H2H data updated: 2026-09-02 00:00 UTC

Stefan Kozlov vs Jiri Vesely H2H: 1-0

Stefan Kozlov holds a 1–0 lead over Jiri Vesely in their ATP head-to-head. Across 1 main-draw meeting, Stefan Kozlov leads 1–0 on hard courts. Most recently, Stefan Kozlov won the 2022 Australian Open first round 7-5 6-3 6-4.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Stefan Kozlov
United States Age 28 Right-Handed 183 cm / 6'0"
H2H
1 – 0
1 main draw meetings
Jiri Vesely
Czechia Age 33 Left-Handed 198 cm / 6'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Stefan Kozlov #169 7-5 6-3 6-4 Jiri Vesely #78 Match data Jan 19, 2022* R128 Australian Open Grand Slam 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.

Career Comparison

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
Stefan Kozlov #297 #103 558 1,673 9 26 25.7% 0 0 0 0 0 0
Jiri Vesely #1,213 #35 1,125 1,922 132 161 45.1% 0 0 0 0 2 2

Career Progression by Age

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 Stefan Kozlov Jiri Vesely
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 2013 0–1 0.0% #1083 1,489 0 0 — — — — — — —
16 2014 0–1 0.0% #467 1,453 0 0 — — — — — — —
17 2015 0–2 0.0% #351 1,420 0 0 — — — — — — —
18 2016 3–2 60.0% #116 1,481 0 0 — — — — — — —
19 2017 2–9 18.2% #167 1,549 0 0 2013 0–5 0.0% #85 1,492 0 0
20 2018 0–1 0.0% #316 1,528 0 0 2014 14–17 45.2% #66 1,663 0 0
21 — — — — — — — 2015 23–28 45.1% #41 1,746 0 1
22 2020 0–1 0.0% #371 1,514 0 0 2016 21–21 50.0% #55 1,859 0 1
23 2021 0–1 0.0% #159 1,550 0 0 2017 22–24 47.8% #62 1,779 0 1
24 2022 4–8 33.3% #198 1,529 0 0 2018 14–17 45.2% #89 1,778 0 1
25 — — — — — — — 2019 7–11 38.9% #105 1,748 0 1
26 — — — — — — — 2020 10–6 62.5% #68 1,768 0 2
27 — — — — — — — 2021 10–15 40.0% #83 1,631 0 2
28 — — — — — — — 2022 8–12 40.0% #109 1,707 0 2
29 — — — — — — — 2023 3–4 42.9% #292 1,718 0 2
30 — — — — — — — 2024 0–1 0.0% #341 1,677 0 2

Surface Results by Age

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 Stefan Kozlov Jiri Vesely
Yr HardClayGrass Yr HardClayGrass
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
15 2013 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — —
16 2014 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
17 2015 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
18 2016 — — — — — — — — 3 2 5 60.0% — — — — — — — — — — — — —
19 2017 0 6 6 0.0% — — — — 2 3 5 40.0% 2013 0 3 3 0.0% 0 2 2 0.0% — — — —
20 2018 — — — — 0 1 1 0.0% — — — — 2014 5 8 13 38.5% 7 8 15 46.7% 2 1 3 66.7%
21 — — — — — — — — — — — — — 2015 13 12 25 52.0% 8 13 21 38.1% 2 3 5 40.0%
22 2020 0 1 1 0.0% — — — — — — — — 2016 7 12 19 36.8% 9 6 15 60.0% 5 3 8 62.5%
23 2021 0 1 1 0.0% — — — — — — — — 2017 7 13 20 35.0% 14 9 23 60.9% 1 2 3 33.3%
24 2022 4 6 10 40.0% — — — — 0 2 2 0.0% 2018 5 8 13 38.5% 3 7 10 30.0% 6 2 8 75.0%
25 — — — — — — — — — — — — — 2019 1 5 6 16.7% 4 5 9 44.4% 2 1 3 66.7%
26 — — — — — — — — — — — — — 2020 6 3 9 66.7% 4 3 7 57.1% — — — —
27 — — — — — — — — — — — — — 2021 5 7 12 41.7% 3 6 9 33.3% 2 2 4 50.0%
28 — — — — — — — — — — — — — 2022 5 7 12 41.7% 0 3 3 0.0% 3 2 5 60.0%
29 — — — — — — — — — — — — — 2023 2 2 4 50.0% 0 1 1 0.0% 1 1 2 50.0%
30 — — — — — — — — — — — — — 2024 0 1 1 0.0% — — — — — — — —
Career — 4 17 21 19.0% 0 1 1 0.0% 5 8 13 38.5% — 56 81 137 40.9% 52 63 115 45.2% 24 17 41 58.5%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 35/35 of Stefan Kozlov's and 290/293 of Jiri Vesely'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 Stefan Kozlov Jiri Vesely
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%
15 2013 1/1 4.0 3.0 43.5% 74.5% 42.6% 62.5% 44.4% 56.5% 36.0% — —/— — — — — — — — — —
16 2014 1/1 2.0 4.0 56.4% 61.3% 50.0% 63.6% 16.7% 56.4% 35.5% — —/— — — — — — — — — —
17 2015 2/2 0.5 3.0 44.3% 48.1% 35.6% 27.8% 67.5% 41.3% 42.2% — —/— — — — — — — — — —
18 2016 5/5 4.2 4.8 55.8% 67.8% 41.9% 67.2% 40.4% 56.9% 38.4% — —/— — — — — — — — — —
19 2017 11/11 3.6 4.1 58.0% 65.2% 44.1% 53.2% 35.0% 56.5% 32.9% 2013 5/5 5.8 5.6 62.3% 68.2% 36.8% 53.9% 53.3% 56.6% 31.4%
20 2018 1/1 2.0 5.0 50.9% 65.5% 35.7% 20.0% 50.0% 50.9% 28.0% 2014 31/31 5.7 4.1 61.9% 72.2% 51.8% 61.0% 41.3% 64.3% 36.5%
21 — —/— — — — — — — — — — 2015 51/51 6.8 3.0 64.8% 72.5% 52.1% 58.2% 44.0% 65.2% 36.4%
22 2020 1/1 1.0 5.0 68.5% 54.1% 57.1% 36.4% 50.0% 55.1% 31.7% 2016 41/42 8.3 3.2 64.8% 72.0% 55.7% 61.6% 36.8% 66.4% 35.2%
23 2021 1/1 1.0 1.0 76.4% 54.8% 61.5% 42.9% 25.0% 56.4% 32.7% 2017 46/46 6.0 4.1 61.9% 69.9% 48.4% 59.5% 42.3% 61.8% 34.9%
24 2022 12/12 1.6 4.8 72.4% 60.0% 43.6% 59.6% 35.7% 55.2% 36.0% 2018 31/31 7.7 4.2 65.1% 69.0% 49.2% 64.9% 40.4% 62.2% 32.9%
25 — —/— — — — — — — — — — 2019 17/18 9.8 4.0 64.5% 73.2% 51.1% 69.8% 31.5% 65.4% 32.4%
26 — —/— — — — — — — — — — 2020 16/16 11.3 2.5 66.1% 75.8% 51.9% 40.2% 35.6% 67.7% 36.2%
27 — —/— — — — — — — — — — 2021 25/25 11.0 3.7 67.2% 76.8% 50.3% 69.8% 37.8% 67.9% 33.2%
28 — —/— — — — — — — — — — 2022 19/20 11.2 6.1 63.3% 76.8% 47.9% 68.9% 31.7% 66.1% 32.0%
29 — —/— — — — — — — — — — 2023 7/7 14.6 7.0 62.2% 75.2% 45.7% 57.1% 47.8% 64.1% 26.0%
30 — —/— — — — — — — — — — 2024 1/1 3.0 8.0 68.2% 67.0% 46.3% 66.7% 50.0% 60.5% 21.2%
Career — 35/35 2.6 4.3 62.0% 62.4% 43.9% 54.8% 38.2% 55.1% 35.3% — 290/293 8.1 3.9 64.1% 72.5% 50.8% 61.2% 39.8% 64.7% 34.4%

Advanced Statistics Comparison by Age

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 Stefan Kozlov Jiri Vesely
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
15 2013 1490 100.2 -4.35 +1.56 0.828 46.1% — — — 33.3% -1.33 0–1 1–0 — +0.13 — — — — — — — — — — — — — — — —
16 2014 1454 100.0 +0.67 0.00 0.813 45.3% — — — 0.0% -3.00 — — — -0.04 — — — — — — — — — — — — — — — —
17 2015 1420 101.3 -5.76 -0.97 0.718 41.8% — — — 0.0% -3.50 — — — +0.21 — — — — — — — — — — — — — — — —
18 2016 1481 107.5 -3.43 +1.33 0.891 48.1% — — +119 54.5% +0.09 1–0 — — -0.03 2012 1482 95.7 — — — — — — — — — — — — —
19 2017 1550 118.7 -5.47 -0.25 0.757 44.9% -74 — +123 21.7% -1.70 2–1 (67%) 0–3 (0%) — +0.21 2013 1493 111.7 -2.94 -1.37 0.725 44.9% -21 — — 20.0% -1.67 0–1 2–1 (67%) — +0.19
20 2018 1528 106.2 +0.19 -0.20 0.570 40.2% — — — 0.0% -3.50 — — — -0.08 2014 1664 136.5 -0.05 +0.58 1.021 50.1% -117 -21 +3 45.9% -0.19 3–4 (43%) 10–10 (50%) — -0.08
21 2019 1514 100.9 — — — — — — — — — — — — — 2015 1746 148.2 +0.88 +0.35 1.045 50.9% -29 -41 -113 50.8% +0.09 5–11 (31%) 16–12 (57%) — +1.73
22 2020 1514 104.1 -1.24 +2.90 0.705 43.9% — — — 33.3% -2.33 0–1 1–0 — -0.06 2016 1860 144.2 +2.44 -0.75 1.048 50.5% -124 -73 -95 54.2% +0.30 8–9 (47%) 13–14 (48%) — +0.57
23 2021 1550 110.6 +2.69 +0.42 0.749 44.9% — — — 0.0% -3.00 — — — +0.04 2017 1780 143.6 -2.06 -1.03 0.914 48.6% -101 +75 -61 46.5% -0.16 9–6 (60%) 6–13 (32%) — -1.49
24 2022 1530 118.4 -4.38 +0.86 0.803 45.9% +20 — — 32.3% -1.48 2–0 1–1 — -0.54 2018 1779 130.5 -0.73 -2.90 0.871 47.8% -124 -21 +62 49.4% -0.05 4–5 (44%) 9–8 (53%) — -0.41
25 2023 1458 91.9 — — — — — — — — — — — — — 2019 1748 124.4 +0.67 -2.88 0.938 49.1% -122 +7 +153 44.0% -0.32 2–4 (33%) 4–9 (31%) — +0.50
26 2024 1433 92.7 — — — — — — — — — — — — — 2020 1768 127.4 +2.20 -0.13 1.122 51.2% -88 +2 — 54.8% +0.31 4–1 (80%) 7–4 (64%) — +1.19
27 2025 1436 101.4 — — — — — — — — — — — — — 2021 1631 125.7 +2.99 -2.94 1.032 50.4% +17 +58 +195 48.4% +0.15 2–6 (25%) 6–10 (38%) — +0.67
28 2026 1418 97.5 — — — — — — — — — — — — — 2022 1707 140.3 +1.79 -2.50 0.944 48.8% +43 -93 +151 43.8% -0.44 2–2 (50%) 7–6 (54%) — +0.21
29 — — — — — — — — — — — — — — — — 2023 1719 118.3 -0.58 -2.32 0.724 46.0% +32 — — 38.5% -0.65 2–0 3–1 (75%) — -0.25
30 — — — — — — — — — — — — — — — — 2024 1677 103.7 +0.43 +0.06 0.537 43.4% — — — 25.0% -1.75 — — — -0.06
Career — 1674 113.0 -4.10 +0.48 0.784 45.4% -15 — +121 28.4% -1.58 5–3 (63%) 3–4 (43%) 104.8 -0.46 — 1923 143.5 +0.56 -1.13 0.974 49.6% -66 -4 +25 47.9% -0.08 41–49 (46%) 83–88 (49%) 99.9 +0.96

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.