Kokona Ishii
2025
| J60 HARMON-2 | [3] | Final |
| J60 HARMON | [4] | Quarter |
| J60 MAHDIA | [6] | Win |
| J100 TUNIS | 2R | |
| J100 SOUSSE | 2R | |
| J100 MORNINGTON | [13] | 3R |
| J200 NONTHABURI | 1R |
2024
| J300 WANJU | 1R | |
| J100 KAWAGUCHI | Semi | |
| J200 FERGANA | 1R | |
| J100 FERGANA-2 | 1R | |
| J60 EINDHOVEN | [10] | 2R |
| J60 HILLEGOM | [9] | 2R |
| J60 THEHAGUE | [11] | 2R |
| J300 NONTHABURI-2 | 1R | |
| J300 KUCHING | 2R |
2023
| J30 MATSUYAMA | [3] | Win |
| J30 GIFU | [3] | Quarter |
| J60 YAMANASHI | [3] | Quarter |
| J200 NAGOYA | 1R | |
| J100 KAWAGUCHI | Quarter | |
| J30 NOUMEA-2 | Win | |
| J30 NOUMEA | Win |
Nation
JPN
Generation
Born in 2010 (14-15 years old)
World Ranking
Junior World Ranking　415th
Year-end Junior World Ranking
- Year-end 2024 804th
- Year-end 2023 600th
Match Details
2025 J60 HARMON-2
| W | 2R | Mirai Kameoka | 6-3 6-0 |
| W | QF | Rio Otaki | 6-1 6-3 |
| W | SF | Ui Su Jeong | 6-3 6-2 |
| L | F | Azuna Ichioka | 2-6 3-6 |
2025 J60 HARMON
| W | 2R | Chae Eon Park | 6-2 6-2 |
| L | QF | Yerin Lim | 2-6 5-7 |
2025 J60 MAHDIA
| W | 1R | Selima Bendhia | 6-0 6-1 |
| W | 2R | Rana Haouas | 6-0 6-1 |
| W | QF | Lamiss Houas | 6-4 6-4 |
| W | SF | Sarra Attig | 2-6 6-4 6-2 |
| W | F | Miku Kitaoka | 6-3 4-6 6-2 |
2025 J100 TUNIS
| W | 1R | Nadine Hamrouni | 3-6 6-4 6-1 |
| L | 2R | Anna Kartseva | 1-6 1-6 |
2025 J100 SOUSSE
| W | 1R | Sasha Natalie Chimedza | 6-2 6-2 |
| L | 2R | Jiayi Lin | 4-6 1-6 |
2025 J100 MORNINGTON
| W | 2R | Abbey Nikolic | 6-2 6-0 |
| L | 3R | Ava Beck | 2-6 1-6 |
2025 J200 NONTHABURI
| L | 1R | Alisa Terentyeva | 2-6 0-6 |
2024 J300 WANJU
| L | 1R | Yihan Qu | 4-6 3-6 |
2024 J100 KAWAGUCHI
| W | 1R | Tennielle Madis | 6-3 7-6 |
| W | 2R | Yuka Naito | 3-6 7-5 6-2 |
| W | QF | Gabrielle Villegas | 6-1 4-6 6-2 |
| L | SF | Aishi Das | 1-6 5-7 |
2024 J200 FERGANA
| L | 1R | Anna Perelman | 6-4 0-6 3-6 |
2024 J100 FERGANA-2
| L | 1R | Madinakhon Salidjanova | 6-7 3-6 |
2024 J60 EINDHOVEN
| L | 2R | Leticia Solakov | 1-6 1-6 |
2024 J60 HILLEGOM
| L | 2R | Emira Diabate | 1-6 6-7 |
2024 J60 THEHAGUE
| L | 2R | Felien Willemse | 6-7 5-7 |
2024 J300 NONTHABURI-2
| L | 1R | Liya Chu | 4-6 4-6 |
2024 J300 KUCHING
| W | 1R | Nathanielle Ann Wan Xuan Lee | 6-0 6-0 |
| L | 2R | Ada Kumru | 6-7 3-6 |
2023 J30 MATSUYAMA
| W | 1R | Miyu Nishiwaki | 2-6 7-6 7-5 |
| W | 2R | Ao Tamanaha | 6-3 6-3 |
| W | QF | Ran Wakana | 6-4 6-2 |
| W | SF | Suzuna Oigawa | 5-7 6-4 7-6 |
| W | F | Risa Ueno | 6-4 6-4 |
2023 J30 GIFU
| W | 1R | Umi Tsujita | 6-0 6-1 |
| W | 2R | Miyu Nishiwaki | 6-2 6-4 |
| L | QF | Seo Yun Choi | 3-6 6-1 3-6 |
2023 J60 YAMANASHI
| W | 1R | Umi Tsujita | 6-1 6-2 |
| W | 2R | Miyu Kageyama | 7-5 6-2 |
| L | QF | Yuka Naito | 3-6 1-6 |
2023 J200 NAGOYA
| L | 1R | Mutsumi Uemura | 3-6 2-6 |
2023 J100 KAWAGUCHI
| W | 1R | Naomi Hagi | 6-3 6-2 |
| W | 2R | Kaili Demi Teso | 6-0 6-1 |
| L | QF | Amane Hattori | 3-6 6-3 4-6 |
2023 J30 NOUMEA-2
| W | 1R | Natasha Lambrianidis | 6-0 6-0 |
| W | 2R | Rosanna Chen | 6-0 6-0 |
| W | QF | Kasumi Hirayama | 6-4 6-3 |
| W | SF | Jessica Board | 6-0 6-0 |
| W | F | Rio Otaki | 6-4 6-3 |
2023 J30 NOUMEA
| W | 1R | Natasha Lambrianidis | 6-0 6-0 |
| W | 2R | Anna Hsu | 6-2 6-1 |
| W | QF | Rio Otaki | 6-3 6-1 |
| W | SF | Risa Ookoshi | 6-1 6-1 |
| W | F | Shiori Takeda | 6-2 6-1 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9586, Number of registered players: 5,950, Number of registered results: 317,378