Rira Kosaka
Updated
- Rating6185.97
- WTA rank#1367
- Last 106-4
- Last 302-1
- Current streak1 Loss
Match effects, last 365 days
| Date | Opponent | Opp Rank | Opp Rating | Score | Result | Effect | % of Ranking | Tour | Tournament | Note |
|---|---|---|---|---|---|---|---|---|---|---|
| 07.10.2026 | Haruka Kaji | 310 | 6673.30 | 6-2, 6-1 | Loss | 0.00 | 40.93% | WTA SINGLES / 07.10.2026 | Australia Wagga Wagga I | |
| 06.10.2026 | Sera Nishimoto | 1350 | 6190.79 | 6-4, 6-4 | Win | 154.82 | 162.45% | WTA SINGLES / 06.10.2026 | Australia Wagga Wagga I | |
| 04.10.2026 | Zoe Theodorakopoulos | 4176 | 5390.41 | 6-3, 6-0 | Win | -307.78 | 159.97% | WTA SINGLES / 04.10.2026 | Australia Wagga Wagga I | |
| 30.09.2026 | Haruna Arakawa | 1069 | 6279.43 | 6-2, 5-7, 6-3 | Loss | 85.28 | 142.19% | WTA SINGLES / 30.09.2026 | Australia Wagga Wagga | |
| 29.09.2026 | Remika Ohashi | 1506 | 6143.88 | 6-1, 6-3 | Win | 167.91 | 153.92% | WTA SINGLES / 29.09.2026 | Australia Wagga Wagga | |
| 27.09.2026 | Lai Shante | 3691 | 5561.57 | 6-2, 6-1 | Win | 0.00 | 151.57% | WTA SINGLES / 27.09.2026 | Australia Wagga Wagga | |
| 22.09.2026 | Sayaka Ishii | 517 | 6521.22 | 6-3, 6-1 | Loss | 116.44 | 48.62% | WTA SINGLES / 22.09.2026 | Japan Nanao | |
| 21.09.2026 | Natsuho Arakawa | 1456 | 6155.69 | 3-6, 6-3, 6-2 | Win | 95.72 | 180.91% | WTA SINGLES / 21.09.2026 | Japan Nanao | |
| 10.09.2026 | Kisa Yoshioka | 852 | 6350.47 | 6-2, 5-7, 6-3 | Loss | 156.33 | 121.89% | WTA SINGLES / 10.09.2026 | South Korea Yeong Wol I | |
| 09.09.2026 | Hee Won Ju | 3076 | 5759.39 | 6-2, 7-5 | Win | -138.29 | 131.95% | WTA SINGLES / 09.09.2026 | South Korea Yeong Wol I | |
| 07.9.2026 | Soo Ha Jang | 1655 | 6105.92 | 6-3, 6-7, 10-6 | Win | -20.05 | 194.90% | WTA SINGLES / 07.09.2026 | South Korea Yeong Wol I | |
| 07.9.2026 | Eunji Lee | 1284 | 6208.27 | 2-6, 6-3, 11-9 | Win | 88.73 | 151.59% | WTA SINGLES / 07.09.2026 | South Korea Yeong Wol I | |
| 06.09.2026 | Hayoung Chung | 5113 | 4930.37 | 6-2, 6-3 | Win | -537.80 | 128.94% | WTA SINGLES / 06.09.2026 | South Korea Yeong Wol I | |
| 30.08.2026 | Himari Sato | 1299 | 6203.77 | 6-4, 6-0 | Loss | -132.19 | 40.72% | WTA SINGLES / 30.08.2026 | South Korea Yeong Wol | |
| 30.08.2026 | Aditi Rawat | 3133 | 5744.91 | 6-4, 6-2 | Win | -145.53 | 122.17% | WTA SINGLES / 30.08.2026 | South Korea Yeong Wol | |
| 16.08.2026 | Xiran Sophia Lan | 1116 | 6259.69 | 6-1, 6-0 | Loss | -166.27 | 9.14% | WTA SINGLES / 16.08.2026 | China Tianjin III | |
| 16.07.2026 | Junhan Zhang | 565 | 6491.12 | 6-1, 6-4 | Loss | 124.12 | 35.99% | WTA SINGLES / 16.07.2026 | China Luan | |
| 14.07.2026 | Liuyan An | 1317 | 6198.79 | 6-4, 6-2 | Win | 200.33 | 85.07% | WTA SINGLES / 14.07.2026 | China Luan | |
| 13.07.2026 | Xin Tong Wang | 1101 | 6267.42 | 6-4, 3-6, 10-2 | Win | 125.46 | 105.52% | WTA SINGLES / 13.07.2026 | China Luan | |
| 08.07.2026 | Seo Yun Choi | 1050 | 6284.59 | 6-4, 6-1 | Loss | -69.37 | 33.84% | WTA SINGLES / 08.07.2026 | China Luan | |
| 07.07.2026 | Salakthip Ounmuang | 824 | 6363.60 | 7-6, 6-4 | Win | 277.63 | 80.60% | WTA SINGLES / 07.07.2026 | China Luan | |
| 06.07.2026 | Riko Kikawada | 1285 | 6208.09 | 6-1, 6-2 | Win | 254.62 | 79.98% | WTA SINGLES / 06.07.2026 | China Luan | |
| 05.07.2026 | Zixuan Zeng | 2966 | 5792.72 | 6-3, 6-2 | Win | -106.62 | 79.37% | WTA SINGLES / 05.07.2026 | China Luan | |
| 30.06.2026 | Yui Ohwaki | 1575 | 6126.78 | 3-6, 6-4, 10-7 | Loss | -96.69 | 101.83% | WTA SINGLES / 30.06.2026 | China Maanshan V | |
| 29.06.2026 | Alisa Ziatdinova | 2206 | 5983.15 | 6-4, 6-1 | Win | -7.82 | 75.79% | WTA SINGLES / 29.06.2026 | China Maanshan V | |
| 25.06.2026 | Ying Zhang | 712 | 6410.03 | 6-4, 5-7, 6-4 | Loss | 202.64 | 85.73% | WTA SINGLES / 25.06.2026 | Japan Sapporo I | |
| 24.06.2026 | Mutsumi Uemura | 879 | 6341.41 | 6-4, 6-2 | Win | 342.95 | 72.92% | WTA SINGLES / 24.06.2026 | Japan Sapporo I | |
| 25.05.2026 | Sera Nishimoto | 1350 | 6190.79 | 6-2, 4-6, 13-11 | Loss | -27.32 | 67.53% | WTA SINGLES / 25.05.2026 | Japan Fukui | |
| 18.05.2026 | Sayuri Hata | 2764 | 5844.59 | 3-6, 6-4, 11-9 | Loss | -367.62 | 73.12% | WTA SINGLES / 18.05.2026 | Japan Toyama I | |
| 13.05.2026 | Gaeul Jang | 826 | 6362.41 | 6-2, 6-3 | Loss | -21.56 | 21.99% | WTA SINGLES / 13.05.2026 | South Korea Andong | |
| 05.05.2026 | Moeka Miyata | 1924 | 6044.66 | 6-3, 7-6 | Loss | -234.64 | 37.21% | WTA SINGLES / 05.05.2026 | Japan Fukuoka | |
| 04.05.2026 | Mari Muto | 3840 | 5512.27 | 6-2, 7-6 | Win | -311.85 | 49.24% | WTA SINGLES / 04.05.2026 | Japan Fukuoka | |
| 22.04.2026 | Elena Micic | 337 | 6647.92 | 2-6, 6-3, 6-4 | Loss | 478.10 | 48.63% | WTA SINGLES / 22.04.2026 | Japan Miyazaki I | |
| 12.04.2026 | Shiho Tsujioka | 874 | 6343.76 | 6-2, 4-6, 10-8 | Loss | 125.65 | 48.49% | WTA SINGLES / 12.04.2026 | Japan Miyazaki | |
| 06.04.2026 | Rinko Matsuda | 532 | 6509.12 | 6-0, 6-3 | Loss | 143.16 | 9.92% | WTA SINGLES / 06.04.2026 | Japan Osaka | |
| 05.04.2026 | Ran Inaba | 2693 | 5862.94 | 6-3, 6-3 | Win | -143.02 | 39.38% | WTA SINGLES / 05.04.2026 | Japan Osaka | |
| 22.01.2026 | Rosie Cho | 1922 | 6045.01 | 6-2, 6-2 | Win | 84.04 | 22.44% | WTA SINGLES / 22.01.2026 | Australian Open Juniors Qualifying | |
| 15.01.2026 | Nehir Dogan | 1593 | 6122.05 | 6-1, 6-4 | Win | 131.09 | 21.27% | WTA SINGLES / 15.01.2026 | J300 Traralgon Qualifying |