Christopher Kosei Ono
2024
2023
| J30 MATSUYAMA | [4] | 1R |
| J30 GIFU | [5] | Quarter |
| J30 CHIGASAKI | [4] | Quarter |
| J60 YAMANASHI | [5] | Quarter |
| J500 OSAKA | 2R | |
| J100 KAWAGUCHI | 1R | |
| J100 ANDONG | 1R | |
| J100 KUALALUMPUR | 1R | |
| J100 SARAWAK | 2R | |
| J60 SUNCHANG | 2R | |
| J60 ANDONG | 2R | |
| J30 KURUME | [7] | 2R |
2022
| J5 MATSUYAMA | [7] | 1R |
| J5 GIFU | 2R | |
| J5 CHIGASAKI | [7] | Semi |
| AI SUGIYAMA CUP | [7] | Semi |
| J5 YAMANASHI | [7] | 2R |
| J2 NAGOYA | 2R | |
| J3 KAWAGUCHI | 1R | |
| J4 MIKICITY-2 | 1R | |
| J4 MIKICITY | 2R | |
| J5 KURUME | 1R |
2021
Nation
JPN
Generation
Born in 2006 (18-19 years old)
Year-end Junior World Ranking
- Year-end 2023 813th
- Year-end 2022 1074th
- Year-end 2021 1449th
Match Details
2024 J500 OSAKA
| L | 1R | Vojtech Vales | 5-7 1-6 |
2023 J30 MATSUYAMA
| L | 1R | Yuki Okahashi | 2-6 6-7 |
2023 J30 GIFU
| W | 1R | Takuma Minamoto | 6-3 6-1 |
| W | 2R | Zhengjie Wu | 6-1 6-3 |
| L | QF | Min Ho Ko | 1-6 2-6 |
2023 J30 CHIGASAKI
| W | 1R | Sota Uranaka | 6-3 7-5 |
| W | 2R | Zhengjie Wu | 6-3 6-2 |
| L | QF | Gaku Nayuki | 6-3 6-7 5-7 |
2023 J60 YAMANASHI
| W | 1R | Kou Fujikawa | 6-3 6-2 |
| W | 2R | Rei Sato | 6-3 4-6 6-4 |
| L | QF | Eito Komada | 6-3 5-7 4-10 |
2023 J500 OSAKA
| W | 1R | Matteo Sciahbasi | 0-6 6-1 7-5 |
| L | 2R | Hayden Jones | 2-6 3-6 |
2023 J100 KAWAGUCHI
| L | 1R | Kriish Tyagi | 4-6 2-6 |
2023 J100 ANDONG
| L | 1R | Se Hyuk Cho | 6-3 1-6 3-6 |
2023 J100 KUALALUMPUR
| L | 1R | Ye Chen | 6-4 1-6 1-6 |
2023 J100 SARAWAK
| W | 1R | Emir Effendy | 6-0 6-0 |
| L | 2R | Daniel Jovanovski | 1-6 3-6 |
2023 J60 SUNCHANG
| W | 1R | Tae Woo Kim | 6-2 6-3 |
| L | 2R | Hyeon Seok Seo | 4-6 7-5 1-6 |
2023 J60 ANDONG
| W | 1R | Hae Chang Lee | 7-5 6-1 |
| L | 2R | Min Ho Ko | 2-6 2-6 |
2023 J30 KURUME
| W | 1R | Haruki Okude | 6-4 3-6 6-4 |
| L | 2R | Hiromasa Koyama | 4-6 6-2 1-6 |
2022 J5 MATSUYAMA
| L | 1R | Shu Hirata | 4-6 4-6 |
2022 J5 GIFU
| W | 1R | Yuki Kani | 4-6 6-3 6-2 |
| L | 2R | Hiromasa Koyama | 3-6 4-6 |
2022 J5 CHIGASAKI
| W | 1R | Cody Atkinson | 6-1 6-4 |
| W | 2R | Yuto Miyagawa | 6-4 6-2 |
| W | QF | Ryusuke Inuzuka | 6-2 6-3 |
| L | SF | Yuya Ando | 4-6 6-1 0-6 |
2022 AI SUGIYAMA CUP
| W | 1R | Cody Atkinson | 6-1 6-4 |
| W | 2R | Yuto Miyagawa | 6-4 6-2 |
| W | QF | Ryusuke Inuzuka | 6-2 6-3 |
| L | SF | Yuya Ando | 4-6 6-1 0-6 |
2022 J5 YAMANASHI
| W | 1R | Koshiro Nakamae | 6-2 6-3 |
| L | 2R | Kensuke Kobayashi | 1-6 6-2 0-6 |
2022 J2 NAGOYA
| W | 1R | Ren Matsumura | 6-3 6-2 |
| L | 2R | Jonathan Irwanto | 1-6 1-6 |
2022 J3 KAWAGUCHI
| L | 1R | Shu Muto | 6-1 1-6 4-10 |
2022 J4 MIKICITY-2
| L | 1R | Ryosuke Inagawa | 6-3 4-6 2-6 |
2022 J4 MIKICITY
| W | 1R | Aoi Ooka | 6-2 2-6 6-3 |
| L | 2R | Satoru Nakajima | 5-7 2-6 |
2022 J5 KURUME
| L | 1R | Shion Itsusaki | 2-6 1-6 |
2021 AI SUGIYAMA CUP
| L | 1R | Haruta Sumi | 1-6 6-3 0-6 |
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