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

Stefan Kozlov vs Steve Johnson H2H: 3-2

Stefan Kozlov holds a 3–2 lead over Steve Johnson in their ATP head-to-head. Across 5 main-draw meetings, Stefan Kozlov leads 2–1 on grass, while they are tied 1–1 on hard courts. Most recently, Steve Johnson won the 2022 Newport round of 32 7-5 6-3.

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
3 – 2
5 main draw meetings
Steve Johnson
USA Age 36 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Steve Johnson #95 7-5 6-3 Stefan Kozlov #104 Match data Jul 14, 2022* R32 Newport ATP 250 Grass
Steve Johnson #93 6-0 6-0 Stefan Kozlov #107 Match data Jun 13, 2022 Q1 Q Queen's Club Championships ATP 500 Grass
Stefan Kozlov #130 6-4 6-3 Steve Johnson #91 Match data Feb 21, 2022 Q1 Q Mexican Open ATP 500 Hard
Stefan Kozlov #151 6-1 6-3 Steve Johnson #99 Match data Feb 18, 2022* R16 Delray Beach Open ATP 250 Hard
Stefan Kozlov #149 3-6 6-1 6-1 Steve Johnson #25 Match data Jun 22, 2017* R32 Queen's Club Championships ATP 500 Grass
Steve Johnson #26 6-1 6-4 Stefan Kozlov #115 Match data Feb 23, 2017* R32 Delray Beach Open ATP 250 Hard
Stefan Kozlov #196 6-3 6-4 Steve Johnson #39 Match data Jun 11, 2016* R16 Libéma Open ATP 250 Grass

2 qualifying meetings 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
Stefan Kozlov #297 #103 558 1,673 9 26 25.7% 0 0 0 0 0 0
Steve Johnson #1,015 #21 1,680 1,990 199 202 49.6% 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 Steve Johnson
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 2010 0–1 0.0% — 1,529 0 0
21 — — — — — — — 2011 0–2 0.0% — 1,521 0 0
22 2020 0–1 0.0% #371 1,514 0 0 2012 3–5 37.5% #175 1,573 0 0
23 2021 0–1 0.0% #159 1,550 0 0 2013 4–10 28.6% #156 1,667 0 0
24 2022 4–8 33.3% #198 1,529 0 0 2014 20–20 50.0% #37 1,748 0 0
25 — — — — — — — 2015 37–27 57.8% #32 1,950 0 0
26 — — — — — — — 2016 30–28 51.7% #33 1,891 0 1
27 — — — — — — — 2017 29–23 55.8% #44 1,866 0 2
28 — — — — — — — 2018 27–22 55.1% #33 1,834 0 4
29 — — — — — — — 2019 14–21 40.0% #85 1,736 0 4
30 — — — — — — — 2020 6–8 42.9% #72 1,722 0 4
31 — — — — — — — 2021 10–12 45.5% #85 1,704 0 4
32 — — — — — — — 2022 17–17 50.0% #110 1,690 0 4
33 — — — — — — — 2023 2–5 28.6% #241 1,571 0 4
34 — — — — — — — 2024 0–1 0.0% #1017 1,564 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 Steve Johnson
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% — — — — 2010 0 1 1 0.0% — — — — — — — —
21 — — — — — — — — — — — — — 2011 0 2 2 0.0% — — — — — — — —
22 2020 0 1 1 0.0% — — — — — — — — 2012 3 5 8 37.5% — — — — — — — —
23 2021 0 1 1 0.0% — — — — — — — — 2013 4 7 11 36.4% 0 2 2 0.0% 0 1 1 0.0%
24 2022 4 6 10 40.0% — — — — 0 2 2 0.0% 2014 13 13 26 50.0% 2 3 5 40.0% 5 4 9 55.6%
25 — — — — — — — — — — — — — 2015 29 17 46 63.0% 5 6 11 45.5% 3 4 7 42.9%
26 — — — — — — — — — — — — — 2016 18 19 37 48.6% 1 5 6 16.7% 11 4 15 73.3%
27 — — — — — — — — — — — — — 2017 17 17 34 50.0% 8 2 10 80.0% 4 4 8 50.0%
28 — — — — — — — — — — — — — 2018 11 16 27 40.7% 11 3 14 78.6% 5 3 8 62.5%
29 — — — — — — — — — — — — — 2019 8 11 19 42.1% 2 5 7 28.6% 4 5 9 44.4%
30 — — — — — — — — — — — — — 2020 6 7 13 46.2% 0 1 1 0.0% — — — —
31 — — — — — — — — — — — — — 2021 7 8 15 46.7% 2 2 4 50.0% 1 2 3 33.3%
32 — — — — — — — — — — — — — 2022 11 13 24 45.8% 2 2 4 50.0% 4 2 6 66.7%
33 — — — — — — — — — — — — — 2023 0 3 3 0.0% 1 1 2 50.0% 1 1 2 50.0%
34 — — — — — — — — — — — — — 2024 0 1 1 0.0% — — — — — — — —
Career — 4 17 21 19.0% 0 1 1 0.0% 5 8 13 38.5% — 127 140 267 47.6% 34 32 66 51.5% 38 30 68 55.9%

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 393/401 of Steve Johnson'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 Steve Johnson
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% 2010 1/1 2.0 5.0 48.6% 70.6% 44.4% 75.0% 20.0% 57.1% 33.8%
21 — —/— — — — — — — — — — 2011 2/2 15.5 6.5 60.7% 76.6% 47.7% 71.4% 32.5% 65.2% 33.1%
22 2020 1/1 1.0 5.0 68.5% 54.1% 57.1% 36.4% 50.0% 55.1% 31.7% 2012 8/8 9.6 4.4 59.6% 74.3% 50.4% 71.8% 27.9% 64.9% 28.2%
23 2021 1/1 1.0 1.0 76.4% 54.8% 61.5% 42.9% 25.0% 56.4% 32.7% 2013 14/14 9.3 4.2 56.6% 71.6% 51.5% 73.4% 39.8% 62.8% 29.5%
24 2022 12/12 1.6 4.8 72.4% 60.0% 43.6% 59.6% 35.7% 55.2% 36.0% 2014 39/40 8.2 2.5 59.8% 76.6% 51.1% 61.9% 34.7% 66.5% 32.7%
25 — —/— — — — — — — — — — 2015 63/64 9.8 2.8 60.0% 75.8% 54.3% 60.7% 37.6% 67.2% 34.0%
26 — —/— — — — — — — — — — 2016 54/58 8.6 2.6 60.7% 75.7% 52.7% 60.4% 35.2% 66.8% 33.3%
27 — —/— — — — — — — — — — 2017 51/52 8.1 3.5 59.9% 76.8% 51.9% 60.9% 43.9% 66.6% 33.7%
28 — —/— — — — — — — — — — 2018 49/49 7.1 3.2 57.7% 75.3% 54.8% 72.4% 40.2% 66.6% 35.1%
29 — —/— — — — — — — — — — 2019 35/35 6.2 2.8 58.7% 73.9% 52.4% 55.0% 44.3% 65.1% 33.8%
30 — —/— — — — — — — — — — 2020 14/14 8.1 2.9 60.3% 70.3% 48.7% 64.6% 42.7% 61.7% 30.8%
31 — —/— — — — — — — — — — 2021 22/22 9.8 3.8 54.8% 74.8% 54.0% 62.6% 39.7% 65.3% 32.9%
32 — —/— — — — — — — — — — 2022 33/34 9.7 3.8 56.5% 77.3% 52.4% 64.8% 33.5% 66.5% 31.0%
33 — —/— — — — — — — — — — 2023 7/7 7.1 3.3 60.9% 72.7% 45.4% 51.2% 36.3% 61.8% 28.6%
34 — —/— — — — — — — — — — 2024 1/1 4.0 2.0 52.4% 60.6% 46.7% 75.0% 0.0% 54.0% 25.9%
Career — 35/35 2.6 4.3 62.0% 62.4% 43.9% 54.8% 38.2% 55.1% 35.3% — 393/401 8.5 3.1 58.9% 75.4% 52.5% 63.0% 38.3% 66.0% 33.0%

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 Steve Johnson
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 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 2009 1503 98.5 — — — — — — — — — — — — —
20 2018 1528 106.2 +0.19 -0.20 0.570 40.2% — — — 0.0% -3.50 — — — -0.08 2010 1530 109.8 +0.50 -2.82 0.789 45.4% — — — 0.0% -2.00 — — — -0.01
21 2019 1514 100.9 — — — — — — — — — — — — — 2011 1522 113.4 -1.94 +0.90 0.951 49.0% — — — 37.5% -0.50 0–2 0–1 — -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 2012 1574 119.2 -0.17 -4.17 0.803 47.5% +16 — — 38.1% -0.29 1–0 2–7 (22%) — +0.64
23 2021 1550 110.6 +2.69 +0.42 0.749 44.9% — — — 0.0% -3.00 — — — +0.04 2013 1668 132.4 -0.53 -4.17 0.793 47.2% +9 — — 38.1% -0.62 2–4 (33%) 5–7 (42%) — -0.27
24 2022 1530 118.4 -4.38 +0.86 0.803 45.9% +20 — — 32.3% -1.48 2–0 1–1 — -0.54 2014 1748 148.4 +1.33 -1.62 0.977 49.8% +26 -145 -104 47.3% -0.23 7–5 (58%) 11–13 (46%) — +0.22
25 2023 1458 91.9 — — — — — — — — — — — — — 2015 1950 159.6 +2.13 -0.70 1.037 50.6% +26 -258 -270 51.9% +0.16 16–8 (67%) 14–19 (42%) — -1.02
26 2024 1433 92.7 — — — — — — — — — — — — — 2016 1891 154.9 +2.76 -1.97 1.000 50.0% -21 -257 +27 52.1% +0.11 5–7 (42%) 20–15 (57%) — +0.52
27 2025 1436 101.4 — — — — — — — — — — — — — 2017 1867 153.8 +2.38 -1.66 1.009 50.3% -25 -60 -12 53.8% +0.15 9–8 (53%) 13–14 (48%) — -0.43
28 2026 1418 97.5 — — — — — — — — — — — — — 2018 1834 151.4 +2.39 -0.48 1.050 51.1% -64 +70 +48 55.3% +0.40 6–8 (43%) 14–10 (58%) — -0.37
29 — — — — — — — — — — — — — — — — 2019 1736 133.2 +0.53 -1.35 0.971 49.8% -34 +63 +93 43.8% -0.15 3–8 (27%) 7–13 (35%) — +0.58
30 — — — — — — — — — — — — — — — — 2020 1723 135.7 -1.27 -2.85 0.805 47.0% +5 — — 38.5% -0.69 4–1 (80%) 5–9 (36%) — -0.66
31 — — — — — — — — — — — — — — — — 2021 1705 134.5 +0.86 -2.04 0.950 49.4% +1 +76 +95 47.6% -0.08 3–4 (43%) 11–6 (65%) — +1.05
32 — — — — — — — — — — — — — — — — 2022 1690 133.0 +1.22 -3.58 0.925 49.2% -10 +72 +109 46.4% -0.32 5–6 (45%) 11–12 (48%) — +0.87
33 — — — — — — — — — — — — — — — — 2023 1571 106.5 -1.26 -2.63 0.748 46.0% 0 — — 29.4% -1.23 1–1 1–1 — -0.02
34 — — — — — — — — — — — — — — — — 2024 1565 107.5 -6.04 +0.81 0.563 41.0% — — — 0.0% -3.50 — — — -0.10
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 — 1990 151.4 +1.54 -1.74 0.972 49.8% -8 -61 -5 48.7% -0.05 62–62 (50%) 114–127 (47%) 99.8 +0.22

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.