H2H data updated: 2026-09-14 00:00 UTC

Naomi Osaka vs Katerina Siniakova H2H: 3-1

Naomi Osaka holds a 3–1 lead over Katerina Siniakova in their WTA head-to-head. Across 4 main-draw meetings, Naomi Osaka leads 2–0 on hard courts, while Katerina Siniakova leads 1–0 on clay. Most recently, Naomi Osaka won the 2026 US Open second round 6-2 5-7 6-1.

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Naomi Osaka
Japan Age 28 Right-Handed 180 cm / 5'11"
H2H
3 – 1
4 main-draw meetings
Katerina Siniakova
Czech Republic Age 30 Right-Handed 174 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Naomi Osaka #13 6-2 5-7 6-1 Katerina Siniakova #42 Match data Sep 3, 2026 R64 US Open Grand Slam Hard
Naomi Osaka #53 6-3 6-2 Katerina Siniakova #81 Match data Jul 2, 2025 R64 Wimbledon Grand Slam Grass
Katerina Siniakova #42 6-4 6-2 Naomi Osaka #1 Match data Jun 1, 2019* R32 Roland Garros Grand Slam Clay
Naomi Osaka #51 6-4 6-0 Katerina Siniakova #49 Match data Feb 14, 2018* R64 Qatar Open Premier 5 → modern equivalent WTA 1000 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
Naomi Osaka #13 #1 7,985 2,179 251 136 64.9% 4 2 0 1 1 8
Katerina Siniakova #42 #27 1,718 1,893 228 246 48.1% 0 0 0 0 5 5

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 Naomi Osaka Katerina Siniakova
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 2014 2–2 50.0% #260 1,530 0 0 — — — — — — —
17 2015 0–2 0.0% #144 1,508 0 0 2013 0–1 0.0% #171 1,488 0 0
18 2016 20–13 60.6% #48 1,700 0 0 2014 4–6 40.0% #84 1,521 0 0
19 2017 19–22 46.3% #68 1,695 0 0 2015 13–20 39.4% #102 1,522 0 0
20 2018 40–20 66.7% #5 1,902 1 2 2016 18–18 50.0% #52 1,765 0 0
21 2019 40–13 75.5% #3 2,047 2 5 2017 23–23 50.0% #49 1,695 0 2
22 2020 16–3 84.2% #3 2,111 3 6 2018 26–22 54.2% #31 1,779 0 2
23 2021 20–8 71.4% #13 2,040 4 7 2019 20–28 41.7% #58 1,674 0 2
24 2022 15–11 57.7% #42 1,933 4 7 2020 6–13 31.6% #59 1,701 0 2
25 — — — — — — — 2021 22–17 56.4% #49 1,801 0 2
26 2024 21–17 55.3% #57 1,872 4 7 2022 17–19 47.2% #49 1,762 0 3
27 2025 31–14 68.9% #16 1,965 4 8 2023 22–17 56.4% #45 1,807 0 5
28 2026 27–11 71.1% #13 2,052 4 8 2024 26–26 50.0% #45 1,802 0 5
29 — — — — — — — 2025 17–20 45.9% #48 1,883 0 5
30 — — — — — — — 2026 14–16 46.7% #42 1,820 0 5

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 Naomi Osaka Katerina Siniakova
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 %
16 2014 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
17 2015 0 2 2 0.0% — — — — — — — — 2013 0 1 1 0.0% — — — — — — — —
18 2016 18 11 29 62.1% 2 2 4 50.0% — — — — 2014 4 5 9 44.4% 0 1 1 0.0% — — — —
19 2017 13 13 26 50.0% 2 5 7 28.6% 4 4 8 50.0% 2015 6 12 18 33.3% 4 5 9 44.4% 3 3 6 50.0%
20 2018 29 13 42 69.0% 5 4 9 55.6% 6 3 9 66.7% 2016 10 10 20 50.0% 6 5 11 54.5% 2 3 5 40.0%
21 2019 30 7 37 81.1% 9 4 13 69.2% 1 2 3 33.3% 2017 12 14 26 46.2% 10 6 16 62.5% 1 3 4 25.0%
22 2020 16 3 19 84.2% — — — — — — — — 2018 17 14 31 54.8% 7 6 13 53.8% 2 2 4 50.0%
23 2021 18 5 23 78.3% 2 3 5 40.0% — — — — 2019 10 18 28 35.7% 9 7 16 56.3% 1 3 4 25.0%
24 2022 14 9 23 60.9% 1 2 3 33.3% — — — — 2020 1 9 10 10.0% 5 4 9 55.6% — — — —
25 — — — — — — — — — — — — — 2021 9 12 21 42.9% 7 3 10 70.0% 6 2 8 75.0%
26 2024 13 9 22 59.1% 5 5 10 50.0% 3 3 6 50.0% 2022 11 11 22 50.0% 6 5 11 54.5% 0 3 3 0.0%
27 2025 25 8 33 75.8% 3 3 6 50.0% 3 3 6 50.0% 2023 16 14 30 53.3% 0 1 1 0.0% 6 2 8 75.0%
28 2026 12 6 18 66.7% 7 3 10 70.0% 8 2 10 80.0% 2024 17 17 34 50.0% 4 6 10 40.0% 5 3 8 62.5%
29 — — — — — — — — — — — — — 2025 14 11 25 56.0% 0 5 5 0.0% 3 4 7 42.9%
30 — — — — — — — — — — — — — 2026 8 9 17 47.1% 4 4 8 50.0% 2 3 5 40.0%
Career — 190 88 278 68.3% 36 31 67 53.7% 25 17 42 59.5% — 135 157 292 46.2% 62 58 120 51.7% 31 31 62 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 350/386 of Naomi Osaka's and 446/476 of Katerina Siniakova'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 Naomi Osaka Katerina Siniakova
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%
16 2014 4/4 4.3 1.8 55.4% 65.3% 44.8% 33.6% 49.2% 55.5% 41.0% — —/— — — — — — — — — —
17 — —/— — — — — — — — — — 2013 1/1 5.0 11.0 61.3% 56.1% 38.9% 50.0% 71.4% 49.5% 44.6%
18 2016 33/33 4.8 2.5 55.2% 69.6% 48.3% 54.8% 51.5% 59.9% 43.8% 2014 10/10 1.7 4.4 61.7% 63.9% 42.1% 54.2% 38.1% 55.3% 45.6%
19 2017 40/41 4.2 2.5 55.9% 67.2% 45.7% 45.6% 46.3% 57.5% 40.2% 2015 26/33 1.7 5.5 66.1% 62.0% 50.4% 53.7% 47.1% 58.1% 41.4%
20 2018 55/60 4.7 2.1 59.7% 71.1% 48.8% 55.8% 55.7% 61.9% 45.3% 2016 34/37 2.7 4.0 58.7% 63.5% 43.7% 51.7% 50.0% 55.3% 43.5%
21 2019 50/53 7.0 1.9 60.2% 73.1% 47.9% 56.3% 51.0% 63.1% 44.4% 2017 45/46 2.2 3.8 62.4% 61.8% 42.4% 54.6% 49.1% 54.7% 43.6%
22 2020 18/19 7.8 2.5 59.0% 76.0% 53.0% 64.2% 43.2% 66.5% 42.5% 2018 48/48 4.2 4.0 59.3% 64.0% 45.4% 48.7% 46.8% 56.4% 43.2%
23 2021 21/28 6.5 2.8 53.5% 76.2% 52.2% 59.4% 52.6% 64.9% 43.6% 2019 47/48 2.8 2.9 60.4% 62.6% 46.1% 50.1% 46.4% 56.0% 45.3%
24 2022 22/26 5.7 2.5 51.4% 76.9% 47.4% 61.9% 44.1% 62.7% 41.4% 2020 19/19 1.7 3.1 65.8% 55.8% 42.7% 50.3% 46.1% 51.4% 40.6%
25 — —/— — — — — — — — — — 2021 39/39 1.7 5.9 61.3% 64.5% 45.4% 54.1% 55.5% 57.2% 46.6%
26 2024 36/38 6.5 2.7 54.0% 75.1% 51.1% 56.3% 50.1% 64.0% 40.4% 2022 32/36 1.5 4.9 64.5% 58.7% 41.3% 52.7% 50.7% 52.6% 42.8%
27 2025 34/46 6.6 2.9 56.9% 74.7% 49.3% 52.5% 53.6% 63.5% 45.2% 2023 38/39 2.3 5.1 62.6% 62.5% 44.4% 45.2% 43.9% 55.8% 45.8%
28 2026 37/38 5.9 2.5 58.2% 72.9% 49.6% 52.0% 47.3% 63.2% 42.7% 2024 50/52 1.8 5.3 61.6% 63.1% 44.7% 45.5% 51.0% 56.0% 45.9%
29 — —/— — — — — — — — — — 2025 28/38 1.8 5.6 61.3% 63.9% 41.8% 51.3% 47.9% 55.4% 44.6%
30 — —/— — — — — — — — — — 2026 29/30 1.8 4.7 61.5% 64.3% 45.2% 58.2% 44.6% 56.9% 44.0%
Career — 350/388 5.8 2.4 56.9% 72.6% 48.9% 54.7% 50.3% 62.3% 43.1% — 446/476 2.3 4.5 61.8% 62.6% 44.4% 51.0% 48.3% 55.6% 44.3%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 Naomi Osaka Katerina Siniakova
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
16 2014 1531 113.5 +0.17 +0.57 0.923 48.4% +17 — — 45.5% 0.00 2–1 (67%) 1–0 — -0.19 — — — — — — — — — — — — — — — —
17 2015 1509 102.0 — — — — — — — 20.0% -1.80 0–1 — — 0.00 2013 1489 101.5 -2.26 +1.26 0.882 47.3% — — — 33.3% -1.00 0–1 — — -0.01
18 2016 1700 128.3 +3.18 +0.66 1.091 51.9% -10 -101 — 60.0% +0.65 4–5 (44%) 5–6 (45%) 101.0 +0.04 2014 1521 119.3 -0.71 -0.45 1.019 50.3% +20 — — 43.5% -0.22 1–2 (33%) 2–2 (50%) 100.8 +0.46
19 2017 1696 132.1 +1.30 -2.12 0.947 48.9% +6 -84 -47 45.8% -0.18 5–4 (56%) 2–5 (29%) 97.8 -1.51 2015 1523 112.2 -0.42 -0.27 0.987 49.9% -25 +16 +104 41.3% -0.43 4–5 (44%) 3–6 (33%) 96.6 +0.31
20 2018 1902 160.7 +5.21 +2.94 1.190 53.8% +17 -236 -168 67.5% +1.35 4–3 (57%) 4–4 (50%) 99.8 -2.09 2016 1765 130.6 -0.14 +0.26 0.975 49.6% -53 -89 -86 49.4% -0.07 7–6 (54%) 3–2 (60%) 103.3 -2.24
21 2019 2047 154.9 +5.80 +1.63 1.202 53.6% +30 -229 -350 68.4% +1.22 17–2 (89%) 10–4 (71%) 116.1 +0.60 2017 1695 133.7 -0.94 +0.48 0.963 49.3% -23 +84 -66 50.0% -0.08 11–9 (55%) 4–2 (67%) 103.3 -1.76
22 2020 2112 156.0 +6.66 +1.24 1.267 54.0% +19 — — 71.7% +1.61 9–1 (90%) 3–5 (38%) 103.1 -0.42 2018 1780 137.2 -0.09 +0.44 0.989 49.7% -11 -32 -109 53.0% +0.04 13–10 (57%) 10–8 (56%) 102.2 +0.17
23 2021 2040 154.1 +6.00 +1.08 1.240 54.0% +82 -235 — 72.2% +1.43 3–3 (50%) 2–2 (50%) 95.5 -0.04 2019 1675 133.8 -0.06 +1.86 1.029 50.5% -18 +94 -38 42.3% -0.28 8–11 (42%) 5–5 (50%) 96.9 -0.30
24 2022 1934 147.8 +4.77 +0.02 1.112 52.0% +91 -156 — 57.4% +0.81 4–1 (80%) 0–2 — -0.62 2020 1701 130.6 -3.03 -0.58 0.836 46.1% -49 +82 — 33.3% -1.10 2–2 (50%) 2–0 — -1.42
25 — — — — — — — — — — — — — — — — 2021 1802 144.9 +1.25 +3.21 1.089 51.8% -109 +51 -13 54.7% +0.44 9–8 (53%) 8–3 (73%) 107.7 -2.85
26 2024 1873 146.8 +5.89 -1.17 1.122 52.2% +76 -98 -157 56.3% +0.71 3–5 (38%) 4–8 (33%) 94.1 -2.05 2022 1763 133.3 -2.97 +0.63 0.904 47.8% -22 +55 -76 46.2% -0.36 8–6 (57%) 3–3 (50%) 101.6 -1.47
27 2025 1966 153.3 +4.79 +1.97 1.240 54.1% +59 -128 -253 65.4% +1.12 11–9 (55%) 10–6 (63%) 101.6 +0.92 2023 1808 135.0 -0.13 +2.23 1.035 50.6% -25 — -7 55.8% +0.38 4–5 (44%) 5–6 (45%) 98.4 -1.66
28 2026 2053 158.1 +5.15 +1.24 1.160 53.0% +1 -104 -111 66.7% +1.12 8–2 (80%) 7–3 (70%) 109.0 -0.80 2024 1803 141.8 -0.23 +2.61 1.042 50.8% -30 -33 +120 55.1% +0.39 7–13 (35%) 4–8 (33%) 87.5 -1.28
29 — — — — — — — — — — — — — — — — 2025 1883 142.0 -0.67 +0.92 1.002 50.0% +19 -217 +75 48.8% -0.13 4–8 (33%) 5–4 (56%) 94.0 -1.50
30 — — — — — — — — — — — — — — — — 2026 1821 142.6 +0.08 +1.58 1.022 50.5% +25 -134 +86 50.0% -0.07 4–7 (36%) 4–4 (50%) 95.9 -0.57
Career — 2179 157.0 +4.72 +0.85 1.143 52.6% +35 -157 -155 62.7% +0.95 70–37 (65%) 48–45 (52%) 107.0 -1.65 — 1894 141.3 -0.47 +1.23 0.997 49.9% -24 +8 +14 49.1% -0.05 82–93 (47%) 58–53 (52%) 97.7 -2.99

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.