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%
17 qualifying matches shown below; qualifying is excluded from main-draw summaries and leaderboards.
| Date ↓ | Tournament | Category | Round | Surface | Opponent | Score | Result | H2H | Match |
|---|---|---|---|---|---|---|---|---|---|
| Aug 31, 2021* | US Open | Grand Slam | Q2 | Hard | Mats Moraing | 6-7(3) 1-6 | L | H2H | Match data |
| Aug 30, 2021 | US Open | Grand Slam | Q1 | Hard | Altug Celikbilek | 6-2 6-4 | W | H2H | Match data |
| Jul 31, 2021* | Atlanta | ATP 250 | QF | Hard | John Isner | 6-7(5) 7-6(3) 4-6 | L | H2H | Match data |
| Jul 30, 2021* | Atlanta | ATP 250 | R16 | Hard | Jannik Sinner | 7-6(7) 6-4 | W | H2H | Match data |
| Jul 29, 2021* | Atlanta | ATP 250 | R32 | Hard | Denis Kudla | 4-6 6-3 6-3 | W | H2H | Match data |
| Jul 26, 2021 | Atlanta | ATP 250 | Q2 | Hard | Sebastian Ofner | 4-2 (ret.) | W | H2H | Match data |
| Jul 26, 2021 | Atlanta | ATP 250 | Q1 | Hard | Yosuke Watanuki | 7-5 6-4 | W | H2H | Match data |
| Jul 12, 2021 | Hamburg | ATP 500 | Q2 | Clay | Alex Molcan | 3-6 7-5 3-6 | L | H2H | Match data |
| Jul 12, 2021 | Hamburg | ATP 500 | Q1 | Clay | Ernests Gulbis | 6-3 6-0 | W | H2H | Match data |
| Jun 30, 2021* | Wimbledon | Grand Slam | R128 | Grass | Gael Monfils | 6-4 2-6 6-7(5) 6-4 4-6 | L | H2H | Match data |
| Jun 29, 2021* | Wimbledon | Grand Slam | Q3 | Grass | Tomas Machac | 7-6(6) 6-4 7-6(4) | W | H2H | Match data |
| Jun 29, 2021* | Wimbledon | Grand Slam | Q2 | Grass | Ruben Bemelmans | 6-7(3) 6-3 7-5 | W | H2H | Match data |
| Jun 28, 2021 | Wimbledon | Grand Slam | Q1 | Grass | Filip Horansky | 3-6 6-1 9-7 | W | H2H | Match data |
| Jun 14, 2021 | Halle | ATP 500 | Q2 | Grass | Arthur Rinderknech | 6-3 4-6 2-6 | L | H2H | Match data |
| Jun 14, 2021 | Halle | ATP 500 | Q1 | Grass | Radu Albot | 4-6 6-3 7-5 | W | H2H | Match data |
| Jun 8, 2021* | Stuttgart | ATP 250 | Q1 | Grass | Radu Albot | 3-6 0-0 (ret.) | L | H2H | Match data |
| Jun 1, 2021* | Roland Garros | Grand Slam | R128 | Clay | Tommy Paul | 2-6 4-6 6-4 6-4 8-10 | L | H2H | Match data |
| May 27, 2021* | Belgrade 2 | ATP 250 | R32 | Clay | Andrej Martin | 6-3 6-7(7) 5-7 | L | H2H | Match data |
| May 24, 2021 | Belgrade 2 | ATP 250 | Q2 | Clay | Lukas Klein | 7-6(7) 7-5 | W | H2H | Match data |
| May 24, 2021 | Belgrade 2 | ATP 250 | Q1 | Clay | Darian King | 6-1 6-3 | W | H2H | Match data |
| Mar 26, 2021* | Miami Masters | Masters 1000 | R128 | Hard | Joao Sousa | 6-7(6) 7-6(8) 5-7 | L | H2H | Match data |
| Mar 16, 2021* | Dubai | ATP 500 | R64 | Hard | Lloyd Harris | 7-6(5) 4-6 1-6 | L | H2H | Match data |
| Mar 14, 2021* | Dubai | ATP 500 | Q2 | Hard | Thomas Fabbiano | 6-2 6-4 | W | H2H | Match data |
| Mar 14, 2021* | Dubai | ATP 500 | Q1 | Hard | Cem Ilkel | 6-3 6-4 | W | H2H | Match data |
| Mar 10, 2021* | Doha | ATP 250 | R32 | Hard | Vasek Pospisil | 3-6 4-6 | L | H2H | Match data |
| Mar 8, 2021 | Doha | ATP 250 | Q2 | Hard | Thomas Fabbiano | 6-3 7-6(7) | W | H2H | Match data |
| Feb 11, 2021* | Australian Open | Grand Slam | R64 | Hard | Radu Albot | 2-6 5-7 6-7(8) | L | H2H | Match data |
| Feb 10, 2021* | Australian Open | Grand Slam | R128 | Hard | Jan-Lennard Struff | 7-6(2) 7-6(5) 6-1 | W | H2H | Match data |
| Feb 4, 2021* | Great Ocean Road Open | ATP 250 | R32 | Hard | Alexander Bublik | 6-7(2) 7-6(6) 4-6 | L | H2H | Match data |
| Feb 3, 2021* | Great Ocean Road Open | ATP 250 | R64 | Hard | Dominik Koepfer | 5-7 6-4 6-1 | W | H2H | Match data |