Ken Onishi
2014
2013
| J500OSAKA | [4] | 3R |
| US OPEN JUNIOR | 2R | |
| ROLAND GARROS JUNIOR | 2R |
2012
| J500OSAKA | 3R | |
| AUSTRALIAN OPEN JUNIOR | 1R |
2011
| J500OSAKA | 3R |
2010
| J500OSAKA | 1R |
Nation
JPN
Match Details
US OPEN JUNIOR
| W | 1R | Cameron Norrie | 6-4 7-5 |
| L | 2R | Martin Redlicki | 2-6 3-6 |
ROLAND GARROS JUNIOR
| W | 1R | Alexandre Muller | 6-3 7-5 |
| L | 2R | Guillermo Nunez | 3-6 4-6 |
J500OSAKA
| W | 1R | Chi-Shan Jao | 6-4 7-5 |
| W | 2R | Ku Keon Kang | 6-2 7-6 |
| L | 3R | Maxime Janvier | 4-6 1-6 |
AUSTRALIAN OPEN JUNIOR
| L | 1R | Filip Peliwo | 6-3 1-6 4-6 |
J500OSAKA
| W | 1R | Franko Miocic | 6-1 6-2 |
| W | 2R | James Frawley | 6-1 6-1 |
| L | 3R | Kaichi Uchida | 3-6 6-7 |
J500OSAKA
| L | 1R | Sean Berman | 3-6 0-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10505, Number of registered players: 6,666, Number of registered results: 385,227