WTA Tour
Rira Kosaka
Back after 7w offUnranked
WTA World Ranking - 0 pts
Player Archetype
⚙️ Grinder
Wears opponents down with relentless consistency and deep margins. Doesn't flash the most winners but rarely misses, extending rallies until the opponent cracks under pressure.
Relentless consistencyDeep court positioningHigh rally toleranceMental fortitude
Strong against
🏃 Pusher70%
🛡️ The Spoiler45%
Weak against
👑 The Complete Package27%
🪃 Counterpuncher31%
Player Overview
Career
6
Wins
9
Losses
40%
Win %
0
Titles
Win / Loss by Year
Career record broken down by surface
| Year | Summary | Clay | Hard | Grass |
|---|---|---|---|---|
| 2026 | 6/9 | - | 6/9 | - |
| Career | 6/9 | - | 6/9 | - |
Serve & Return
Averages · Last 90 days (11 matches)
Serve
1st Serve In-
1st Serve Pts Won-
2nd Serve Pts Won-
Break Points Saved-
Aces / Match0.4
Double Faults / Match5.2
Avg 1st Serve-
Max Serve Speed-
Return
1st Return Pts Won-
2nd Return Pts Won-
Break Points Converted-
Rally
Winners / Match-
Unforced Errors / Match-
Net Pts Won %-
Total Pts Won %-
Recent Matches
Last 10 results
FormLLWLW
| Date | Tournament | Round | Opponent | Surface | Score | Result |
|---|---|---|---|---|---|---|
| Jul 16, 2026 | W15 Luan | 2nd Round | Junhan Zhang | Hard | 16 46 | L |
| Jul 16, 2026 | Luan 4 ITF | Round of 16 | Juliet Jia Wen Zhang | Hard | 16 46 | L |
| Jul 14, 2026 | W15 Luan | 1st Round | Liuyan An | Hard | 64 62 | W |
| Jul 8, 2026 | W15 Luan | 1st Round | Seo Yun Choi | Hard | 46 16 | L |
| Jul 7, 2026 | Luan 2 ITF | Salakthip Ounmuang | Hard | 76 64 | W | |
| Jul 6, 2026 | Luan 2 ITF | Riko Kikawada | Hard | 61 62 | W | |
| Jul 5, 2026 | Luan 2 ITF | Zixuan Zeng | Hard | 63 62 | W | |
| Jun 30, 2026 | Maanshan 6 ITF | Yui Ohwaki | Hard | 63 46 710 | L | |
| Jun 29, 2026 | Maanshan 6 ITF | Alisa Ziatdinova | Hard | 64 61 | W | |
| Jun 25, 2026 | W15 Sapporo | 2nd Round | Ying Zhang | Hard | 46 75 46 | L |
Rira Kosaka FAQ
Rira Kosaka is from Japan.
Rira Kosaka has a career win-loss record of 6-9 (40% win rate).
Rira Kosaka's strongest surface by win rate is hard, with a 6-9 record (40%). Full career splits: hard 6-9 (40%).
Rira Kosaka has won 5 of the last 10 completed matches (50%). The current run is 2 straight losses.