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

Damir Dzumhur vs Stefan Kozlov

Compare the head-to-head record, career totals, season-by-season performance, and match log for Damir Dzumhur vs Stefan Kozlov.

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Damir Dzumhur
Bosnia-Herzegovina Age 34 Right-Handed 175 cm / 5'9"
H2H
0 – 0
0 main draw meetings
Stefan Kozlov
United States Age 28 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Stefan Kozlov #163 6-4 3-6 7-5 Damir Dzumhur #75 Match data Aug 14, 2016* Q1 Q 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.

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
Damir Dzumhur #104 #23 1,665 1,951 136 175 43.7% 0 0 0 0 3 3
Stefan Kozlov #297 #103 558 1,673 9 26 25.7% 0 0 0 0 0 0

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 Damir Dzumhur Stefan Kozlov
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
20 — — — — — — — 2018 0–1 0.0% #316 1,528 0 0
22 2014 2–4 33.3% #109 1,597 0 0 2020 0–1 0.0% #371 1,514 0 0
23 2015 7–9 43.8% #82 1,667 0 0 2021 0–1 0.0% #159 1,550 0 0
24 2016 20–22 47.6% #77 1,741 0 0 2022 4–8 33.3% #198 1,529 0 0
25 2017 34–23 59.6% #30 1,932 0 2 — — — — — — —
26 2018 24–30 44.4% #47 1,778 0 3 — — — — — — —
27 2019 13–21 38.2% #93 1,741 0 3 — — — — — — —
28 2020 0–8 0.0% #119 1,711 0 3 — — — — — — —
29 2021 3–5 37.5% #158 1,603 0 3 — — — — — — —
30 2022 2–4 33.3% #186 1,598 0 3 — — — — — — —
31 2023 2–2 50.0% #154 1,533 0 3 — — — — — — —
32 2024 0–3 0.0% #83 1,454 0 3 — — — — — — —
33 2025 18–26 40.9% #66 1,673 0 3 — — — — — — —
34 2026 11–18 37.9% #104 1,634 0 3 — — — — — — —

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 Damir Dzumhur Stefan Kozlov
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%
20 — — — — — — — — — — — — — 2018 — — — — 0 1 1 0.0% — — — —
22 2014 2 3 5 40.0% 0 1 1 0.0% — — — — 2020 0 1 1 0.0% — — — — — — — —
23 2015 1 3 4 25.0% 6 5 11 54.5% 0 1 1 0.0% 2021 0 1 1 0.0% — — — — — — — —
24 2016 11 14 25 44.0% 7 6 13 53.8% 2 2 4 50.0% 2022 4 6 10 40.0% — — — — 0 2 2 0.0%
25 2017 31 15 46 67.4% 2 7 9 22.2% 1 1 2 50.0% — — — — — — — — — — — — —
26 2018 15 20 35 42.9% 4 8 12 33.3% 5 2 7 71.4% — — — — — — — — — — — — —
27 2019 8 15 23 34.8% 3 4 7 42.9% 2 2 4 50.0% — — — — — — — — — — — — —
28 2020 0 8 8 0.0% — — — — — — — — — — — — — — — — — — — — —
29 2021 1 3 4 25.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
30 2022 2 3 5 40.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
31 2023 0 1 1 0.0% 2 1 3 66.7% — — — — — — — — — — — — — — — — —
32 2024 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — —
33 2025 4 12 16 25.0% 14 11 25 56.0% 0 3 3 0.0% — — — — — — — — — — — — —
34 2026 2 7 9 22.2% 9 9 18 50.0% 0 2 2 0.0% — — — — — — — — — — — — —
Career — 77 107 184 41.8% 49 55 104 47.1% 10 13 23 43.5% — 4 17 21 19.0% 0 1 1 0.0% 5 8 13 38.5%

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 306/311 of Damir Dzumhur's and 35/35 of Stefan Kozlov'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 Damir Dzumhur Stefan Kozlov
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%
20 — —/— — — — — — — — — — 2018 1/1 2.0 5.0 50.9% 65.5% 35.7% 20.0% 50.0% 50.9% 28.0%
22 2014 6/6 3.0 3.8 56.6% 64.9% 47.8% 41.9% 44.3% 56.8% 36.4% 2020 1/1 1.0 5.0 68.5% 54.1% 57.1% 36.4% 50.0% 55.1% 31.7%
23 2015 16/16 2.6 1.9 66.0% 66.8% 48.6% 43.8% 43.4% 60.9% 40.8% 2021 1/1 1.0 1.0 76.4% 54.8% 61.5% 42.9% 25.0% 56.4% 32.7%
24 2016 41/42 2.6 2.2 66.4% 63.3% 50.8% 52.9% 49.9% 59.1% 39.0% 2022 12/12 1.6 4.8 72.4% 60.0% 43.6% 59.6% 35.7% 55.2% 36.0%
25 2017 57/57 2.7 3.3 63.5% 66.5% 51.3% 53.5% 51.3% 60.9% 40.3% — —/— — — — — — — — — —
26 2018 53/54 2.6 2.7 63.9% 64.4% 48.1% 51.5% 44.8% 58.3% 38.2% — —/— — — — — — — — — —
27 2019 33/34 2.3 2.9 62.5% 63.5% 47.2% 57.2% 34.8% 57.3% 36.9% — —/— — — — — — — — — —
28 2020 8/8 2.5 3.8 62.2% 63.6% 43.5% 44.3% 20.7% 55.9% 34.6% — —/— — — — — — — — — —
29 2021 8/8 1.1 2.1 70.4% 68.6% 46.4% 53.0% 47.8% 62.2% 34.7% — —/— — — — — — — — — —
30 2022 6/6 2.8 2.3 62.0% 63.5% 49.7% 37.8% 35.8% 58.2% 38.1% — —/— — — — — — — — — —
31 2023 4/4 0.5 1.0 73.6% 62.2% 51.4% 48.2% 39.2% 59.2% 42.5% — —/— — — — — — — — — —
32 2024 3/3 0.7 2.7 61.1% 65.6% 42.1% 32.8% 54.2% 56.4% 35.0% — —/— — — — — — — — — —
33 2025 42/44 1.3 2.7 66.7% 61.2% 53.4% 58.4% 44.2% 58.6% 38.4% — —/— — — — — — — — — —
34 2026 29/29 1.3 1.8 65.7% 59.8% 48.8% 52.1% 39.3% 56.1% 38.1% — —/— — — — — — — — — —
Career — 306/311 2.2 2.6 64.7% 63.9% 49.6% 52.4% 44.2% 58.8% 38.5% — 35/35 2.6 4.3 62.0% 62.4% 43.9% 54.8% 38.2% 55.1% 35.3%

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 Damir Dzumhur Stefan Kozlov
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
19 2011 1491 100.0 — — — — — — — — — — — — — 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
20 2012 1475 99.5 — — — — — — — — — — — — — 2018 1528 106.2 +0.19 -0.20 0.570 40.2% — — — 0.0% -3.50 — — — -0.08
21 2013 1506 107.3 — — — — — — — — — — — — — 2019 1514 100.9 — — — — — — — — — — — — —
22 2014 1597 118.6 -1.97 +0.53 0.844 46.4% +24 — — 26.7% -1.53 — 0–1 — -0.26 2020 1514 104.1 -1.24 +2.90 0.705 43.9% — — — 33.3% -2.33 0–1 1–0 — -0.06
23 2015 1667 129.2 -2.01 +2.48 1.044 50.4% -76 +55 — 37.8% -0.92 1–2 (33%) 1–1 — -0.15 2021 1550 110.6 +2.69 +0.42 0.749 44.9% — — — 0.0% -3.00 — — — +0.04
24 2016 1741 141.7 -3.80 +2.00 0.953 49.1% -42 +24 -114 45.2% -0.23 14–8 (64%) 5–11 (31%) — +0.12 2022 1530 118.4 -4.38 +0.86 0.803 45.9% +20 — — 32.3% -1.48 2–0 1–1 — -0.54
25 2017 1932 152.7 -2.31 +3.45 1.030 50.6% +22 -261 — 56.4% +0.30 14–11 (56%) 9–7 (56%) — +1.00 2023 1458 91.9 — — — — — — — — — — — — —
26 2018 1778 145.4 -4.17 +1.68 0.917 48.5% 0 -105 -44 49.2% -0.24 6–9 (40%) 11–8 (58%) — +1.03 2024 1433 92.7 — — — — — — — — — — — — —
27 2019 1742 136.2 -4.69 +0.59 0.864 47.0% -6 -58 -36 37.7% -0.83 7–1 (88%) 3–8 (27%) — -0.33 2025 1436 101.4 — — — — — — — — — — — — —
28 2020 1711 130.3 -1.94 -0.73 0.785 45.1% -16 — — 18.2% -2.18 0–3 (0%) 2–1 (67%) — -0.82 2026 1418 97.5 — — — — — — — — — — — — —
29 2021 1603 116.6 -0.78 +0.35 0.919 48.4% +23 +54 — 42.1% -1.05 0–2 3–1 (75%) — -0.42 — — — — — — — — — — — — — — — —
30 2022 1599 116.6 -2.01 -1.57 0.912 48.1% +21 — — 33.3% -0.80 1–1 1–1 — +0.11 — — — — — — — — — — — — — — — —
31 2023 1534 109.2 -1.08 +1.46 1.041 50.4% — +87 — 44.4% -0.22 1–0 1–1 — -0.50 — — — — — — — — — — — — — — — —
32 2024 1454 107.4 -3.25 -2.67 0.803 45.8% +18 — — 14.3% -1.43 0–1 0–1 — -0.02 — — — — — — — — — — — — — — — —
33 2025 1673 137.4 -3.88 +1.08 0.927 48.5% -76 +61 -53 42.7% -0.44 9–9 (50%) 6–8 (43%) — +0.97 — — — — — — — — — — — — — — — —
34 2026 1634 120.8 -5.44 +1.07 0.869 47.3% -66 +45 — 40.3% -0.81 5–3 (63%) 8–4 (67%) — +1.27 — — — — — — — — — — — — — — — —
Career — 1952 138.9 -3.52 +1.61 0.934 48.6% -11 -3 -59 44.4% -0.43 58–50 (54%) 50–53 (49%) 105.0 +0.65 — 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

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.