H2H data updated: 2026-09-01 00:00 UTC
Brandon Nakashima holds a 2–0 lead over Christopher O'Connell in their ATP head-to-head. Across 2 main-draw meetings, Brandon Nakashima leads 2–0 on hard courts. Most recently, Brandon Nakashima won the 2024 Washington Open second round 6-2 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 |
|---|---|---|---|---|---|---|---|---|
| Brandon Nakashima | 6-2 6-2 | Christopher O'Connell | Match data | Aug 1, 2024* | R32 | Washington Open | ATP 500 | Hard |
| Brandon Nakashima | 6-4 7-6(3) | Christopher O'Connell | Match data | Sep 24, 2022* | SF | San Diego | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brandon Nakashima | #17 | #17 | 2,485 | 1,952 | 151 | 124 | 54.9% | 0 | 0 | 0 | 0 | 1 | 1 |
| 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 | Brandon Nakashima | Christopher O'Connell | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 2020 | 3–2 | 60.0% | #166 | 1,547 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2021 | 15–10 | 60.0% | #68 | 1,800 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2022 | 30–23 | 56.6% | #47 | 1,860 | 0 | 1 | — | — | — | — | — | — | — |
| 21 | 2023 | 13–20 | 39.4% | #134 | 1,683 | 0 | 1 | — | — | — | — | — | — | — |
| 22 | 2024 | 25–23 | 52.1% | #38 | 1,815 | 0 | 1 | — | — | — | — | — | — | — |
| 23 | 2025 | 33–29 | 53.2% | #35 | 1,781 | 0 | 1 | 2017 | 0–2 | 0.0% | #393 | 1,524 | 0 | 0 |
| 24 | 2026 | 32–17 | 65.3% | #17 | 1,946 | 0 | 1 | — | — | — | — | — | — | — |
| 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 | Brandon Nakashima | 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 | 2020 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2021 | 15 | 9 | 24 | 62.5% | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2022 | 21 | 16 | 37 | 56.8% | 3 | 4 | 7 | 42.9% | 6 | 3 | 9 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2023 | 9 | 13 | 22 | 40.9% | 3 | 3 | 6 | 50.0% | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2024 | 13 | 14 | 27 | 48.1% | 5 | 5 | 10 | 50.0% | 7 | 4 | 11 | 63.6% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2025 | 21 | 19 | 40 | 52.5% | 6 | 7 | 13 | 46.2% | 6 | 3 | 9 | 66.7% | 2017 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 24 | 2026 | 23 | 10 | 33 | 69.7% | 5 | 5 | 10 | 50.0% | 4 | 2 | 6 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | 105 | 83 | 188 | 55.9% | 22 | 24 | 46 | 47.8% | 24 | 17 | 41 | 58.5% | — | 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 272/276 of Brandon Nakashima'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 | Brandon Nakashima | 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 | 2020 | 5/5 | 6.8 | 2.4 | 59.6% | 73.4% | 60.6% | 75.0% | 50.0% | 68.6% | 37.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 19 | 2021 | 25/25 | 7.8 | 2.3 | 57.7% | 74.9% | 54.0% | 61.6% | 50.0% | 66.3% | 35.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2022 | 53/53 | 7.4 | 1.7 | 65.2% | 74.5% | 54.8% | 57.0% | 37.7% | 67.5% | 35.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2023 | 33/33 | 7.5 | 2.1 | 64.9% | 74.6% | 51.3% | 55.4% | 33.5% | 66.6% | 34.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2024 | 47/48 | 8.6 | 1.1 | 66.1% | 74.7% | 55.5% | 69.2% | 37.7% | 68.4% | 33.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2025 | 60/62 | 8.6 | 1.1 | 65.3% | 74.7% | 52.8% | 57.7% | 35.8% | 67.1% | 35.1% | 2017 | 2/2 | 4.0 | 3.5 | 62.1% | 64.7% | 50.0% | 65.7% | 6.7% | 59.0% | 26.2% |
| 24 | 2026 | 49/50 | 10.2 | 1.1 | 66.0% | 78.6% | 51.6% | 57.9% | 41.2% | 69.4% | 36.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 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 | — | 272/276 | 8.4 | 1.5 | 64.7% | 75.4% | 53.5% | 60.0% | 38.8% | 67.7% | 35.0% | — | 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 | Brandon Nakashima | 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 | |
| 16 | 2018 | 1497 | 101.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2020 | 1548 | 129.2 | +2.04 | +0.75 | 1.207 | 53.6% | +61 | — | — | 64.3% | +0.79 | 0–1 | 3–1 (75%) | — | -0.05 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2021 | 1800 | 141.9 | +1.63 | +0.45 | 1.060 | 51.1% | +26 | — | — | 55.4% | +0.45 | 7–3 (70%) | 8–7 (53%) | — | -0.32 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2022 | 1860 | 147.5 | +2.80 | -0.54 | 1.089 | 51.3% | -10 | -291 | -14 | 56.7% | +0.34 | 5–6 (45%) | 23–10 (70%) | — | +0.88 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2023 | 1684 | 134.4 | +1.89 | -1.46 | 1.015 | 49.9% | +3 | -99 | +55 | 44.3% | -0.11 | 5–10 (33%) | 14–13 (52%) | — | -0.78 | 2015 | 1495 | 104.2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2024 | 1815 | 147.2 | +3.32 | -0.97 | 1.049 | 50.8% | -23 | -119 | -18 | 53.4% | +0.39 | 3–7 (30%) | 10–15 (40%) | — | -0.21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2025 | 1782 | 146.7 | +2.07 | -0.50 | 1.068 | 50.8% | -5 | -98 | +38 | 50.0% | +0.11 | 10–9 (53%) | 19–24 (44%) | — | +1.72 | 2017 | 1525 | 115.5 | -0.12 | -0.17 | 0.638 | 43.9% | — | — | — | 16.7% | -2.17 | 0–1 | 1–1 | — | -0.10 |
| 24 | 2026 | 1947 | 154.4 | +4.03 | +1.31 | 1.193 | 52.8% | +12 | -241 | -129 | 63.2% | +0.94 | 8–8 (50%) | 14–17 (45%) | — | +1.23 | 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 | -2.07 | -2.74 | 0.800 | 46.8% | +74 | — | — | 33.3% | -1.22 | 1–2 (33%) | 4–3 (57%) | — | -0.23 |
| Career | — | 1952 | 150.9 | +2.72 | -0.27 | 1.085 | 51.2% | +1 | -163 | -12 | 54.3% | +0.37 | 38–44 (46%) | 91–87 (51%) | 99.5 | +0.90 | — | 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 |
|---|---|---|---|---|---|
| Frances Tiafoe | 1 | 7 | 8 | Aug 22, 2026 | H2H |
| Jordan Thompson | 6 | 2 | 8 | Sep 27, 2025 | H2H |
| Taylor Fritz | 2 | 4 | 6 | Aug 21, 2026 | H2H |
| Ben Shelton | 0 | 6 | 6 | Aug 13, 2026 | H2H |
| Alexander Zverev | 0 | 6 | 6 | Mar 8, 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 |