H2H data updated: 2026-09-01 00:00 UTC

Borna Coric vs Stefan Kozlov

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

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Borna Coric
Croatia Age 29 Right-Handed 188 cm / 6'2"
H2H
0 – 0
0 main draw meetings
Stefan Kozlov
United States Age 28 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Borna Coric #204 2-6 6-2 6-2 Stefan Kozlov #851 Match data Aug 26, 2014* Q2 Q US Open Grand Slam 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
Borna Coric #237 #12 2,695 2,048 200 188 51.5% 0 1 0 1 1 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 Borna Coric Stefan Kozlov
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 2013 0–1 0.0% #1083 1,489 0 0
16 2013 0–1 0.0% #303 1,495 0 0 2014 0–1 0.0% #467 1,453 0 0
17 2014 6–5 54.5% #102 1,646 0 0 2015 0–2 0.0% #351 1,420 0 0
18 2015 24–27 47.1% #44 1,824 0 0 2016 3–2 60.0% #116 1,481 0 0
19 2016 21–21 50.0% #48 1,849 0 0 2017 2–9 18.2% #167 1,549 0 0
20 2017 21–25 45.7% #48 1,801 0 1 2018 0–1 0.0% #316 1,528 0 0
21 2018 35–19 64.8% #12 2,014 0 2 — — — — — — —
22 2019 27–22 55.1% #28 1,833 0 2 2020 0–1 0.0% #371 1,514 0 0
23 2020 15–10 60.0% #24 1,889 0 2 2021 0–1 0.0% #159 1,550 0 0
24 2021 6–3 66.7% #73 1,896 0 2 2022 4–8 33.3% #198 1,529 0 0
25 2022 16–12 57.1% #26 1,934 0 3 — — — — — — —
26 2023 18–18 50.0% #37 1,789 0 3 — — — — — — —
27 2024 11–18 37.9% #90 1,651 0 3 — — — — — — —
28 2025 0–7 0.0% #115 1,575 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 Borna Coric 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 2013 — — — — 0 1 1 0.0% — — — — 2014 0 1 1 0.0% — — — — — — — —
17 2014 4 3 7 57.1% 2 2 4 50.0% — — — — 2015 0 2 2 0.0% — — — — — — — —
18 2015 12 17 29 41.4% 10 7 17 58.8% 2 3 5 40.0% 2016 — — — — — — — — 3 2 5 60.0%
19 2016 13 13 26 50.0% 8 6 14 57.1% 0 2 2 0.0% 2017 0 6 6 0.0% — — — — 2 3 5 40.0%
20 2017 12 17 29 41.4% 9 6 15 60.0% 0 2 2 0.0% 2018 — — — — 0 1 1 0.0% — — — —
21 2018 25 13 38 65.8% 5 5 10 50.0% 5 1 6 83.3% — — — — — — — — — — — — —
22 2019 15 14 29 51.7% 8 6 14 57.1% 4 2 6 66.7% 2020 0 1 1 0.0% — — — — — — — —
23 2020 11 6 17 64.7% 4 4 8 50.0% — — — — 2021 0 1 1 0.0% — — — — — — — —
24 2021 6 3 9 66.7% — — — — — — — — 2022 4 6 10 40.0% — — — — 0 2 2 0.0%
25 2022 13 7 20 65.0% 3 5 8 37.5% — — — — — — — — — — — — — — — — —
26 2023 9 10 19 47.4% 9 5 14 64.3% 0 3 3 0.0% — — — — — — — — — — — — —
27 2024 8 12 20 40.0% 2 5 7 28.6% 1 1 2 50.0% — — — — — — — — — — — — —
28 2025 0 6 6 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
Career — 128 121 249 51.4% 60 53 113 53.1% 12 14 26 46.2% — 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 385/388 of Borna Coric'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 Borna Coric 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 2013 1/1 1.0 3.0 58.9% 66.1% 35.9% 45.5% 40.0% 53.7% 31.7% 2014 1/1 2.0 4.0 56.4% 61.3% 50.0% 63.6% 16.7% 56.4% 35.5%
17 2014 11/11 7.5 2.7 57.7% 74.3% 56.6% 63.7% 48.8% 66.3% 37.6% 2015 2/2 0.5 3.0 44.3% 48.1% 35.6% 27.8% 67.5% 41.3% 42.2%
18 2015 51/51 3.6 2.3 59.2% 69.9% 49.5% 56.5% 43.6% 61.7% 34.4% 2016 5/5 4.2 4.8 55.8% 67.8% 41.9% 67.2% 40.4% 56.9% 38.4%
19 2016 40/42 6.2 2.1 62.4% 70.2% 53.3% 57.8% 36.1% 64.0% 35.1% 2017 11/11 3.6 4.1 58.0% 65.2% 44.1% 53.2% 35.0% 56.5% 32.9%
20 2017 46/46 6.1 2.6 62.6% 71.6% 53.5% 64.9% 36.5% 64.7% 34.8% 2018 1/1 2.0 5.0 50.9% 65.5% 35.7% 20.0% 50.0% 50.9% 28.0%
21 2018 54/54 5.9 1.9 63.9% 73.7% 56.7% 62.2% 47.5% 67.4% 38.2% — —/— — — — — — — — — —
22 2019 48/49 7.4 2.5 62.7% 73.3% 53.8% 63.4% 45.3% 66.1% 35.2% 2020 1/1 1.0 5.0 68.5% 54.1% 57.1% 36.4% 50.0% 55.1% 31.7%
23 2020 25/25 6.8 2.0 64.1% 73.3% 53.3% 59.9% 47.7% 66.0% 37.5% 2021 1/1 1.0 1.0 76.4% 54.8% 61.5% 42.9% 25.0% 56.4% 32.7%
24 2021 9/9 9.1 2.0 66.5% 75.7% 59.2% 62.4% 33.2% 70.0% 35.2% 2022 12/12 1.6 4.8 72.4% 60.0% 43.6% 59.6% 35.7% 55.2% 36.0%
25 2022 28/28 6.8 1.8 61.8% 74.4% 53.3% 58.6% 38.2% 66.5% 34.3% — —/— — — — — — — — — —
26 2023 36/36 4.7 2.1 59.8% 73.2% 50.5% 58.9% 39.0% 64.1% 33.9% — —/— — — — — — — — — —
27 2024 29/29 7.0 2.3 61.0% 72.5% 51.9% 58.9% 37.6% 63.9% 35.8% — —/— — — — — — — — — —
28 2025 7/7 5.0 3.7 58.1% 69.9% 47.7% 52.7% 40.7% 61.0% 28.4% — —/— — — — — — — — — —
Career — 385/388 6.0 2.3 61.9% 72.4% 53.1% 60.3% 41.6% 65.0% 35.4% — 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 Borna Coric 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 2013 1496 104.8 -5.62 -1.81 0.685 43.5% — — — 33.3% -2.33 0–1 1–0 — +0.11 2014 1454 100.0 +0.67 0.00 0.813 45.3% — — — 0.0% -3.00 — — — -0.04
17 2014 1647 135.5 +1.21 +0.82 1.117 52.1% +22 -71 — 62.1% +0.72 0–4 (0%) 3–2 (60%) — +0.07 2015 1420 101.3 -5.76 -0.97 0.718 41.8% — — — 0.0% -3.50 — — — +0.21
18 2015 1825 148.4 -1.60 -0.26 0.897 48.1% -59 -72 -214 45.0% -0.56 10–6 (63%) 9–4 (69%) — -2.71 2016 1481 107.5 -3.43 +1.33 0.891 48.1% — — +119 54.5% +0.09 1–0 — — -0.03
19 2016 1850 153.7 +0.55 -0.45 0.974 49.2% -25 -61 — 48.0% -0.13 9–5 (64%) 11–10 (52%) — -0.13 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 2017 1801 150.5 +1.10 -0.60 0.987 50.0% -14 0 — 48.3% +0.03 6–10 (38%) 12–13 (48%) — -0.65 2018 1528 106.2 +0.19 -0.20 0.570 40.2% — — — 0.0% -3.50 — — — -0.08
21 2018 2015 171.3 +3.58 +2.92 1.171 52.4% -6 -182 -326 60.5% +0.93 10–7 (59%) 7–9 (44%) — -1.63 2019 1514 100.9 — — — — — — — — — — — — —
22 2019 1834 148.1 +1.54 -0.54 1.038 50.4% +34 +2 -98 53.5% +0.21 16–9 (64%) 14–13 (52%) — +2.58 2020 1514 104.1 -1.24 +2.90 0.705 43.9% — — — 33.3% -2.33 0–1 1–0 — -0.06
23 2020 1890 151.6 +2.06 +1.63 1.100 51.8% +45 -107 — 54.7% +0.47 4–1 (80%) 7–9 (44%) — +1.30 2021 1550 110.6 +2.69 +0.42 0.749 44.9% — — — 0.0% -3.00 — — — +0.04
24 2021 1897 136.0 +3.17 -1.19 1.175 52.0% +41 — — 66.7% +0.52 — 4–1 (80%) — +0.32 2022 1530 118.4 -4.38 +0.86 0.803 45.9% +20 — — 32.3% -1.48 2–0 1–1 — -0.54
25 2022 1934 157.0 +2.43 -0.11 1.026 50.3% +53 -155 — 55.6% -0.01 6–6 (50%) 10–3 (77%) — -0.53 2023 1458 91.9 — — — — — — — — — — — — —
26 2023 1789 143.1 +0.08 -1.32 0.943 49.0% +50 +85 -136 46.7% -0.26 6–5 (55%) 10–7 (59%) — +2.50 2024 1433 92.7 — — — — — — — — — — — — —
27 2024 1651 134.1 -0.08 -0.34 0.992 50.1% +41 +115 — 40.0% -0.36 2–6 (25%) 4–12 (25%) — +0.58 2025 1436 101.4 — — — — — — — — — — — — —
28 2025 1575 109.9 -1.95 -2.84 0.729 45.3% +14 — — 15.8% -1.79 0–2 0–3 (0%) — +0.33 2026 1418 97.5 — — — — — — — — — — — — —
Career — 2048 158.1 +1.04 +0.08 1.010 50.1% +9 -38 -201 50.5% +0.04 69–62 (53%) 92–86 (52%) 100.7 +0.55 — 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.