H2H data updated: 2026-09-14 00:00 UTC
Naomi Osaka holds a 1–0 lead over Erika Sema in their WTA head-to-head. Across 1 main-draw meeting, Naomi Osaka leads 1–0 on hard courts. Most recently, Naomi Osaka won the 2014 Japan Women's Open round of 32 6-1 4-6 6-0.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Naomi Osaka | 6-1 4-6 6-0 | Erika Sema | Match data | Oct 9, 2014* | R32 | Japan Women's Open | International → modern equivalent WTA 250 | 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.
| 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 |
| Erika Sema | #494 | #114 | 570 | 1,510 | 2 | 9 | 18.2% | 0 | 0 | 0 | 0 | 0 | 0 |
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 | Erika Sema | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | 2014 | 2–2 | 50.0% | #260 | 1,530 | 0 | 0 | — | — | — | — | — | — | — |
| 17 | 2015 | 0–2 | 0.0% | #144 | 1,508 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 2016 | 20–13 | 60.6% | #48 | 1,700 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 2017 | 19–22 | 46.3% | #68 | 1,695 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2018 | 40–20 | 66.7% | #5 | 1,902 | 1 | 2 | — | — | — | — | — | — | — |
| 21 | 2019 | 40–13 | 75.5% | #3 | 2,047 | 2 | 5 | — | — | — | — | — | — | — |
| 22 | 2020 | 16–3 | 84.2% | #3 | 2,111 | 3 | 6 | 2011 | 1–2 | 33.3% | #128 | 1,503 | 0 | 0 |
| 23 | 2021 | 20–8 | 71.4% | #13 | 2,040 | 4 | 7 | 2012 | 1–5 | 16.7% | #192 | 1,479 | 0 | 0 |
| 24 | 2022 | 15–11 | 57.7% | #42 | 1,933 | 4 | 7 | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | 2014 | 0–1 | 0.0% | #270 | 1,465 | 0 | 0 |
| 26 | 2024 | 21–17 | 55.3% | #57 | 1,872 | 4 | 7 | — | — | — | — | — | — | — |
| 27 | 2025 | 31–14 | 68.9% | #16 | 1,965 | 4 | 8 | 2016 | 0–1 | 0.0% | #373 | 1,431 | 0 | 0 |
| 28 | 2026 | 27–11 | 71.1% | #13 | 2,052 | 4 | 8 | — | — | — | — | — | — | — |
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 | Erika Sema | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| 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% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2016 | 18 | 11 | 29 | 62.1% | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2017 | 13 | 13 | 26 | 50.0% | 2 | 5 | 7 | 28.6% | 4 | 4 | 8 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 29 | 13 | 42 | 69.0% | 5 | 4 | 9 | 55.6% | 6 | 3 | 9 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 30 | 7 | 37 | 81.1% | 9 | 4 | 13 | 69.2% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2020 | 16 | 3 | 19 | 84.2% | — | — | — | — | — | — | — | — | 2011 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — |
| 23 | 2021 | 18 | 5 | 23 | 78.3% | 2 | 3 | 5 | 40.0% | — | — | — | — | 2012 | 1 | 5 | 6 | 16.7% | — | — | — | — | — | — | — | — |
| 24 | 2022 | 14 | 9 | 23 | 60.9% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2014 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 26 | 2024 | 13 | 9 | 22 | 59.1% | 5 | 5 | 10 | 50.0% | 3 | 3 | 6 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2025 | 25 | 8 | 33 | 75.8% | 3 | 3 | 6 | 50.0% | 3 | 3 | 6 | 50.0% | 2016 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 28 | 2026 | 12 | 6 | 18 | 66.7% | 7 | 3 | 10 | 70.0% | 8 | 2 | 10 | 80.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 190 | 88 | 278 | 68.3% | 36 | 31 | 67 | 53.7% | 25 | 17 | 42 | 59.5% | — | 2 | 9 | 11 | 18.2% | — | — | — | — | — | — | — | — |
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 11/11 of Erika Sema'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 | Erika Sema | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | — | —/— | — | — | — | — | — | — | — | — | — |
| 18 | 2016 | 33/33 | 4.8 | 2.5 | 55.2% | 69.6% | 48.3% | 54.8% | 51.5% | 59.9% | 43.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 19 | 2017 | 40/41 | 4.2 | 2.5 | 55.9% | 67.2% | 45.7% | 45.6% | 46.3% | 57.5% | 40.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2018 | 55/60 | 4.7 | 2.1 | 59.7% | 71.1% | 48.8% | 55.8% | 55.7% | 61.9% | 45.3% | — | —/— | — | — | — | — | — | — | — | — | — |
| 21 | 2019 | 50/53 | 7.0 | 1.9 | 60.2% | 73.1% | 47.9% | 56.3% | 51.0% | 63.1% | 44.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2020 | 18/19 | 7.8 | 2.5 | 59.0% | 76.0% | 53.0% | 64.2% | 43.2% | 66.5% | 42.5% | 2011 | 3/3 | 0.0 | 0.7 | 84.0% | 50.0% | 43.1% | 19.8% | 25.0% | 48.6% | 30.8% |
| 23 | 2021 | 21/28 | 6.5 | 2.8 | 53.5% | 76.2% | 52.2% | 59.4% | 52.6% | 64.9% | 43.6% | 2012 | 6/6 | 0.5 | 1.2 | 72.5% | 58.0% | 41.2% | 35.5% | 28.9% | 53.3% | 41.8% |
| 24 | 2022 | 22/26 | 5.7 | 2.5 | 51.4% | 76.9% | 47.4% | 61.9% | 44.1% | 62.7% | 41.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 25 | — | —/— | — | — | — | — | — | — | — | — | — | 2014 | 1/1 | 0.0 | 5.0 | 82.6% | 52.6% | 8.3% | 46.2% | 75.0% | 44.9% | 38.0% |
| 26 | 2024 | 36/38 | 6.5 | 2.7 | 54.0% | 75.1% | 51.1% | 56.3% | 50.1% | 64.0% | 40.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2025 | 34/46 | 6.6 | 2.9 | 56.9% | 74.7% | 49.3% | 52.5% | 53.6% | 63.5% | 45.2% | 2016 | 1/1 | 0.0 | 2.0 | 74.2% | 41.3% | 31.3% | 63.2% | 33.3% | 38.7% | 41.0% |
| 28 | 2026 | 37/38 | 5.9 | 2.5 | 58.2% | 72.9% | 49.6% | 52.0% | 47.3% | 63.2% | 42.7% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 350/388 | 5.8 | 2.4 | 56.9% | 72.6% | 48.9% | 54.7% | 50.3% | 62.3% | 43.1% | — | 11/11 | 0.3 | 1.5 | 76.7% | 53.8% | 37.8% | 34.7% | 32.4% | 49.9% | 38.4% |
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 | Erika Sema | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 2011 | 1503 | 98.1 | -1.29 | -2.30 | 0.599 | 39.5% | +24 | — | — | 33.3% | -2.33 | — | — | — | -0.01 |
| 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 | 2012 | 1479 | 106.5 | -2.00 | +0.15 | 0.894 | 46.9% | +13 | — | — | 23.1% | -1.85 | 0–1 | — | — | -0.15 |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2014 | 1465 | 97.1 | -1.80 | -0.73 | 0.691 | 41.4% | — | — | — | 33.3% | -3.00 | 0–1 | — | — | +0.08 |
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 2016 | 1432 | 84.1 | -4.88 | -0.94 | 0.669 | 39.6% | — | — | — | 0.0% | -5.50 | — | — | — | +0.07 |
| 28 | 2026 | 2053 | 158.1 | +5.15 | +1.24 | 1.160 | 53.0% | +2 | -104 | -111 | 66.7% | +1.12 | 8–2 (80%) | 7–3 (70%) | 109.0 | -0.80 | 2017 | 1416 | 98.7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2018 | 1406 | 89.4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1394 | 98.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | 1511 | 91.3 | -2.05 | -0.70 | 0.766 | 43.7% | +17 | — | — | 25.0% | -2.42 | 0–2 | — | — | -0.09 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Elise Mertens | 7 | 4 | 11 | Sep 5, 2026 | H2H |
| Karolina Muchova | 4 | 4 | 8 | Jul 7, 2026 | H2H |
| Elina Svitolina | 5 | 3 | 8 | Aug 5, 2025 | H2H |
| Angelique Kerber | 2 | 5 | 7 | Jul 29, 2024 | H2H |
| Karolina Pliskova | 2 | 5 | 7 | Feb 16, 2024 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Magda Linette | 0 | 1 | 1 | Sep 15, 2016 | H2H |
| Naomi Osaka | 0 | 1 | 1 | Oct 9, 2014 | H2H |
| Samantha Stosur | 0 | 1 | 1 | Oct 11, 2012 | H2H |
| Coco Vandeweghe | 0 | 1 | 1 | Jul 30, 2012 | H2H |
| Dominika Cibulkova | 0 | 1 | 1 | Jul 13, 2012 | H2H |