H2H data updated: 2026-10-17 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Jozef Kovalik vs J.J. Wolf.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| J.J. Wolf | 7-6(6) 7-6(5) | Jozef Kovalik | Match data | Aug 12, 2018* | Q1 | Cincinnati Open | Masters 1000 | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jozef Kovalik | #591 | #80 | 701 | 1,759 | 26 | 46 | 36.1% | 0 | 0 | 0 | 0 | 0 | 0 |
| J.J. Wolf | #223 | #39 | 1,025 | 1,849 | 45 | 55 | 45.0% | 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 | Jozef Kovalik | J.J. Wolf | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 21 | — | — | — | — | — | — | — | 2020 | 2–3 | 40.0% | #127 | 1,605 | 0 | 0 |
| 22 | — | — | — | — | — | — | — | 2021 | 0–3 | 0.0% | #174 | 1,557 | 0 | 0 |
| 23 | 2016 | 3–8 | 27.3% | #117 | 1,597 | 0 | 0 | 2022 | 15–13 | 53.6% | #66 | 1,799 | 0 | 0 |
| 24 | 2017 | 2–5 | 28.6% | #165 | 1,627 | 0 | 0 | 2023 | 26–25 | 51.0% | #53 | 1,780 | 0 | 0 |
| 25 | 2018 | 7–5 | 58.3% | #85 | 1,681 | 0 | 0 | 2024 | 2–9 | 18.2% | #261 | 1,629 | 0 | 0 |
| 26 | 2019 | 1–9 | 10.0% | #139 | 1,530 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2020 | 1–5 | 16.7% | #131 | 1,538 | 0 | 0 | 2026 | 0–2 | 0.0% | #223 | 1,604 | 0 | 0 |
| 28 | 2021 | 6–6 | 50.0% | #149 | 1,587 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 2022 | 1–3 | 25.0% | #137 | 1,565 | 0 | 0 | — | — | — | — | — | — | — |
| 30 | 2023 | 3–3 | 50.0% | #228 | 1,536 | 0 | 0 | — | — | — | — | — | — | — |
| 31 | 2024 | 2–2 | 50.0% | #127 | 1,556 | 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 | Jozef Kovalik | J.J. Wolf | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — |
| 22 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2016 | 2 | 5 | 7 | 28.6% | 1 | 3 | 4 | 25.0% | — | — | — | — | 2022 | 14 | 12 | 26 | 53.8% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 24 | 2017 | 2 | 1 | 3 | 66.7% | 0 | 4 | 4 | 0.0% | — | — | — | — | 2023 | 18 | 17 | 35 | 51.4% | 5 | 5 | 10 | 50.0% | 3 | 3 | 6 | 50.0% |
| 25 | 2018 | 3 | 1 | 4 | 75.0% | 4 | 4 | 8 | 50.0% | — | — | — | — | 2024 | 1 | 6 | 7 | 14.3% | 1 | 3 | 4 | 25.0% | — | — | — | — |
| 26 | 2019 | 0 | 3 | 3 | 0.0% | 1 | 4 | 5 | 20.0% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2020 | 0 | 2 | 2 | 0.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | 2026 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
| 28 | 2021 | 1 | 1 | 2 | 50.0% | 5 | 5 | 10 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 0 | 2 | 2 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2023 | — | — | — | — | 3 | 3 | 6 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2024 | — | — | — | — | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 8 | 15 | 23 | 34.8% | 18 | 29 | 47 | 38.3% | 0 | 2 | 2 | 0.0% | — | 35 | 43 | 78 | 44.9% | 7 | 9 | 16 | 43.8% | 3 | 3 | 6 | 50.0% |
Seasons are aligned by the age each player spent most of that calendar year. 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 | Jozef Kovalik | J.J. Wolf | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 21 | — | —/— | — | — | — | — | — | — | — | — | — | 2020 | 5/5 | 7.2 | 5.4 | 54.5% | 71.7% | 44.5% | 47.6% | 45.0% | 59.1% | 34.6% |
| 22 | — | —/— | — | — | — | — | — | — | — | — | — | 2021 | 3/3 | 8.0 | 3.7 | 56.0% | 75.0% | 53.1% | 56.7% | 15.9% | 65.3% | 29.5% |
| 23 | 2016 | 11/11 | 3.3 | 3.3 | 61.2% | 66.3% | 53.3% | 55.9% | 38.9% | 60.9% | 36.7% | 2022 | 28/28 | 6.8 | 3.1 | 59.6% | 69.8% | 47.6% | 56.9% | 41.0% | 61.1% | 35.6% |
| 24 | 2017 | 7/7 | 4.4 | 1.7 | 61.6% | 65.4% | 47.4% | 60.8% | 40.5% | 58.5% | 34.7% | 2023 | 51/51 | 7.2 | 3.0 | 57.1% | 74.1% | 52.6% | 61.5% | 48.7% | 64.8% | 35.1% |
| 25 | 2018 | 12/12 | 3.7 | 1.9 | 61.5% | 73.3% | 50.5% | 57.9% | 33.2% | 64.5% | 38.6% | 2024 | 11/11 | 5.2 | 3.0 | 55.4% | 65.5% | 43.9% | 49.3% | 19.3% | 56.0% | 30.8% |
| 26 | 2019 | 10/10 | 3.2 | 3.9 | 60.5% | 66.7% | 44.0% | 42.5% | 44.0% | 57.8% | 29.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2020 | 6/6 | 4.3 | 3.7 | 54.9% | 67.9% | 49.6% | 55.3% | 35.3% | 59.4% | 32.4% | 2026 | 2/2 | 4.5 | 3.0 | 52.0% | 67.0% | 45.0% | 42.0% | 31.5% | 56.0% | 27.5% |
| 28 | 2021 | 12/12 | 3.0 | 2.8 | 58.7% | 65.2% | 45.5% | 59.3% | 36.9% | 57.3% | 38.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 4/4 | 2.3 | 2.0 | 70.1% | 58.0% | 45.3% | 60.4% | 38.6% | 54.9% | 33.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 30 | 2023 | 6/6 | 2.0 | 2.2 | 68.5% | 65.3% | 50.5% | 49.9% | 41.1% | 61.2% | 37.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 31 | 2024 | 4/4 | 4.5 | 4.0 | 64.9% | 63.3% | 55.6% | 69.2% | 36.3% | 60.7% | 32.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 72/72 | 3.4 | 2.8 | 61.6% | 66.7% | 48.8% | 55.9% | 38.2% | 59.8% | 35.5% | — | 100/100 | 6.9 | 3.2 | 57.4% | 71.7% | 49.7% | 57.6% | 41.8% | 62.4% | 34.4% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 | Jozef Kovalik | J.J. Wolf | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 1490 | 99.6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 1507 | 107.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2013 | 1495 | 100.4 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2019 | 1505 | 105.3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2014 | 1528 | 114.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2020 | 1605 | 126.4 | -1.37 | +1.12 | 0.846 | 46.8% | +38 | — | — | 42.9% | -0.50 | — | 0–1 | — | -0.12 |
| 22 | 2015 | 1511 | 99.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2021 | 1557 | 116.1 | -3.14 | +1.22 | 0.850 | 47.5% | +19 | — | — | 33.3% | -1.22 | 0–3 (0%) | 2–0 | — | -0.03 |
| 23 | 2016 | 1598 | 123.9 | -1.54 | -0.12 | 0.938 | 48.9% | +6 | -2 | — | 34.5% | -0.55 | 1–4 (20%) | 1–6 (14%) | 93.0 | +0.57 | 2022 | 1799 | 143.6 | -1.16 | +0.24 | 0.914 | 48.5% | +5 | — | — | 51.5% | -0.12 | 5–3 (63%) | 5–5 (50%) | 107.4 | -0.89 |
| 24 | 2017 | 1627 | 121.1 | -1.89 | -0.48 | 0.835 | 46.8% | -42 | +66 | — | 23.5% | -1.29 | 2–0 | 1–3 (25%) | — | -0.45 | 2023 | 1780 | 143.3 | +0.70 | -0.62 | 0.999 | 50.1% | -5 | -194 | -134 | 52.8% | +0.18 | 5–8 (38%) | 11–8 (58%) | 98.3 | +1.36 |
| 25 | 2018 | 1682 | 129.1 | +0.33 | +1.10 | 1.085 | 51.6% | -60 | +86 | — | 55.2% | +0.34 | 2–1 (67%) | 2–3 (40%) | 102.5 | +0.83 | 2024 | 1629 | 108.6 | -4.15 | -2.83 | 0.700 | 43.4% | +1 | -34 | — | 18.2% | -2.41 | 1–0 | 0–1 | — | +0.47 |
| 26 | 2019 | 1531 | 111.2 | -3.84 | -3.49 | 0.703 | 44.2% | 0 | +141 | — | 12.0% | -2.08 | 1–0 | 1–4 (20%) | — | -0.45 | 2025 | 1608 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2020 | 1539 | 112.5 | -1.77 | -2.71 | 0.797 | 46.5% | — | +134 | — | 25.0% | -1.19 | — | 1–3 (25%) | — | +0.50 | 2026 | 1604 | 108.4 | -3.28 | -0.18 | 0.625 | 43.5% | — | — | — | 16.7% | -1.83 | — | 0–1 | — | -0.02 |
| 28 | 2021 | 1587 | 112.0 | -3.27 | +0.10 | 0.911 | 48.2% | — | +104 | — | 45.2% | -0.32 | 5–2 (71%) | 0–2 | — | +0.70 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2022 | 1566 | 113.4 | -2.18 | -1.73 | 0.734 | 44.7% | — | — | — | 30.0% | -1.50 | 1–1 | 1–0 | — | +0.31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2023 | 1536 | 111.8 | -0.60 | -0.64 | 0.963 | 49.6% | — | +123 | — | 53.3% | -0.07 | 1–2 (33%) | 1–1 | — | +0.08 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2024 | 1557 | 117.7 | -0.73 | +0.66 | 0.836 | 47.3% | — | +142 | — | 42.9% | -0.50 | 1–0 | 2–2 (50%) | — | -0.27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 32 | 2025 | 1499 | 103.2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1759 | 121.7 | -1.80 | -0.69 | 0.882 | 47.9% | -19 | +101 | — | 36.6% | -0.71 | 14–10 (58%) | 10–24 (29%) | 100.5 | +2.53 | — | 1850 | 138.2 | -0.65 | -0.47 | 0.914 | 48.6% | +3 | -148 | -134 | 47.2% | -0.27 | 11–14 (44%) | 18–16 (53%) | 102.5 | +0.77 |
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 |
|---|---|---|---|---|---|
| Alejandro Davidovich Fokina | 1 | 1 | 2 | Jul 20, 2023 | H2H |
| Pedro Martinez | 1 | 1 | 2 | Apr 19, 2023 | H2H |
| Pablo Carreno Busta | 0 | 2 | 2 | Jan 22, 2020 | H2H |
| Joao Sousa | 0 | 2 | 2 | Sep 19, 2019 | H2H |
| Guillermo Garcia-Lopez | 2 | 0 | 2 | Jul 31, 2019 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Alexander Bublik | 2 | 2 | 4 | Aug 30, 2026 | H2H |
| James Duckworth | 0 | 2 | 2 | Aug 14, 2026 | H2H |
| Marcos Giron | 0 | 2 | 2 | Apr 5, 2024 | H2H |
| Sebastian Baez | 1 | 1 | 2 | Jan 16, 2024 | H2H |
| Luca Van Assche | 1 | 1 | 2 | Jan 10, 2024 | H2H |