Shion Itsusaki
2025
| J300Kuching | [5] | (continue) |
| J300Nonthaburi | [9] | 3R |
| J200Nonthaburi | [7] | Quarter |
| Australian Open Junior | 1R | |
| J300Traralgon | 2R |
2024
| J200Hongkong | [8] | Win |
| J100Hongkong | [4] | Win |
| J30Osaka | [1] | Win |
| J300Wanju | [16] | 3R |
| J100Kawaguchi | [6] | Win |
| J200Chuncheon | 1R | |
| J60Mikicity-2 | [5] | Win |
| J30Kurume | [1] | Win |
2023
| J30Osaka | [1] | Semi |
| J60Mikicity-2 | [3] | Semi |
| J60Mikicity | [3] | Semi |
2022
| Ai Sugiyama Cup | [5] | Quarter |
Nation
JPN
Generation
Born in 2007 (17-18 years old)
World Ranking
Junior World Ranking　68th
ATP Ranking　1653th
Year-end Junior World Ranking
- Year-end 2024 96th
- Year-end 2023 630th
- Year-end 2022 748th
- Year-end 2021 1312th
Match Details
2025 J300Kuching
2025 J300Nonthaburi
| W | 2R | Aaron Gabet | 1-6 6-1 6-2 |
| L | 3R | Kuan-Shou Chen | 2-6 4-6 |
2025 J200Nonthaburi
| W | 2R | Pavel Skvortcov | 3-6 6-3 6-3 |
| W | 3R | Jake Dembo | 6-4 6-4 |
| L | QF | Savva Rybkin | 2-6 3-6 |
2025 Australian Open Junior
| L | 1R | Gabriele Crivellaro | 1-6 6-7 |
2025 J300Traralgon
| W | 1R | Ethan Domingo | 6-2 6-4 |
| L | 2R | Maxwell Exsted | 4-6 1-6 |
2024 J200Hongkong
| W | 1R | Yen-Chun Wang | 6-3 2-6 6-1 |
| W | 2R | Ruslan Kastsiukevich | 6-2 1-6 6-2 |
| W | QF | Moobeen Kim | 6-3 6-2 |
| W | SF | Ilya Maltsev | 7-6 6-1 |
| W | F | Hitesh Chauhan | 6-3 6-1 |
2024 J100Hongkong
| W | 1R | Haiyi Qin | 6-1 6-4 |
| W | 2R | Jeffrey Strydom | 6-2 6-0 |
| W | QF | Jacob Lee | 6-1 6-1 |
| W | SF | Yauheni Bursau | 6-2 6-2 |
| W | F | Ilya Maltsev | 7-5 5-7 6-2 |
2024 J30Osaka
| W | 1R | Riku Kurashita | 6-1 6-0 |
| W | 2R | Sota Miyazaki | 6-2 6-1 |
| W | QF | Ryo Kikawa | 6-4 6-0 |
| W | SF | Sohji Nishiyama | 6-3 7-5 |
| W | F | Yuki Okahashi | 6-1 4-6 6-3 |
2024 J300Wanju
| W | 1R | Varun Verma | 6-3 7-6 |
| W | 2R | Wenbo Bai | 6-4 6-4 |
| L | 3R | Yeonsu Jeong | 3-6 4-6 |
2024 J100Kawaguchi
| W | 1R | Kango Endoh | 6-0 6-2 |
| W | 2R | Naoto Tomizawa | 6-3 7-6 |
| W | QF | Wenbo Bai | 6-1 6-2 |
| W | SF | Ren Matsumura | 7-6 6-3 |
| W | F | Hyu Kawanishi | 6-1 6-2 |
2024 J200Chuncheon
| L | 1R | Moobeen Kim | 6-2 2-6 5-7 |
2024 J60Mikicity-2
| W | 1R | Thanathip Poti | 6-1 6-4 |
| W | 2R | Maki Takei | 6-3 6-1 |
| W | QF | Rafalentino Ali Da Costa | 6-3 6-3 |
| W | SF | Kanata Ozaki | 6-7 6-3 6-2 |
| W | F | Kaigaoge Kang | - - - |
2024 J30Kurume
| W | 1R | Sota Kagawa | 6-3 6-2 |
| W | 2R | Ko Nagashima | 6-2 6-2 |
| W | QF | Ryuto Suzuki | 6-3 6-1 |
| W | SF | Ryunosuke Kabasawa | 6-2 7-5 |
| W | F | Naoto Tomizawa | 7-5 6-4 |
2023 J30Osaka
| W | 1R | Haruki Mizuno | 6-1 6-1 |
| W | 2R | Hakuto Imanishi | 6-3 6-0 |
| W | QF | Haruki Oshita | 6-1 6-2 |
| L | SF | Soma Fukuhara | 2-6 2-6 |
2023 J60Mikicity-2
| W | 1R | Yuto Miyagawa | 7-6 6-1 |
| W | 2R | Kai Miyatake | 6-3 6-2 |
| W | QF | Yuki Okahashi | 6-1 6-4 |
| L | SF | Kazuma Kimura | 6-7 1-6 |
2023 J60Mikicity
| W | 1R | Haruto Kusunoki | 3-6 6-2 6-1 |
| W | 2R | Yuta Dokai | 6-4 6-0 |
| W | QF | Gaku Nayuki | 6-4 7-6 |
| L | SF | Kazuma Kimura | 6-2 4-6 0-6 |
2022 Ai Sugiyama Cup
| W | 1R | Hirai Nagashima | 7-5 6-0 |
| W | 2R | Ryusei Miyazato | 7-5 6-3 |
| L | QF | Hikaru Takahashi | 4-6 3-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5774, Number of registered players: 3,011, Number of registered results: 222,093