WTA Tour
Rira Kosaka
Beat 3 favoritesUnranked
WTA World Ranking - 0 pts
Player Archetype
🧱 The Wall
An impenetrable defender who retrieves everything and forces opponents into errors. Rarely beats themselves, with an elite return game that makes every service game a battle.
Elite returnerLow unforced errorsExtreme consistencyPhysical endurance
Strong against
🏃 Pusher73%
⚙️ Grinder56%
Weak against
🏹 Frontrunner29%
👑 The Complete Package33%
Player Overview
Career
19
Wins
19
Losses
50%
Win %
0
Titles
Win / Loss by Year
Career record broken down by surface
| Year | Summary | Clay | Hard | Grass |
|---|---|---|---|---|
| 2026 | 19/18 | - | 17/16 | - |
| Career | 19/18 | - | 17/16 | - |
Serve & Return
Averages · Last 90 days (16 matches)
Serve
1st Serve In-
1st Serve Pts Won-
2nd Serve Pts Won-
Break Points Saved-
Aces / Match0.7
Double Faults / Match4.3
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
FormLWWLW
| Date | Tournament | Round | Opponent | Surface | Score | Result |
|---|---|---|---|---|---|---|
| Oct 7, 2026 | W35 Wagga Wagga | 1st Round | Haruka Kaji | Hard | 26 16 | L |
| Oct 5, 2026 | W35 Wagga Wagga | 3rd Round Qualifying | Sera Nishimoto | Hard | 64 64 | W |
| Oct 5, 2026 | W35 Wagga Wagga | 2nd Round Qualifying | Zoe Theodorakopoulos | Hard | 63 60 | W |
| Sep 30, 2026 | W35 Wagga Wagga | 1st Round | Haruna Arakawa | Hard | 26 75 36 | L |
| Sep 29, 2026 | W35 Wagga Wagga | 3rd Round Qualifying | Remika Ohashi | Hard | 61 63 | W |
| Sep 28, 2026 | W35 Wagga Wagga | 2nd Round Qualifying | Shante Lai | Hard | 62 61 | W |
| Sep 22, 2026 | W50 Nanao | 3rd Round Qualifying | Sayaka Ishii | Carpet | 36 16 | L |
| Sep 21, 2026 | W50 Nanao | 1st Round Qualifying | Natsuho Arakawa | Carpet | 36 63 62 | W |
| Sep 10, 2026 | W15 Yeongwol | 2nd Round | Kisa Yoshioka | Hard | 26 75 36 | L |
| Sep 9, 2026 | W15 Yeongwol | 1st Round | Hee Won Ju | Hard | 62 75 | W |
Rira Kosaka FAQ
Rira Kosaka is from Japan.
Rira Kosaka has a career win-loss record of 19-19 (50% win rate).
Rira Kosaka's strongest surface by win rate is hard, with a 17-16 record (52%). Full career splits: hard 17-16 (52%).
Rira Kosaka has won 6 of the last 10 completed matches (60%).