H2H data updated: 2026-09-01 00:00 UTC
Reilly Opelka holds a 1–0 lead over Christopher O'Connell in their ATP head-to-head. Across 1 main-draw meeting, Reilly Opelka leads 1–0 on clay. Most recently, Reilly Opelka won the 2022 Geneva Open second round 6-3 7-5.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Reilly Opelka | 6-3 7-5 | Christopher O'Connell | Match data | May 19, 2022* | R16 | Geneva Open | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reilly Opelka | #153 | #17 | 2,475 | 1,972 | 124 | 119 | 51.0% | 0 | 0 | 0 | 0 | 4 | 4 |
| Christopher O'Connell | #106 | #53 | 930 | 1,820 | 65 | 99 | 39.6% | 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 | Reilly Opelka | Christopher O'Connell | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 2016 | 5–5 | 50.0% | #204 | 1,592 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2017 | 1–8 | 11.1% | #229 | 1,551 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2018 | 2–2 | 50.0% | #99 | 1,540 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 2019 | 27–21 | 56.2% | #36 | 1,850 | 0 | 1 | — | — | — | — | — | — | — |
| 22 | 2020 | 11–8 | 57.9% | #39 | 1,850 | 0 | 2 | — | — | — | — | — | — | — |
| 23 | 2021 | 21–21 | 50.0% | #26 | 1,862 | 0 | 2 | 2017 | 0–2 | 0.0% | #393 | 1,524 | 0 | 0 |
| 24 | 2022 | 21–15 | 58.3% | #38 | 1,820 | 0 | 4 | — | — | — | — | — | — | — |
| 26 | 2024 | 5–8 | 38.5% | #293 | 1,714 | 0 | 4 | 2020 | 1–2 | 33.3% | #120 | 1,510 | 0 | 0 |
| 27 | 2025 | 25–23 | 52.1% | #52 | 1,755 | 0 | 4 | 2021 | 4–9 | 30.8% | #175 | 1,660 | 0 | 0 |
| 28 | 2026 | 6–8 | 42.9% | #153 | 1,717 | 0 | 4 | 2022 | 6–12 | 33.3% | #78 | 1,708 | 0 | 0 |
| 29 | — | — | — | — | — | — | — | 2023 | 19–23 | 45.2% | #68 | 1,719 | 0 | 0 |
| 30 | — | — | — | — | — | — | — | 2024 | 17–22 | 43.6% | #64 | 1,741 | 0 | 0 |
| 31 | — | — | — | — | — | — | — | 2025 | 13–21 | 38.2% | #116 | 1,658 | 0 | 0 |
| 32 | — | — | — | — | — | — | — | 2026 | 5–8 | 38.5% | #106 | 1,672 | 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 | Reilly Opelka | Christopher O'Connell | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 18 | 2016 | 5 | 4 | 9 | 55.6% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2017 | 1 | 6 | 7 | 14.3% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 23 | 13 | 36 | 63.9% | 2 | 6 | 8 | 25.0% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2020 | 11 | 7 | 18 | 61.1% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2021 | 15 | 15 | 30 | 50.0% | 6 | 4 | 10 | 60.0% | 0 | 2 | 2 | 0.0% | 2017 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 24 | 2022 | 14 | 7 | 21 | 66.7% | 6 | 5 | 11 | 54.5% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2024 | 2 | 7 | 9 | 22.2% | — | — | — | — | 3 | 1 | 4 | 75.0% | 2020 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 27 | 2025 | 17 | 15 | 32 | 53.1% | 2 | 4 | 6 | 33.3% | 6 | 4 | 10 | 60.0% | 2021 | 4 | 6 | 10 | 40.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% |
| 28 | 2026 | 6 | 5 | 11 | 54.5% | 0 | 3 | 3 | 0.0% | — | — | — | — | 2022 | 5 | 9 | 14 | 35.7% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 7 | 12 | 19 | 36.8% | 8 | 8 | 16 | 50.0% | 4 | 3 | 7 | 57.1% |
| 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2024 | 17 | 17 | 34 | 50.0% | 0 | 4 | 4 | 0.0% | 0 | 1 | 1 | 0.0% |
| 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2025 | 10 | 13 | 23 | 43.5% | 3 | 5 | 8 | 37.5% | 0 | 3 | 3 | 0.0% |
| 32 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 5 | 7 | 12 | 41.7% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | — | 96 | 81 | 177 | 54.2% | 16 | 25 | 41 | 39.0% | 12 | 13 | 25 | 48.0% | — | 49 | 68 | 117 | 41.9% | 12 | 22 | 34 | 35.3% | 4 | 9 | 13 | 30.8% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 242/244 of Reilly Opelka's and 162/164 of Christopher O'Connell'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 | Reilly Opelka | Christopher O'Connell | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 18 | 2016 | 10/10 | 13.4 | 3.9 | 58.1% | 79.4% | 61.2% | 81.0% | 20.1% | 71.7% | 27.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 19 | 2017 | 9/9 | 17.6 | 4.7 | 58.9% | 74.7% | 55.2% | 62.3% | 31.1% | 66.5% | 27.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 4/4 | 16.5 | 5.8 | 56.7% | 80.1% | 56.2% | 60.9% | 21.1% | 69.7% | 30.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 48/48 | 21.1 | 3.2 | 64.3% | 80.8% | 54.7% | 61.2% | 31.6% | 71.5% | 27.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2020 | 19/19 | 19.7 | 2.6 | 65.2% | 80.9% | 52.3% | 66.6% | 45.5% | 71.0% | 27.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2021 | 42/42 | 17.3 | 2.4 | 65.3% | 77.3% | 55.6% | 62.8% | 42.2% | 69.8% | 28.4% | 2017 | 2/2 | 4.0 | 3.5 | 62.1% | 64.7% | 50.0% | 65.7% | 6.7% | 59.0% | 26.2% |
| 24 | 2022 | 36/36 | 15.9 | 2.1 | 64.9% | 79.7% | 58.0% | 67.8% | 31.2% | 72.0% | 28.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2024 | 13/13 | 17.1 | 3.7 | 61.4% | 78.6% | 49.5% | 64.6% | 26.7% | 67.4% | 28.6% | 2020 | 3/3 | 7.7 | 2.0 | 63.9% | 68.4% | 49.5% | 72.2% | 42.9% | 61.5% | 32.9% |
| 27 | 2025 | 47/48 | 16.3 | 4.1 | 63.7% | 78.5% | 50.9% | 63.4% | 31.4% | 68.7% | 28.2% | 2021 | 13/13 | 8.2 | 1.2 | 62.9% | 75.2% | 52.0% | 60.8% | 40.3% | 66.5% | 32.1% |
| 28 | 2026 | 14/15 | 20.7 | 4.4 | 69.9% | 80.0% | 58.4% | 65.6% | 21.9% | 73.5% | 26.2% | 2022 | 18/18 | 8.3 | 2.6 | 63.4% | 71.2% | 48.3% | 61.9% | 32.8% | 62.7% | 34.7% |
| 29 | — | —/— | — | — | — | — | — | — | — | — | — | 2023 | 42/42 | 6.9 | 1.9 | 62.0% | 73.1% | 50.7% | 61.9% | 32.8% | 64.6% | 34.0% |
| 30 | — | —/— | — | — | — | — | — | — | — | — | — | 2024 | 39/39 | 7.5 | 2.0 | 59.5% | 73.7% | 50.7% | 61.7% | 34.2% | 64.3% | 33.4% |
| 31 | — | —/— | — | — | — | — | — | — | — | — | — | 2025 | 33/34 | 6.3 | 1.8 | 59.5% | 68.7% | 49.2% | 60.6% | 30.5% | 60.5% | 34.2% |
| 32 | — | —/— | — | — | — | — | — | — | — | — | — | 2026 | 12/13 | 8.6 | 1.5 | 56.7% | 71.8% | 47.5% | 57.3% | 39.4% | 61.2% | 31.1% |
| Career | — | 242/244 | 17.9 | 3.2 | 64.1% | 79.1% | 54.7% | 64.6% | 32.9% | 70.4% | 28.1% | — | 162/164 | 7.3 | 1.9 | 60.8% | 72.0% | 50.0% | 61.4% | 33.6% | 63.2% | 33.5% |
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 | Reilly Opelka | Christopher O'Connell | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 17 | 2015 | 1486 | 95.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2016 | 1592 | 130.1 | +2.51 | -2.38 | 0.980 | 49.8% | +33 | — | — | 45.5% | -0.23 | 2–2 (50%) | 5–7 (42%) | — | +0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2017 | 1552 | 125.8 | +1.52 | -4.69 | 0.829 | 47.7% | +46 | — | — | 34.6% | -0.81 | 0–6 (0%) | 2–5 (29%) | — | -0.37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 1540 | 116.6 | +0.63 | -1.23 | 0.999 | 49.7% | +39 | — | — | 50.0% | 0.00 | 1–1 | 2–2 (50%) | — | -0.28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 1850 | 150.9 | +6.14 | -5.53 | 0.981 | 50.1% | +9 | -241 | -219 | 53.7% | +0.20 | 10–9 (53%) | 24–23 (51%) | — | +0.85 | 2015 | 1495 | 104.2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2020 | 1851 | 148.3 | +5.19 | -5.27 | 0.941 | 50.1% | +37 | — | — | 55.1% | +0.25 | 5–3 (63%) | 6–8 (43%) | — | -0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2021 | 1862 | 153.9 | +5.94 | -6.21 | 0.940 | 49.6% | +7 | -149 | — | 52.8% | -0.04 | 4–7 (36%) | 22–15 (59%) | — | +0.95 | 2017 | 1525 | 115.5 | -0.12 | -0.17 | 0.638 | 43.9% | — | — | — | 16.7% | -2.17 | 0–1 | 1–1 | — | -0.10 |
| 24 | 2022 | 1820 | 149.2 | +5.73 | -4.25 | 1.033 | 50.5% | +110 | -82 | -265 | 56.8% | +0.35 | 7–3 (70%) | 17–17 (50%) | — | +0.11 | 2018 | 1518 | 105.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1494 | 99.2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2024 | 1714 | 120.7 | +0.88 | -3.89 | 0.877 | 48.4% | +48 | — | -93 | 38.2% | -0.53 | 4–2 (67%) | 2–6 (25%) | — | -0.12 | 2020 | 1510 | 117.0 | +2.22 | +2.41 | 0.854 | 48.6% | +35 | — | — | 36.4% | -0.55 | — | 1–1 | — | -0.18 |
| 27 | 2025 | 1756 | 141.0 | +3.89 | -6.25 | 0.901 | 48.8% | +41 | -65 | -79 | 51.3% | -0.15 | 7–5 (58%) | 28–16 (64%) | — | +0.22 | 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 |
| 28 | 2026 | 1718 | 137.8 | +4.79 | -4.35 | 0.989 | 49.9% | +105 | -103 | — | 52.8% | +0.08 | 1–4 (20%) | 8–6 (57%) | — | -0.24 | 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 |
| 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 |
| 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 |
| 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 |
| 32 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1672 | 124.8 | -2.07 | -2.74 | 0.800 | 46.8% | +74 | — | — | 33.3% | -1.22 | 1–2 (33%) | 4–3 (57%) | — | -0.23 |
| Career | — | 1973 | 150.3 | +4.76 | -5.19 | 0.950 | 49.6% | +41 | -132 | -141 | 51.5% | +0.01 | 41–42 (49%) | 116–105 (52%) | 106.3 | +0.50 | — | 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 |
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 | 1 | 6 | 7 | Mar 22, 2026 | H2H |
| Daniil Medvedev | 2 | 5 | 7 | Jul 24, 2025 | H2H |
| Alex de Minaur | 1 | 5 | 6 | Aug 10, 2025 | H2H |
| John Isner | 5 | 1 | 6 | Apr 10, 2022 | H2H |
| Christopher Eubanks | 4 | 0 | 4 | Mar 21, 2025 | H2H |
| 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 |