Match log updated: 2026-05-28 18:14 UTC
Christopher O'Connell — ATP Match Log
Main draw matches: 13 | W: 4 | L: 9 | Win %: 30.8%
| Opponent | Score | Result | H2H | Match Data | Date ↓ | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Mats Moraing | 6-7(3) 1-6 | L | H2H | Match data | Aug 31, 2021* | Q2 | US Open | Grand Slam | Hard |
| Altug Celikbilek | 6-2 6-4 | W | H2H | Match data | Aug 30, 2021 | Q1 | US Open | Grand Slam | Hard |
| John Isner | 6-7(5) 7-6(3) 4-6 | L | H2H | Match data | Jul 31, 2021* | QF | Atlanta | ATP 250 | Hard |
| Jannik Sinner | 7-6(7) 6-4 | W | H2H | Match data | Jul 30, 2021* | R16 | Atlanta | ATP 250 | Hard |
| Denis Kudla | 4-6 6-3 6-3 | W | H2H | Match data | Jul 29, 2021* | R32 | Atlanta | ATP 250 | Hard |
| Sebastian Ofner | 4-2 (ret.) | W | H2H | Match data | Jul 26, 2021 | Q2 | Atlanta | ATP 250 | Hard |
| Yosuke Watanuki | 7-5 6-4 | W | H2H | Match data | Jul 26, 2021 | Q1 | Atlanta | ATP 250 | Hard |
| Alex Molcan | 3-6 7-5 3-6 | L | H2H | Match data | Jul 12, 2021 | Q2 | Hamburg Open | ATP 500 | Clay |
| Ernests Gulbis | 6-3 6-0 | W | H2H | Match data | Jul 12, 2021 | Q1 | Hamburg Open | ATP 500 | Clay |
| Gael Monfils | 6-4 2-6 6-7(5) 6-4 4-6 | L | H2H | Match data | Jun 30, 2021* | R128 | Wimbledon | Grand Slam | Grass |
| Tomas Machac | 7-6(6) 6-4 7-6(4) | W | H2H | Match data | Jun 29, 2021* | Q3 | Wimbledon | Grand Slam | Grass |
| Ruben Bemelmans | 6-7(3) 6-3 7-5 | W | H2H | Match data | Jun 29, 2021* | Q2 | Wimbledon | Grand Slam | Grass |
| Filip Horansky | 3-6 6-1 9-7 | W | H2H | Match data | Jun 28, 2021 | Q1 | Wimbledon | Grand Slam | Grass |
| Arthur Rinderknech | 6-3 4-6 2-6 | L | H2H | Match data | Jun 14, 2021 | Q2 | Halle Open | ATP 500 | Grass |
| Radu Albot | 4-6 6-3 7-5 | W | H2H | Match data | Jun 14, 2021 | Q1 | Halle Open | ATP 500 | Grass |
| Radu Albot | 3-6 0-0 (ret.) | L | H2H | Match data | Jun 8, 2021* | Q1 | Stuttgart Open | ATP 250 | Grass |
| Tommy Paul | 2-6 4-6 6-4 6-4 8-10 | L | H2H | Match data | Jun 1, 2021* | R128 | Roland Garros | Grand Slam | Clay |
| Andrej Martin | 6-3 6-7(7) 5-7 | L | H2H | Match data | May 27, 2021* | R32 | Belgrade 2 | ATP 250 | Clay |
| Lukas Klein | 7-6(7) 7-5 | W | H2H | Match data | May 24, 2021 | Q2 | Belgrade 2 | ATP 250 | Clay |
| Darian King | 6-1 6-3 | W | H2H | Match data | May 24, 2021 | Q1 | Belgrade 2 | ATP 250 | Clay |
| Joao Sousa | 6-7(6) 7-6(8) 5-7 | L | H2H | Match data | Mar 26, 2021* | R128 | Miami Open | Masters 1000 | Hard |
| Lloyd Harris | 7-6(5) 4-6 1-6 | L | H2H | Match data | Mar 16, 2021* | R64 | Dubai Tennis Championships | ATP 500 | Hard |
| Thomas Fabbiano | 6-2 6-4 | W | H2H | Match data | Mar 14, 2021* | Q2 | Dubai Tennis Championships | ATP 500 | Hard |
| Cem Ilkel | 6-3 6-4 | W | H2H | Match data | Mar 14, 2021* | Q1 | Dubai Tennis Championships | ATP 500 | Hard |
| Vasek Pospisil | 3-6 4-6 | L | H2H | Match data | Mar 10, 2021* | R32 | Qatar Open | ATP 250 | Hard |
| Thomas Fabbiano | 6-3 7-6(7) | W | H2H | Match data | Mar 8, 2021 | Q2 | Qatar Open | ATP 250 | Hard |
| Radu Albot | 2-6 5-7 6-7(8) | L | H2H | Match data | Feb 11, 2021* | R64 | Australian Open | Grand Slam | Hard |
| Jan-Lennard Struff | 7-6(2) 7-6(5) 6-1 | W | H2H | Match data | Feb 10, 2021* | R128 | Australian Open | Grand Slam | Hard |
| Alexander Bublik | 6-7(2) 7-6(6) 4-6 | L | H2H | Match data | Feb 4, 2021* | R32 | Adelaide International | ATP 250 | Hard |
| Dominik Koepfer | 5-7 6-4 6-1 | W | H2H | Match data | Feb 3, 2021* | R64 | Adelaide International | ATP 250 | Hard |
17 qualifying matches shown in the table; qualifying is excluded from main-draw summaries and leaderboards. Estimated from the tournament schedule where an exact match date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Mapping details.