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ATPWorld No. 117

🇦🇺Christopher O'Connell

57 wins, 81 losses

Cincinnati Open 202611 Aug 2026Masters 1000

Round of 16lost to Taylor Fritz6-4 6-3
Round of 32def. Joao FonsecaW/O
Round of 64def. Casper Ruud7-5 1-2 RET
Round of 128def. Kamil Majchrzak6-4 7-6(5)

National Bank Open 20261 Aug 2026Masters 1000

Round of 128lost to James Duckworth6-3 6-1

Tiriac Open 202630 Mar 2026ATP 250

Round of 32lost to Mariano Navone6-4 7-6(8)

Miami Open 202616 Mar 2026Masters 1000

Round of 128lost to Marton Fucsovics7-6(6) 6-3

Indian Wells Open 20262 Mar 2026Masters 1000

Round of 128lost to Marton Fucsovics7-5 6-3

ABN AMRO Open 20269 Feb 2026ATP 500

Quarterfinallost to Ugo Humbert6-4 6-1
Round of 16def. Cameron Norrie7-6(9) 6-4
Round of 32def. Valentin Royer6-4 4-6 7-6(4)

Open Occitanie 20262 Feb 2026ATP 250

Round of 32lost to Roberto Bautista Agut5-7 6-3 7-5

Australian Open 202619 Jan 2026Grand Slam

Round of 128lost to Nishesh Basavareddy4-6 7-6(7) 6-7(3) 6-2 6-3

Rolex Shanghai Masters 202529 Sep 2025Masters 1000

Round of 64lost to Denis Shapovalov6-3 6-2
Round of 128def. Damir Dzumhur6-2 6-4

Chengdu Open 202515 Sep 2025ATP 250

Quarterfinallost to Alejandro Tabilo4-6 7-5 6-2
Round of 16def. Yi Zhou6-2 6-4
Round of 32def. Quentin Halys6-7(3) 6-3 6-4

US Open 202525 Aug 2025Grand Slam

Round of 128lost to Alex de Minaur6-3 6-4 6-4

Winston-Salem Open 202518 Aug 2025ATP 250

Round of 32lost to Roberto Bautista Agut6-4 RET
Round of 64def. Roman Safiullin6-3 6-3

National Bank Open 202528 Jul 2025Masters 1000

Round of 32lost to Alex de MinaurW/O
Round of 64def. Stefanos Tsitsipas6-4 4-6 6-2
Round of 128def. Chun Hsin Tseng6-1 6-2

Mubadala DC Open 202521 Jul 2025ATP 500

Round of 64lost to Ethan Quinn6-3 6-2

Wimbledon 202530 Jun 2025Grand Slam

Round of 128lost to Adrian Mannarino6-2 6-4 6-3

Queen's Club Championships 202516 Jun 2025ATP 500

Round of 32lost to Holger Rune6-3 6-4

Libema Open 20259 Jun 2025ATP 250

Round of 32lost to Adrian Mannarino6-1 6-3

Roland-Garros 202526 May 2025Grand Slam

Round of 128lost to Ugo Humbert7-5 6-3 7-6(3)

Internazionali BNL d'Italia 20255 May 2025Masters 1000

Round of 128lost to Cameron Norrie6-3 6-2

Mutua Madrid Open 202521 Apr 2025Masters 1000

Round of 64lost to Taylor Fritz6-1 6-4
Round of 128def. Camilo Ugo Carabelli6-3 6-4

BMW Open 202514 Apr 2025ATP 500

Round of 32lost to Luciano Darderi7-6(3) 7-6(3)

Tiriac Open 202531 Mar 2025ATP 250

Quarterfinallost to Marton Fucsovics6-0 6-4
Round of 16def. Nicolas Jarry6-2 5-7 7-6(5)
Round of 32def. Dusan Lajovic6-4 6-3

Miami Open 202517 Mar 2025Masters 1000

Round of 128lost to Roberto Carballes Baena6-3 3-6 7-6(5)

Indian Wells Open 20253 Mar 2025Masters 1000

Round of 64lost to Matteo Berrettini6-2 7-6(2)
Round of 128def. Roberto Carballes Baena6-3 0-6 6-1

Dubai Duty Free Tennis Championships 202524 Feb 2025ATP 500

Round of 16lost to Matteo Berrettini7-6(2) 6-2
Round of 32def. Grigor Dimitrov6-0 RET

Qatar Open 202517 Feb 2025ATP 500

Round of 16lost to Jack Draper6-2 6-1
Round of 32def. Hady Habib7-6(7) 7-6(3)

Australian Open 202513 Jan 2025Grand Slam

Round of 128lost to Tommy Paul6-2 3-6 6-1 6-7(5) 7-5

Adelaide International 20256 Jan 2025ATP 250

Round of 16lost to Miomir Kecmanovic7-6(1) 6-2
Round of 32def. Arthur Rinderknech7-5 7-6(5)

Brisbane International 20251 Jan 2025ATP 250

Round of 32lost to Alex Michelsen6-4 4-6 7-6(10)

Belgrade 20244 Nov 2024ATP 250

Quarterfinallost to Denis Shapovalov6-2 6-2
Round of 16def. Daniel Altmaier6-3 6-1
Round of 32def. Miomir Kecmanovic6-1 6-1

Rolex Paris Masters 202428 Oct 2024Masters 1000

Round of 64lost to Karen Khachanov6-4 3-6 7-6(6)

Almaty Open 202414 Oct 2024ATP 250

Round of 32lost to Gabriel Diallo7-6(5) 6-2

Rolex Shanghai Masters 202430 Sep 2024Masters 1000

Round of 128lost to Matteo Berrettini7-6(9) 7-6(6)

Japan Open Tennis Championships 202423 Sep 2024ATP 500

Round of 16lost to Alex Michelsen6-1 6-4
Round of 32def. Tomas Martin Etcheverry6-4 7-6(5)

Chengdu Open 202416 Sep 2024ATP 250

Round of 16lost to Lorenzo Musetti6-7(5) 6-4 7-6(4)
Round of 32def. Pavel Kotov6-4 7-5

US Open 202426 Aug 2024Grand Slam

Round of 32lost to Jannik Sinner6-1 6-4 6-2
Round of 64def. Mattia Bellucci6-3 6-4 3-6 6-3
Round of 128def. Nicolas Jarry6-4 6-3 4-6 6-3

Winston-Salem Open 202419 Aug 2024ATP 250

Round of 32lost to Arthur Rinderknech6-3 6-4
Round of 64def. Strong Kirchheimer7-5 6-4

Mubadala DC Open 202429 Jul 2024ATP 500

Round of 32lost to Brandon Nakashima6-2 6-2
Round of 64def. Harold Mayot6-4 7-6(3)

Atlanta 202422 Jul 2024ATP 250

Round of 32lost to Max Purcell4-6 7-5 6-2

Wimbledon 20241 Jul 2024Grand Slam

Round of 128lost to Taylor Fritz6-1 6-2 6-4

Internazionali BNL d'Italia 20246 May 2024Masters 1000

Round of 128lost to Roberto Carballes Baena6-7(7) 5-0 RET

Mutua Madrid Open 202422 Apr 2024Masters 1000

Round of 128lost to Matteo Arnaldi6-4 6-1

BMW Open 202415 Apr 2024ATP 250

Round of 32lost to Taro Daniel6-3 6-4

Rolex Monte-Carlo Masters 20248 Apr 2024Masters 1000

Round of 64lost to Alejandro Tabilo6-3 6-4

Miami Open 202418 Mar 2024Masters 1000

Round of 16lost to Jannik Sinner6-4 6-3
Round of 32def. Martin Damm7-6(5) 7-6(5)
Round of 64def. Frances Tiafoe7-5 7-6(5)
Round of 128def. Vit Kopriva6-2 6-4

Indian Wells Open 20244 Mar 2024Masters 1000

Round of 64lost to Alexander Zverev6-4 6-4
Round of 128def. Jack Draper1-6 6-3 6-2

Dubai Duty Free Tennis Championships 202426 Feb 2024ATP 500

Round of 16lost to Hubert Hurkacz7-6(5) 6-4
Round of 32def. Maximilian Marterer6-2 6-4

Qatar Open 202419 Feb 2024ATP 250

Round of 16lost to Emil Ruusuvuori6-3 6-3
Round of 32def. Jan-Lennard Struff6-4 6-4

Australian Open 202415 Jan 2024Grand Slam

Round of 64lost to Ben Shelton6-4 6-1 3-6 7-6(5)
Round of 128def. Cristian Garin3-6 7-5 4-6 6-1 7-5

Adelaide International 20248 Jan 2024ATP 250

Quarterfinallost to Sebastian Korda6-4 6-4
Round of 16def. Alexander Shevchenko6-3 6-1
Round of 32def. Arthur Rinderknech6-4 6-4

Brisbane International 20241 Jan 2024ATP 250

Round of 32lost to Alexei Popyrin6-4 6-7(5) 7-6(4)

Sofia 20236 Nov 2023ATP 250

Round of 16lost to Sebastian Ofner6-7(6) 6-4 6-2
Round of 32def. Hamad Medjedovic6-7(3) 6-1 7-6(2)

Swiss Indoors 202323 Oct 2023ATP 500

Round of 32lost to Sebastian Baez6-7(3) 6-4 6-3

Japan Open Tennis Championships 202316 Oct 2023ATP 500

Round of 32lost to Sebastian Ofner6-7(2) 7-6(5) 7-5

Rolex Shanghai Masters 20232 Oct 2023Masters 1000

Round of 128lost to Botic Van De Zandschulp6-2 6-7(2) 6-4

Chengdu Open 202318 Sep 2023ATP 250

Quarterfinallost to Grigor Dimitrov6-4 6-1
Round of 16def. Taro Daniel7-6(10) 6-4
Round of 32def. Alibek Kachmazov7-6(3) 6-4

US Open 202328 Aug 2023Grand Slam

Round of 64lost to Daniil Medvedev6-2 6-2 6-7(6) 6-2
Round of 128def. Max Purcell6-4 6-3 3-6 7-6(5)

Generali Open 202331 Jul 2023ATP 250

Round of 32lost to Laslo Djere6-4 7-6(4)

Croatia Open 202324 Jul 2023ATP 250

Round of 32lost to Zsombor Piros6-3 6-4

Wimbledon 20233 Jul 2023Grand Slam

Round of 32lost to Christopher Eubanks7-6(5) 7-6(3) 7-6(2)
Round of 64def. Jiri Vesely6-3 7-5 6-4
Round of 128def. Hamad Medjedovic7-5 6-4 4-6 6-4

Mallorca Championships 202326 Jun 2023ATP 250

Round of 32lost to Corentin Moutet7-5 6-4

Boss Open 202312 Jun 2023ATP 250

Quarterfinallost to Hubert Hurkacz6-4 6-4
Round of 16def. Lorenzo Sonego7-6(5) 6-3
Round of 32def. Daniel Altmaier6-3 6-1

Roland-Garros 202329 May 2023Grand Slam

Round of 128lost to Taro Daniel6-0 6-2 6-4

Geneva Open 202322 May 2023ATP 250

Quarterfinallost to Grigor Dimitrov6-7(5) 7-5 6-4
Round of 16def. Bernabe Zapata Miralles6-0 3-0 RET
Round of 32def. Nino Serdarusic7-6(5) 6-7(1) 6-1

Internazionali BNL d'Italia 20238 May 2023Masters 1000

Round of 128lost to Alexei Popyrin6-2 7-6(5)

Mutua Madrid Open 202324 Apr 2023Masters 1000

Round of 64lost to Taylor Fritz7-6(11) 6-4
Round of 128def. Filip Krajinovic6-4 6-7(2) 6-2

BMW Open 202317 Apr 2023ATP 250

Semifinallost to Holger Rune6-3 6-2
Quarterfinaldef. Flavio Cobolli7-6(5) 4-6 6-3
Round of 16def. Alexander Zverev7-6(2) 6-4
Round of 32def. Ugo Humbert6-4 6-4

Grand Prix Hassan II 20233 Apr 2023ATP 250

Quarterfinallost to Pavel Kotov6-3 6-7(6) 7-6(3)
Round of 16def. Botic Van De Zandschulp6-7(8) 6-4 6-0
Round of 32def. Riccardo Bonadio7-5 6-4

Miami Open 202320 Mar 2023Masters 1000

Round of 128lost to Richard Gasquet6-4 3-6 6-1

Dubai Duty Free Tennis Championships 202327 Feb 2023ATP 500

Round of 16lost to Alexander Zverev7-5 6-4
Round of 32def. Emil Ruusuvuori7-5 6-4

Qatar Open 202320 Feb 2023ATP 250

Quarterfinallost to Daniil Medvedev6-2 4-6 7-5
Round of 16def. Roberto Bautista Agut3-6 7-6(5) 6-4
Round of 32def. Fernando Verdasco6-1 3-6 6-0

Australian Open 202316 Jan 2023Grand Slam

Round of 128lost to Jenson Brooksby3-6 6-2 6-3 6-2

Adelaide International 20239 Jan 2023ATP 250

Round of 32lost to Tommy Paul6-4 7-5

Adelaide 1 20232 Jan 2023ATP 250

Round of 32lost to Miomir Kecmanovic6-4 6-4

US Open 202229 Aug 2022Grand Slam

Round of 128lost to James Duckworth4-6 7-6(0) 6-2 6-3

Roland-Garros 202223 May 2022Grand Slam

Round of 128lost to Aljaz Bedene6-2 6-4 6-7(5) 6-1

Australian Open 202217 Jan 2022Grand Slam

Round of 32lost to Maxime Cressy6-2 6-7(6) 6-3 6-2
Round of 64def. Diego Sebastian Schwartzman7-6(6) 6-4 6-4
Round of 128def. Hugo Gaston7-6(4) 6-0 4-6 6-1

Wimbledon 202128 Jun 2021Grand Slam

Round of 128lost to Gael Monfils4-6 6-2 7-6(5) 4-6 6-4

Roland-Garros 202131 May 2021Grand Slam

Round of 128lost to Tommy Paul6-2 6-4 4-6 4-6 10-8

Australian Open 20218 Feb 2021Grand Slam

Round of 64lost to Radu Albot6-2 7-5 7-6(8)
Round of 128def. Jan-Lennard Struff7-6(2) 7-6(5) 6-1

Australian Open 202020 Jan 2020Grand Slam

Round of 128lost to Andrey Rublev6-3 0-6 6-4 7-6(5)