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

Stefan Kozlov vs Sergiy Stakhovsky

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

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Stefan Kozlov
United States Age 28 Right-Handed 183 cm / 6'0"
H2H
0 – 0
0 main draw meetings
Sergiy Stakhovsky
UKR Age 40 Right-Handed 193 cm / 6'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sergiy Stakhovsky #123 6-7(5) 6-4 6-4 Stefan Kozlov #144 Match data May 29, 2017 Q2 Q Roland Garros Grand Slam Clay

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.

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
Sergiy Stakhovsky #678 #31 1,263 1,838 145 196 42.5% 0 0 0 0 4 4

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 Sergiy Stakhovsky
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 2004 0–1 0.0% #335 1,491 0 0
19 2017 2–9 18.2% #167 1,549 0 0 2005 3–3 50.0% #184 1,527 0 0
20 2018 0–1 0.0% #316 1,528 0 0 2006 1–2 33.3% #195 1,525 0 0
21 — — — — — — — 2007 0–2 0.0% #199 1,509 0 0
22 2020 0–1 0.0% #371 1,514 0 0 2008 5–4 55.6% #92 1,615 0 1
23 2021 0–1 0.0% #159 1,550 0 0 2009 14–13 51.9% #60 1,751 0 2
24 2022 4–8 33.3% #198 1,529 0 0 2010 24–24 50.0% #46 1,743 0 4
25 — — — — — — — 2011 22–26 45.8% #62 1,707 0 4
26 — — — — — — — 2012 13–27 32.5% #103 1,737 0 4
27 — — — — — — — 2013 10–15 40.0% #98 1,678 0 4
28 — — — — — — — 2014 15–19 44.1% #58 1,685 0 4
29 — — — — — — — 2015 20–25 44.4% #62 1,715 0 4
30 — — — — — — — 2016 6–13 31.6% #109 1,693 0 4
31 — — — — — — — 2017 6–8 42.9% #122 1,728 0 4
32 — — — — — — — 2018 2–5 28.6% #134 1,650 0 4
33 — — — — — — — 2019 3–6 33.3% #150 1,576 0 4
34 — — — — — — — 2020 0–1 0.0% #202 1,568 0 4
35 — — — — — — — 2021 1–2 33.3% #220 1,530 0 4

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 Sergiy Stakhovsky
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % 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% — — — — 2004 — — — — — — — — — — — — 0 1 1 0.0%
19 2017 0 6 6 0.0% — — — — 2 3 5 40.0% — — — — 2005 0 1 1 0.0% — — — — — — — — 3 2 5 60.0%
20 2018 — — — — 0 1 1 0.0% — — — — — — — — 2006 0 1 1 0.0% — — — — — — — — 1 1 2 50.0%
21 — — — — — — — — — — — — — — — — — 2007 0 2 2 0.0% — — — — — — — — — — — —
22 2020 0 1 1 0.0% — — — — — — — — — — — — 2008 5 2 7 71.4% 0 1 1 0.0% 0 1 1 0.0% — — — —
23 2021 0 1 1 0.0% — — — — — — — — — — — — 2009 12 8 20 60.0% 1 3 4 25.0% 1 2 3 33.3% — — — —
24 2022 4 6 10 40.0% — — — — 0 2 2 0.0% — — — — 2010 16 16 32 50.0% 3 6 9 33.3% 5 2 7 71.4% — — — —
25 — — — — — — — — — — — — — — — — — 2011 12 14 26 46.2% 9 9 18 50.0% 1 3 4 25.0% — — — —
26 — — — — — — — — — — — — — — — — — 2012 9 17 26 34.6% 3 7 10 30.0% 1 3 4 25.0% — — — —
27 — — — — — — — — — — — — — — — — — 2013 5 7 12 41.7% 2 6 8 25.0% 3 2 5 60.0% — — — —
28 — — — — — — — — — — — — — — — — — 2014 7 13 20 35.0% 3 3 6 50.0% 5 3 8 62.5% — — — —
29 — — — — — — — — — — — — — — — — — 2015 15 16 31 48.4% 3 5 8 37.5% 2 4 6 33.3% — — — —
30 — — — — — — — — — — — — — — — — — 2016 3 9 12 25.0% 0 1 1 0.0% 3 3 6 50.0% — — — —
31 — — — — — — — — — — — — — — — — — 2017 3 3 6 50.0% 2 4 6 33.3% 1 1 2 50.0% — — — —
32 — — — — — — — — — — — — — — — — — 2018 0 2 2 0.0% 1 1 2 50.0% 1 2 3 33.3% — — — —
33 — — — — — — — — — — — — — — — — — 2019 2 2 4 50.0% 0 2 2 0.0% 1 2 3 33.3% — — — —
34 — — — — — — — — — — — — — — — — — 2020 0 1 1 0.0% — — — — — — — — — — — —
35 — — — — — — — — — — — — — — — — — 2021 1 2 3 33.3% — — — — — — — — — — — —
Career — 4 17 21 19.0% 0 1 1 0.0% 5 8 13 38.5% — — — — — 90 116 206 43.7% 27 48 75 36.0% 24 28 52 46.2% 4 4 8 50.0%

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 340/341 of Sergiy Stakhovsky'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 Sergiy Stakhovsky
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% 2004 1/1 3.0 0.0 75.0% 52.8% 33.3% 37.5% 0.0% 47.9% 26.2%
19 2017 11/11 3.6 4.1 58.0% 65.2% 44.1% 53.2% 35.0% 56.5% 32.9% 2005 6/6 7.8 2.3 68.1% 69.1% 51.4% 59.4% 48.7% 62.5% 30.3%
20 2018 1/1 2.0 5.0 50.9% 65.5% 35.7% 20.0% 50.0% 50.9% 28.0% 2006 3/3 8.7 3.0 63.9% 69.3% 44.4% 60.4% 28.3% 60.4% 28.8%
21 — —/— — — — — — — — — — 2007 2/2 3.5 2.5 56.3% 61.7% 48.8% 50.0% 25.0% 56.7% 30.6%
22 2020 1/1 1.0 5.0 68.5% 54.1% 57.1% 36.4% 50.0% 55.1% 31.7% 2008 9/9 4.9 2.1 64.2% 72.7% 48.9% 67.9% 38.9% 64.6% 31.6%
23 2021 1/1 1.0 1.0 76.4% 54.8% 61.5% 42.9% 25.0% 56.4% 32.7% 2009 27/27 6.5 2.3 63.7% 71.9% 48.8% 60.8% 43.0% 63.6% 35.5%
24 2022 12/12 1.6 4.8 72.4% 60.0% 43.6% 59.6% 35.7% 55.2% 36.0% 2010 48/48 6.8 2.5 63.4% 71.3% 46.5% 57.4% 34.7% 62.4% 35.6%
25 — —/— — — — — — — — — — 2011 48/48 5.5 1.9 62.0% 70.0% 50.3% 53.4% 40.4% 62.5% 36.8%
26 — —/— — — — — — — — — — 2012 39/40 6.4 3.1 59.5% 71.4% 52.8% 63.8% 36.1% 63.8% 34.7%
27 — —/— — — — — — — — — — 2013 25/25 6.4 2.7 63.1% 70.1% 51.1% 55.3% 37.2% 62.9% 35.6%
28 — —/— — — — — — — — — — 2014 34/34 6.3 3.4 64.2% 72.9% 47.6% 62.6% 43.5% 63.8% 34.9%
29 — —/— — — — — — — — — — 2015 45/45 6.5 2.4 61.9% 71.3% 51.1% 61.8% 35.4% 63.6% 35.1%
30 — —/— — — — — — — — — — 2016 19/19 6.8 4.1 56.6% 71.9% 48.9% 53.3% 39.4% 62.1% 32.7%
31 — —/— — — — — — — — — — 2017 14/14 9.4 2.5 62.2% 75.4% 51.6% 57.0% 39.5% 66.3% 32.9%
32 — —/— — — — — — — — — — 2018 7/7 8.9 3.3 61.6% 69.4% 46.8% 52.2% 21.1% 60.6% 32.9%
33 — —/— — — — — — — — — — 2019 9/9 9.1 2.7 63.5% 71.2% 49.6% 65.1% 39.6% 63.1% 30.9%
34 — —/— — — — — — — — — — 2020 1/1 4.0 3.0 67.1% 58.8% 48.0% 66.7% 100.0% 55.3% 32.8%
35 — —/— — — — — — — — — — 2021 3/3 9.0 4.3 57.2% 76.8% 51.5% 65.6% 56.1% 66.0% 29.1%
Career — 35/35 2.6 4.3 62.0% 62.4% 43.9% 54.8% 38.2% 55.1% 35.3% — 340/341 6.6 2.7 62.2% 71.3% 49.6% 59.0% 38.3% 63.1% 34.7%

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 Sergiy Stakhovsky
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 2004 1492 96.9 +1.37 -0.87 0.503 37.8% — — — 0.0% -4.50 — — — -0.01
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 2005 1528 104.8 -1.62 -2.88 0.808 46.3% +15 — — 46.7% -0.53 2–1 (67%) 2–2 (50%) — +0.25
20 2018 1528 106.2 +0.19 -0.20 0.570 40.2% — — — 0.0% -3.50 — — — -0.08 2006 1525 115.1 +0.53 -0.16 0.727 45.0% -1 — — 37.5% -1.25 1–1 1–0 — -0.41
21 2019 1514 100.9 — — — — — — — — — — — — — 2007 1509 105.4 -2.12 -0.77 0.706 43.5% — — — 0.0% -2.75 — — — +0.11
22 2020 1514 104.1 -1.24 +2.90 0.705 43.9% — — — 33.3% -2.33 0–1 1–0 — -0.06 2008 1615 119.8 -0.38 -0.29 0.891 48.7% +20 — — 52.6% -0.16 3–0 (100%) 2–0 — -0.41
23 2021 1550 110.6 +2.69 +0.42 0.749 44.9% — — — 0.0% -3.00 — — — +0.04 2009 1751 134.9 -0.48 -0.33 0.976 50.0% +28 -170 -104 51.5% -0.01 7–4 (64%) 6–3 (67%) — +1.40
24 2022 1530 118.4 -4.38 +0.86 0.803 45.9% +20 — — 32.3% -1.48 2–0 1–1 — -0.54 2010 1743 144.9 -0.90 -0.51 0.949 49.4% +38 -194 -15 52.2% -0.02 10–9 (53%) 14–7 (67%) — -0.67
25 2023 1458 91.9 — — — — — — — — — — — — — 2011 1708 143.8 -0.30 -0.35 0.981 49.5% +47 -57 -27 45.3% -0.39 6–5 (55%) 12–8 (60%) — +0.79
26 2024 1433 92.7 — — — — — — — — — — — — — 2012 1737 144.8 +0.53 -1.27 0.957 49.3% +40 -119 -83 41.1% -0.43 3–9 (25%) 13–15 (46%) — -1.40
27 2025 1436 101.4 — — — — — — — — — — — — — 2013 1678 130.6 -0.70 -1.39 0.958 49.3% +35 -75 +62 46.3% -0.34 1–7 (13%) 6–4 (60%) — -0.19
28 2026 1418 97.5 — — — — — — — — — — — — — 2014 1686 132.7 -0.47 -0.60 0.964 49.2% -20 -108 +86 44.8% -0.28 6–4 (60%) 7–10 (41%) — -0.26
29 — — — — — — — — — — — — — — — — 2015 1716 153.5 -0.56 +0.26 0.966 49.5% +47 -150 -2 46.2% -0.07 8–7 (53%) 6–9 (40%) — -0.06
30 — — — — — — — — — — — — — — — — 2016 1694 134.5 -0.30 -1.40 0.864 47.7% -19 — +108 37.2% -0.77 3–2 (60%) 4–5 (44%) — -0.26
31 — — — — — — — — — — — — — — — — 2017 1728 130.1 +1.63 -2.29 0.977 50.1% -72 -66 — 47.2% -0.17 0–3 (0%) 4–2 (67%) — -0.83
32 — — — — — — — — — — — — — — — — 2018 1650 117.1 -1.87 -0.92 0.835 46.9% — — +170 36.4% -0.86 1–1 1–2 (33%) — +0.05
33 — — — — — — — — — — — — — — — — 2019 1577 114.4 -0.93 -3.10 0.837 47.7% +2 — +208 34.8% -0.83 2–2 (50%) 2–2 (50%) — +0.66
34 — — — — — — — — — — — — — — — — 2020 1569 108.7 -0.29 -0.75 0.732 45.5% — — — 0.0% -3.00 — — — -0.10
35 — — — — — — — — — — — — — — — — 2021 1531 99.7 -1.61 -0.72 0.856 48.7% +30 — — 40.0% -0.20 1–1 0–2 — +0.06
36 — — — — — — — — — — — — — — — — 2022 1516 98.8 — — — — — — — — — — — — —
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 — 1839 138.5 -0.39 -0.77 0.940 49.1% +25 -108 +39 45.2% -0.32 54–56 (49%) 80–71 (53%) 105.1 -0.38

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.