H2H data updated: 2026-08-31 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Christopher O'Connell vs Nicolai Budkov Kjaer.
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| Winner | Score | Loser | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Christopher O'Connell | 7-5 6-4 | Nicolai Budkov Kjaer | Match data | Aug 26, 2026 | Q2 | US Open | Grand Slam | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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 |
| Nicolai Budkov Kjaer | #149 | #118 | 530 | 1,626 | 3 | 7 | 30.0% | 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 | Nicolai Budkov Kjaer | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | — | — | — | — | — | — | — | 2025 | 1–3 | 25.0% | #136 | 1,517 | 0 | 0 |
| 19 | — | — | — | — | — | — | — | 2026 | 2–4 | 33.3% | #149 | 1,579 | 0 | 0 |
| 23 | 2017 | 0–2 | 0.0% | #393 | 1,524 | 0 | 0 | — | — | — | — | — | — | — |
| 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. 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 | Nicolai Budkov Kjaer | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2025 | 1518 | 110.9 | -1.63 | -2.72 | 0.769 | 46.3% | — | — | — | 30.0% | -1.20 | 1–1 | 1–0 | +0.04 |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1580 | 115.3 | -1.44 | +1.17 | 0.904 | 48.5% | — | +34 | — | 18.2% | -1.82 | — | — | -0.27 |
| 21 | 2015 | 1495 | 104.2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2017 | 1525 | 115.5 | -0.12 | -0.17 | 0.638 | 43.9% | — | — | — | 16.7% | -2.17 | 0–1 | 1–1 | -0.10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 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 | -2.09 | -2.73 | 0.800 | 46.8% | +74 | — | — | 33.3% | -1.22 | 1–2 (33%) | 4–3 (57%) | -0.22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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%) | -3.27 | — | 1626 | 113.6 | -1.52 | -0.39 | 0.849 | 47.6% | — | +34 | — | 23.8% | -1.52 | 1–1 | 1–0 | -2.30 |
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 |
|---|---|---|---|---|---|
| Reilly Opelka | 1 | 1 | 2 | Apr 23, 2026 | H2H |
| Andrea Pellegrino | 0 | 1 | 1 | Jul 14, 2026 | H2H |
| Daniil Medvedev | 0 | 1 | 1 | Apr 27, 2026 | H2H |
| Denis Shapovalov | 1 | 0 | 1 | Apr 25, 2026 | H2H |
| Jaume Munar | 0 | 1 | 1 | Feb 9, 2026 | H2H |