Ayaka Koga
Generation
Born in 2004 (20-21 years old)
Year-end Junior World Ranking
- Year-end 2021 1171th
- Year-end 2020 1045th
- Year-end 2019 1314th
- Year-end 2018 1251th
Match Details
| L | 1R | Olga Molchanova | 4-6 3-6 |
| W | 1R | Aya Orenstain | 4-0 4-1 |
| L | 2R | Ida Johansson | 1-6 6-7 |
| W | 1R | Taleia Tuatao | 6-2 6-2 |
| W | 2R | Ema Miyaura | 6-3 7-5 |
| L | 3R | Li Hsin Lin | 4-6 1-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9852, Number of registered players: 6,147, Number of registered results: 340,807