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Kosaka Rira Stats, Results & Fixtures
- Show:
 Australia: Australian Open - Singles - Main | |||||||
|---|---|---|---|---|---|---|---|
| 1/32-finals | Kosaka R. | Tupitsyna E. | 0:2 (2:6, 3:6) | details | 24.01.2026 | ||
| Australia: Australian Open - Singles - Qualification | |||||||
| Final | Kosaka R. | Pop L. V. | 2:0 (7:5, 6:4) | details | 22.01.2026 | ||
| Semi-finals | Kosaka R. | Cho R. | 2:0 (6:2, 6:2) | details | 21.01.2026 | ||
 Japan: W15 Fukui - Singles - Main | |||||||
| 1/8-finals | Nishino N. | Kosaka R. | 2:0 (6:1, 6:1) | details | 22.05.2025 | ||
| 1/16-finals | Kosaka R. | Kitahara Y. | 2:1 (7:5, 0:6, 6:2) | details | 21.05.2025 | ||
- Show:
| Australia: Australian Open - Doubles - Main | |||||||
|---|---|---|---|---|---|---|---|
| 1/16-finals | James A./Pawelska M. | Harding C./Kosaka R. | 2:1 (2:6, 6:4, 10:6) | details | 26.01.2026 | ||
| Japan: W15 Fukui - Doubles - Main | |||||||
| Quarter-finals | Kosaka R./Uemura M. | Nishino N./Tsujioka S. | 1:2 (4:6, 6:3, 5:10) | details | 22.05.2025 | ||
| 1/8-finals | Kosaka R./Uemura M. | Desvignes E. M./Ohwaki Yui | 2:0 (6:3, 7:61) | details | 20.05.2025 | ||
| Japan: W15 Kawaguchi - Doubles - Main | |||||||
| 1/8-finals | Miyamoto A./Rioux L. | Ichioka A./Kosaka R. | 2:0 (6:2, 6:3) | details | 14.06.2023 | ||
| Japan: W15 Fukui - Doubles - Main | |||||||
| 1/8-finals | Kosaka R./Sawashiro K. | Li Y./Okuwaki R. | 0:2 (2:6, 2:6) | details | 27.04.2023 | ||
