER}} Dominik Koepfer

| RD2-score2-1=2

| RD2-score2-2=6

| RD2-score2-3=4

}}

==Third qualifier==

{{4TeamBracket-Tennis3-v2

| RD1=First round

| RD2=Qualifying competition

|team-width=175

| RD1-seed1=3

| RD1-team1={{flagicon|NED}} Botic van de Zandschulp

| RD1-score1-1=6

| RD1-score1-2=77

| RD1-score1-3=

| RD1-seed2=WC

| RD1-team2={{flagicon|SUI}} Mika Brunold

| RD1-score2-1=1

| RD1-score2-2=65

| RD1-score2-3=

| RD1-seed3=WC

| RD1-team3={{flagicon|SUI}} Marc-Andrea Hüsler

| RD1-score3-1=4

| RD1-score3-2= 3

| RD1-score3-3=

| RD1-seed4=7

| RD1-team4={{flagicon|FRA}} Arthur Rinderknech

| RD1-score4-1=6

| RD1-score4-2=6

| RD1-score4-3=

| RD2-seed1=3

| RD2-team1={{flagicon|NED}} Botic van de Zandschulp

| RD2-score1-1=77

| RD2-score1-2=6

| RD2-score1-3=

| RD2-seed2=7

| RD2-team2={{flagicon|FRA}} Arthur Rinderknech

| RD2-score2-1=64

| RD2-score2-2=3

| RD2-score2-3=

}}

==Fourth qualifier==

{{4TeamBracket-Tennis3-v2

| RD1=First round

| RD2=Qualifying competition

|team-width=175

| RD1-seed1=4

| RD1-team1={{flagicon|ARG}} Pedro Cachin

| RD1-score1-1=3

| RD1-score1-2=6

| RD1-score1-3=4

| RD1-seed2=WC

| RD1-team2={{flagicon|SUI}} Rémy Bertola

| RD1-score2-1=6

| RD1-score2-2=3

| RD1-score2-3=6

| RD1-seed3=

| RD1-team3={{flagicon|ITA}} Fabio Fognini

| RD1-score3-1=4

| RD1-score3-2=7

| RD1-score3-3=0

| RD1-seed4=8

| RD1-team4={{flagicon|}} Alexander Shevchenko

| RD1-score4-1=6

| RD1-score4-2=5

| RD1-score4-3=6

| RD2-seed1=WC

| RD2-team1={{flagicon|SUI}} Rémy Bertola

| RD2-score1-1=3

| RD2-score1-2=5

| RD2-score1-3=

| RD2-seed2=8

| RD2-team2={{flagicon|}} Alexander Shevchenko

| RD2-score2-1=6

| RD2-score2-2=7

| RD2-score2-3=

}}

References

{{reflist}}