H2H data updated: 2026-09-03 00:00 UTC
Andrej Martin holds a 1–0 lead over Christopher O'Connell in their ATP head-to-head. Across 1 main-draw meeting, Andrej Martin leads 1–0 on clay. Most recently, Andrej Martin won the 2021 Belgrade 2 round of 32 3-6 7-6(7) 7-5.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Andrej Martin | 3-6 7-6(7) 7-5 | Christopher O'Connell | Match data | May 27, 2021* | R32 | Belgrade 2 | ATP 250 | Clay |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Christopher O'Connell | #106 | #53 | 930 | 1,820 | 65 | 99 | 39.6% | 0 | 0 | 0 | 0 | 0 | 0 |
| Andrej Martin | #401 | #93 | 768 | 1,692 | 23 | 32 | 41.8% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Christopher O'Connell | Andrej Martin | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | — | — | — | — | — | — | — | 2010 | 0–1 | 0.0% | #177 | 1,533 | 0 | 0 |
| 23 | 2017 | 0–2 | 0.0% | #393 | 1,524 | 0 | 0 | 2013 | 0–1 | 0.0% | #128 | 1,483 | 0 | 0 |
| 24 | — | — | — | — | — | — | — | 2014 | 0–1 | 0.0% | #179 | 1,537 | 0 | 0 |
| 26 | 2020 | 1–2 | 33.3% | #120 | 1,510 | 0 | 0 | 2016 | 9–4 | 69.2% | #137 | 1,690 | 0 | 0 |
| 27 | 2021 | 4–9 | 30.8% | #175 | 1,660 | 0 | 0 | 2017 | 1–2 | 33.3% | #160 | 1,605 | 0 | 0 |
| 28 | 2022 | 6–12 | 33.3% | #78 | 1,708 | 0 | 0 | 2018 | 3–2 | 60.0% | #183 | 1,584 | 0 | 0 |
| 29 | 2023 | 19–23 | 45.2% | #68 | 1,719 | 0 | 0 | 2019 | 0–1 | 0.0% | #107 | 1,524 | 0 | 0 |
| 30 | 2024 | 17–22 | 43.6% | #64 | 1,741 | 0 | 0 | 2020 | 4–8 | 33.3% | #101 | 1,554 | 0 | 0 |
| 31 | 2025 | 13–21 | 38.2% | #116 | 1,658 | 0 | 0 | 2021 | 6–11 | 35.3% | #116 | 1,598 | 0 | 0 |
| 32 | 2026 | 5–8 | 38.5% | #106 | 1,672 | 0 | 0 | 2022 | 0–1 | 0.0% | #444 | 1,546 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Christopher O'Connell | Andrej Martin | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2010 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2017 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | 2013 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 24 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2014 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 26 | 2020 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | 2016 | 2 | 1 | 3 | 66.7% | 7 | 3 | 10 | 70.0% | — | — | — | — |
| 27 | 2021 | 4 | 6 | 10 | 40.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | 2017 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — |
| 28 | 2022 | 5 | 9 | 14 | 35.7% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | 2018 | — | — | — | — | 3 | 2 | 5 | 60.0% | — | — | — | — |
| 29 | 2023 | 7 | 12 | 19 | 36.8% | 8 | 8 | 16 | 50.0% | 4 | 3 | 7 | 57.1% | 2019 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 30 | 2024 | 17 | 17 | 34 | 50.0% | 0 | 4 | 4 | 0.0% | 0 | 1 | 1 | 0.0% | 2020 | 0 | 2 | 2 | 0.0% | 4 | 6 | 10 | 40.0% | — | — | — | — |
| 31 | 2025 | 10 | 13 | 23 | 43.5% | 3 | 5 | 8 | 37.5% | 0 | 3 | 3 | 0.0% | 2021 | 0 | 3 | 3 | 0.0% | 6 | 8 | 14 | 42.9% | — | — | — | — |
| 32 | 2026 | 5 | 7 | 12 | 41.7% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2022 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | — | 49 | 68 | 117 | 41.9% | 12 | 22 | 34 | 35.3% | 4 | 9 | 13 | 30.8% | — | 2 | 8 | 10 | 20.0% | 21 | 24 | 45 | 46.7% | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 162/164 of Christopher O'Connell's and 52/55 of Andrej Martin's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Christopher O'Connell | Andrej Martin | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 2010 | 1/1 | 0.0 | 2.0 | 67.9% | 60.5% | 38.9% | 42.9% | 100.0% | 53.6% | 30.8% |
| 23 | 2017 | 2/2 | 4.0 | 3.5 | 62.1% | 64.7% | 50.0% | 65.7% | 6.7% | 59.0% | 26.2% | 2013 | 1/1 | 4.0 | 3.0 | 49.1% | 64.8% | 35.7% | 18.2% | 58.3% | 50.0% | 43.6% |
| 24 | — | —/— | — | — | — | — | — | — | — | — | — | 2014 | 1/1 | 1.0 | 2.0 | 64.1% | 61.0% | 52.2% | 50.0% | 28.6% | 57.8% | 38.6% |
| 26 | 2020 | 3/3 | 7.7 | 2.0 | 63.9% | 68.4% | 49.5% | 72.2% | 42.9% | 61.5% | 32.9% | 2016 | 10/13 | 2.8 | 2.4 | 67.9% | 65.6% | 50.6% | 63.1% | 37.1% | 60.9% | 39.7% |
| 27 | 2021 | 13/13 | 8.2 | 1.2 | 62.9% | 75.2% | 52.0% | 60.8% | 40.3% | 66.5% | 32.1% | 2017 | 3/3 | 2.7 | 2.7 | 66.2% | 60.3% | 50.8% | 64.8% | 58.3% | 57.1% | 43.0% |
| 28 | 2022 | 18/18 | 8.3 | 2.6 | 63.4% | 71.2% | 48.3% | 61.9% | 32.8% | 62.7% | 34.7% | 2018 | 5/5 | 3.0 | 2.2 | 61.8% | 69.0% | 49.4% | 59.5% | 55.5% | 61.5% | 42.4% |
| 29 | 2023 | 42/42 | 6.9 | 1.9 | 62.0% | 73.1% | 50.7% | 61.9% | 32.8% | 64.6% | 34.0% | 2019 | 1/1 | 0.0 | 1.0 | 70.9% | 53.8% | 31.3% | 50.0% | 66.7% | 47.3% | 39.0% |
| 30 | 2024 | 39/39 | 7.5 | 2.0 | 59.5% | 73.7% | 50.7% | 61.7% | 34.2% | 64.3% | 33.4% | 2020 | 12/12 | 2.2 | 1.9 | 64.8% | 63.2% | 51.7% | 64.4% | 38.2% | 59.2% | 38.9% |
| 31 | 2025 | 33/34 | 6.3 | 1.8 | 59.5% | 68.7% | 49.2% | 60.6% | 30.5% | 60.5% | 34.2% | 2021 | 17/17 | 2.2 | 3.1 | 60.8% | 59.6% | 48.6% | 51.5% | 43.0% | 55.5% | 39.7% |
| 32 | 2026 | 12/13 | 8.6 | 1.5 | 56.7% | 71.8% | 47.5% | 57.3% | 39.4% | 61.2% | 31.1% | 2022 | 1/1 | 1.0 | 1.0 | 63.9% | 64.1% | 50.0% | 0.0% | 0.0% | 59.0% | 29.1% |
| Career | — | 162/164 | 7.3 | 1.9 | 60.8% | 72.0% | 50.0% | 61.4% | 33.6% | 63.2% | 33.5% | — | 52/55 | 2.3 | 2.5 | 63.7% | 62.7% | 49.2% | 56.4% | 43.6% | 57.9% | 39.6% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Christopher O'Connell | Andrej Martin | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2010 | 1534 | 101.9 | +4.04 | -2.61 | 0.663 | 42.6% | — | — | — | 0.0% | -3.00 | — | — | — | -0.15 |
| 21 | 2015 | 1495 | 104.2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2011 | 1515 | 106.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2017 | 1525 | 115.5 | -0.12 | -0.17 | 0.638 | 43.9% | — | — | — | 16.7% | -2.17 | 0–1 | 1–1 | — | -0.10 | 2013 | 1484 | 99.1 | -0.23 | -1.09 | 0.873 | 46.8% | — | — | — | 0.0% | -1.67 | — | 0–1 | — | +0.11 |
| 24 | 2018 | 1518 | 105.8 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2014 | 1538 | 111.4 | +2.24 | -1.88 | 0.914 | 46.9% | — | — | — | 0.0% | -2.00 | — | 0–1 | — | -0.12 |
| 25 | 2019 | 1494 | 99.2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2015 | 1500 | 96.9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2020 | 1510 | 117.0 | +2.22 | +2.41 | 0.854 | 48.6% | +35 | — | — | 36.4% | -0.55 | — | 1–1 | — | -0.18 | 2016 | 1691 | 131.5 | -0.91 | +0.89 | 1.013 | 49.9% | — | +55 | — | 60.0% | +0.43 | 2–0 | 3–1 (75%) | — | +0.28 |
| 27 | 2021 | 1661 | 126.7 | +0.93 | -2.95 | 0.959 | 49.2% | -16 | — | — | 43.9% | -0.29 | 2–7 (22%) | 7–6 (54%) | — | -0.33 | 2017 | 1605 | 101.7 | -2.56 | +0.50 | 1.001 | 50.5% | — | +66 | — | 42.9% | +0.14 | 0–1 | 0–1 | — | +0.18 |
| 28 | 2022 | 1708 | 136.6 | -1.02 | -1.54 | 0.930 | 48.9% | -4 | -132 | — | 42.6% | -0.43 | 1–5 (17%) | 8–6 (57%) | — | -0.26 | 2018 | 1585 | 110.3 | -0.25 | +0.33 | 1.100 | 51.7% | — | +71 | — | 63.6% | +0.45 | 0–1 | — | — | +0.83 |
| 29 | 2023 | 1720 | 137.5 | +0.91 | -1.80 | 0.960 | 49.3% | -32 | -99 | +28 | 45.4% | -0.32 | 7–8 (47%) | 16–12 (57%) | — | -1.95 | 2019 | 1524 | 100.6 | +1.12 | -2.55 | 0.739 | 43.0% | — | — | — | 0.0% | -3.50 | — | — | — | +0.09 |
| 30 | 2024 | 1742 | 145.4 | -0.18 | -0.88 | 0.933 | 49.0% | +1 | -145 | — | 45.7% | -0.29 | 2–4 (33%) | 7–8 (47%) | — | -1.68 | 2020 | 1554 | 121.3 | -1.24 | -0.15 | 0.953 | 49.2% | — | +67 | — | 41.9% | -0.42 | 0–4 (0%) | 2–3 (40%) | — | +0.02 |
| 31 | 2025 | 1659 | 134.1 | -2.50 | -1.21 | 0.866 | 47.8% | +93 | -88 | -11 | 38.7% | -0.73 | 4–4 (50%) | 5–9 (36%) | — | -0.58 | 2021 | 1598 | 118.8 | -4.79 | +2.03 | 0.892 | 47.5% | -146 | +68 | — | 32.6% | -1.23 | 5–2 (71%) | 4–4 (50%) | — | +0.36 |
| 32 | 2026 | 1672 | 124.8 | -2.11 | -2.73 | 0.800 | 46.8% | +75 | — | — | 33.3% | -1.22 | 1–2 (33%) | 4–3 (57%) | — | -0.23 | 2022 | 1547 | 107.1 | +0.80 | -2.75 | 0.710 | 44.8% | — | — | — | 0.0% | -2.50 | — | — | — | -0.01 |
| 35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2025 | 1536 | 101.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1821 | 140.3 | -0.47 | -1.49 | 0.911 | 48.6% | +20 | -105 | +16 | 42.3% | -0.49 | 17–31 (35%) | 49–46 (52%) | 98.0 | -3.28 | — | 1692 | 118.6 | -2.05 | +0.65 | 0.940 | 48.7% | -146 | +65 | — | 41.4% | -0.56 | 7–8 (47%) | 9–11 (45%) | 100.8 | +2.94 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Taylor Fritz | 0 | 4 | 4 | Aug 19, 2026 | H2H |
| Grigor Dimitrov | 1 | 3 | 4 | Feb 26, 2025 | H2H |
| Marton Fucsovics | 0 | 3 | 3 | Mar 20, 2026 | H2H |
| Ugo Humbert | 1 | 2 | 3 | Feb 13, 2026 | H2H |
| Roberto Bautista Agut | 1 | 2 | 3 | Feb 2, 2026 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Joao Sousa | 2 | 0 | 2 | Sep 29, 2020 | H2H |
| Cristian Garin | 0 | 2 | 2 | Feb 20, 2020 | H2H |
| Corentin Moutet | 2 | 0 | 2 | Feb 8, 2020 | H2H |
| Roberto Carballes Baena | 0 | 2 | 2 | Feb 7, 2019 | H2H |
| Victor Estrella | 0 | 2 | 2 | Feb 9, 2017 | — |