H2H data updated: 2026-09-02 00:00 UTC
Jannik Sinner holds a 2–1 lead over Christopher O'Connell in their ATP head-to-head. Across 3 main-draw meetings, Jannik Sinner leads 2–1 on hard courts. Most recently, Jannik Sinner won the 2024 US Open third round 6-1 6-4 6-2.
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 |
|---|---|---|---|---|---|---|---|---|
| Jannik Sinner | 6-1 6-4 6-2 | Christopher O'Connell | Match data | Sep 1, 2024* | R32 | US Open | Grand Slam | Hard |
| Jannik Sinner | 6-4 6-3 | Christopher O'Connell | Match data | Mar 27, 2024* | R16 | Miami Open | Masters 1000 | Hard |
| Christopher O'Connell | 7-6(7) 6-4 | Jannik Sinner | Match data | Jul 30, 2021* | R16 | Atlanta | ATP 250 | Hard |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jannik Sinner | #1 | #1 | 14,750 | 2,419 | 351 | 92 | 79.2% | 5 | 10 | 2 | 7 | 6 | 30 |
| 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 | Jannik Sinner | Christopher O'Connell | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 2019 | 7–9 | 43.8% | #78 | 1,676 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 2020 | 20–11 | 64.5% | #37 | 1,931 | 0 | 1 | — | — | — | — | — | — | — |
| 19 | 2021 | 47–22 | 68.1% | #10 | 1,992 | 0 | 5 | — | — | — | — | — | — | — |
| 20 | 2022 | 41–16 | 71.9% | #15 | 2,033 | 0 | 6 | — | — | — | — | — | — | — |
| 21 | 2023 | 63–18 | 77.8% | #4 | 2,223 | 0 | 10 | — | — | — | — | — | — | — |
| 22 | 2024 | 71–7 | 91.0% | #1 | 2,374 | 2 | 18 | — | — | — | — | — | — | — |
| 23 | 2025 | 58–6 | 90.6% | #2 | 2,389 | 4 | 24 | 2017 | 0–2 | 0.0% | #393 | 1,524 | 0 | 0 |
| 24 | 2026 | 44–3 | 93.6% | #1 | 2,401 | 5 | 30 | — | — | — | — | — | — | — |
| 26 | — | — | — | — | — | — | — | 2020 | 1–2 | 33.3% | #120 | 1,510 | 0 | 0 |
| 27 | — | — | — | — | — | — | — | 2021 | 4–9 | 30.8% | #175 | 1,660 | 0 | 0 |
| 28 | — | — | — | — | — | — | — | 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 | Jannik Sinner | 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 % | |||
| 17 | 2019 | 4 | 4 | 8 | 50.0% | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2020 | 13 | 8 | 21 | 61.9% | 7 | 3 | 10 | 70.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2021 | 37 | 14 | 51 | 72.5% | 10 | 6 | 16 | 62.5% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2022 | 22 | 10 | 32 | 68.8% | 15 | 4 | 19 | 78.9% | 4 | 2 | 6 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2023 | 47 | 11 | 58 | 81.0% | 8 | 4 | 12 | 66.7% | 8 | 3 | 11 | 72.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2024 | 51 | 3 | 54 | 94.4% | 11 | 3 | 14 | 78.6% | 9 | 1 | 10 | 90.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2025 | 39 | 3 | 42 | 92.9% | 11 | 2 | 13 | 84.6% | 8 | 1 | 9 | 88.9% | 2017 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 24 | 2026 | 19 | 2 | 21 | 90.5% | 18 | 1 | 19 | 94.7% | 7 | 0 | 7 | 100.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 4 | 6 | 10 | 40.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% |
| 28 | — | — | — | — | — | — | — | — | — | — | — | — | — | 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 | — | 232 | 55 | 287 | 80.8% | 83 | 27 | 110 | 75.5% | 36 | 10 | 46 | 78.3% | — | 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 427/443 of Jannik Sinner'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 | Jannik Sinner | 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% | |
| 17 | 2019 | 16/16 | 3.1 | 1.7 | 58.1% | 66.4% | 52.3% | 47.4% | 36.1% | 60.5% | 37.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 18 | 2020 | 30/31 | 3.4 | 2.3 | 61.9% | 71.5% | 50.5% | 63.8% | 52.9% | 63.3% | 40.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 19 | 2021 | 67/69 | 4.8 | 2.0 | 59.5% | 72.6% | 55.0% | 66.1% | 47.9% | 65.4% | 40.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2022 | 56/57 | 6.2 | 3.0 | 57.8% | 74.8% | 52.6% | 56.4% | 44.5% | 65.6% | 39.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2023 | 76/81 | 6.1 | 1.8 | 59.6% | 77.2% | 57.5% | 69.1% | 47.1% | 69.1% | 41.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2024 | 76/78 | 7.5 | 1.9 | 61.8% | 80.2% | 59.2% | 73.9% | 46.9% | 72.1% | 41.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2025 | 59/64 | 6.2 | 1.4 | 62.2% | 79.5% | 60.1% | 57.7% | 45.9% | 72.1% | 44.2% | 2017 | 2/2 | 4.0 | 3.5 | 62.1% | 64.7% | 50.0% | 65.7% | 6.7% | 59.0% | 26.2% |
| 24 | 2026 | 47/47 | 9.6 | 1.6 | 64.8% | 81.3% | 58.8% | 56.9% | 43.2% | 73.7% | 42.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | — | —/— | — | — | — | — | — | — | — | — | — | 2020 | 3/3 | 7.7 | 2.0 | 63.9% | 68.4% | 49.5% | 72.2% | 42.9% | 61.5% | 32.9% |
| 27 | — | —/— | — | — | — | — | — | — | — | — | — | 2021 | 13/13 | 8.2 | 1.2 | 62.9% | 75.2% | 52.0% | 60.8% | 40.3% | 66.5% | 32.1% |
| 28 | — | —/— | — | — | — | — | — | — | — | — | — | 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 | — | 427/443 | 6.3 | 2.0 | 60.8% | 76.7% | 56.6% | 63.7% | 46.2% | 68.8% | 41.1% | — | 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 | Jannik Sinner | 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 | 2019 | 1677 | 133.0 | -2.19 | +0.96 | 0.939 | 48.4% | -4 | -57 | — | 39.5% | -0.74 | 4–0 (100%) | 0–6 (0%) | — | +0.46 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2020 | 1932 | 160.2 | +1.04 | +2.55 | 1.091 | 52.2% | -109 | -107 | — | 63.6% | +0.92 | 4–5 (44%) | 6–6 (50%) | — | -1.46 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2021 | 1992 | 163.5 | +2.37 | +3.80 | 1.157 | 52.6% | +7 | -57 | — | 62.5% | +0.72 | 10–7 (59%) | 21–14 (60%) | — | +0.37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2022 | 2033 | 158.1 | +2.32 | +3.73 | 1.143 | 52.3% | -44 | +33 | -300 | 68.0% | +1.03 | 13–5 (72%) | 14–7 (67%) | — | +1.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2023 | 2224 | 174.4 | +5.31 | +5.60 | 1.336 | 54.7% | +62 | -189 | -298 | 72.4% | +1.54 | 18–7 (72%) | 17–13 (57%) | — | -0.21 | 2015 | 1495 | 104.2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2024 | 2375 | 177.5 | +7.62 | +6.29 | 1.480 | 55.9% | +67 | -239 | -283 | 83.3% | +1.99 | 13–6 (68%) | 23–8 (74%) | — | -1.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2025 | 2389 | 177.6 | +7.82 | +8.64 | 1.583 | 57.2% | +79 | -187 | -202 | 87.3% | +2.49 | 4–3 (57%) | 16–3 (84%) | — | -1.89 | 2017 | 1525 | 115.5 | -0.12 | -0.17 | 0.638 | 43.9% | — | — | — | 16.7% | -2.17 | 0–1 | 1–1 | — | -0.10 |
| 24 | 2026 | 2401 | 171.2 | +8.60 | +6.14 | 1.604 | 56.8% | +24 | -114 | -106 | 87.5% | +2.27 | 4–3 (57%) | 14–5 (74%) | — | -0.67 | 2018 | 1518 | 105.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1494 | 99.2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 1510 | 117.0 | +2.22 | +2.41 | 0.854 | 48.6% | +35 | — | — | 36.4% | -0.55 | — | 1–1 | — | -0.18 |
| 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 |
| 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 |
| 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 | -2.08 | -2.70 | 0.800 | 46.8% | +74 | — | — | 33.3% | -1.22 | 1–2 (33%) | 4–3 (57%) | — | -0.23 |
| Career | — | 2419 | 174.2 | +5.00 | +5.29 | 1.316 | 54.4% | +27 | -109 | -243 | 74.4% | +1.53 | 70–36 (66%) | 111–62 (64%) | 115.0 | -0.76 | — | 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 |
|---|---|---|---|---|---|
| Daniil Medvedev | 10 | 7 | 17 | May 16, 2026 | H2H |
| Carlos Alcaraz | 7 | 10 | 17 | Apr 12, 2026 | H2H |
| Alexander Zverev | 11 | 4 | 15 | Jul 12, 2026 | H2H |
| Novak Djokovic | 6 | 5 | 11 | Jul 10, 2026 | H2H |
| Andrey Rublev | 8 | 3 | 11 | May 14, 2026 | 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 |