Erika Sema
all rivalries →| 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 |
H2H data updated: 2026-09-13 00:00 UTC
Erika Sema vs Mari Osaka
Compare the head-to-head record, career totals, season-by-season performance, and match log for Erika Sema vs Mari Osaka.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
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0 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Mari Osaka | 0-6 6-1 6-4 | Erika Sema | Match data | Sep 16, 2017 | Q1 | Pan Pacific Open | Premier → modern equivalent WTA 500 | Hard |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Erika Sema | #494 | #114 | 570 | 1,510 | 2 | 9 | 18.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Mari Osaka | #1,268 | #280 | 181 | 1,500 | 0 | 1 | 0.0% | 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 | Erika Sema | Mari Osaka | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 22 | 2011 | 1–2 | 33.3% | #128 | 1,503 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 2012 | 1–5 | 16.7% | #192 | 1,479 | 0 | 0 | 2019 | 0–1 | 0.0% | #326 | 1,429 | 0 | 0 |
| 25 | 2014 | 0–1 | 0.0% | #270 | 1,465 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2016 | 0–1 | 0.0% | #373 | 1,431 | 0 | 0 | — | — | — | — | — | — | — |
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 | Erika Sema | Mari Osaka | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Yr | Hard | |||||||
| W | L | M | Win % | W | L | M | Win % | |||
| 22 | 2011 | 1 | 2 | 3 | 33.3% | — | — | — | — | — |
| 23 | 2012 | 1 | 5 | 6 | 16.7% | 2019 | 0 | 1 | 1 | 0.0% |
| 25 | 2014 | 0 | 1 | 1 | 0.0% | — | — | — | — | — |
| 27 | 2016 | 0 | 1 | 1 | 0.0% | — | — | — | — | — |
| Career | — | 2 | 9 | 11 | 18.2% | — | 0 | 1 | 1 | 0.0% |
Performance Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. 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 | Erika Sema | Mari Osaka | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 22 | 2011 | 3/3 | 0.0 | 0.7 | 84.0% | 50.0% | 43.1% | 19.8% | 25.0% | 48.6% | 30.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 2012 | 6/6 | 0.5 | 1.2 | 72.5% | 58.0% | 41.2% | 35.5% | 28.9% | 53.3% | 41.8% | 2019 | 1/1 | 0.0 | 2.0 | 60.7% | 40.5% | 50.0% | 25.0% | 75.0% | 44.3% | 40.9% |
| 25 | 2014 | 1/1 | 0.0 | 5.0 | 82.6% | 52.6% | 8.3% | 46.2% | 75.0% | 44.9% | 38.0% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2016 | 1/1 | 0.0 | 2.0 | 74.2% | 41.3% | 31.3% | 63.2% | 33.3% | 38.7% | 41.0% | — | —/— | — | — | — | — | — | — | — | — | — |
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 | Erika Sema | Mari Osaka | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 1470 | 98.3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2011 | 1503 | 98.1 | -1.29 | -2.30 | 0.599 | 39.5% | +24 | — | — | 33.3% | -2.33 | — | — | — | -0.01 | 2018 | 1447 | 99.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2012 | 1479 | 106.5 | -2.00 | +0.15 | 0.894 | 46.9% | +13 | — | — | 23.1% | -1.85 | 0–1 | — | — | -0.15 | 2019 | 1429 | 97.5 | -2.52 | -2.17 | 0.734 | 42.5% | — | — | — | 0.0% | -3.00 | — | — | — | +0.17 |
| 25 | 2014 | 1465 | 97.1 | -1.80 | -0.73 | 0.691 | 41.4% | — | — | — | 33.3% | -3.00 | 0–1 | — | — | +0.08 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2016 | 1432 | 84.1 | -4.88 | -0.94 | 0.669 | 39.6% | — | — | — | 0.0% | -5.50 | — | — | — | +0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2017 | 1416 | 98.7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2018 | 1406 | 89.4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 33 | 2022 | 1394 | 98.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1511 | 91.3 | -2.05 | -0.70 | 0.766 | 43.7% | +17 | — | — | 25.0% | -2.42 | 0–2 | — | — | -0.09 | — | 1500 | 97.8 | -2.52 | -2.17 | 0.734 | 42.5% | — | — | — | 0.0% | -3.00 | — | — | — | +17.00 |
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.
Mari Osaka
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Whitney Osuigwe | 0 | 1 | 1 | Mar 21, 2019 | H2H |