Name: Ken Onishi
Country: Japan
Birthdate: 18.02.96, 29 years
ATP ranking: 851
TOP ranking's position: 684 (16.10.17, 33 points)
Points: 19
Prize money: 24.514 $
Matches total: 229
Win: 111
%: 48.47 %
Country: Japan
Birthdate: 18.02.96, 29 years
ATP ranking: 851
TOP ranking's position: 684 (16.10.17, 33 points)
Points: 19
Prize money: 24.514 $
Matches total: 229
Win: 111
%: 48.47 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2021 | 5/5 | 1/2 | 4/3 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2020 | 3/3 | 3/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2019 | 8/15 | 6/11 | 2/3 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2018 | 8/12 | 3/5 | 5/7 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2017 | 19/22 | 6/7 | 13/14 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2016 | 21/25 | 18/20 | 2/1 | 1/2 | 0/2 | 0/0 | 0/0 |
| 2015 | 26/17 | 24/15 | 0/0 | 2/2 | 0/0 | 0/0 | 0/0 |
| 2014 | 14/11 | 8/5 | 6/6 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2013 | 7/7 | 6/5 | 1/1 | 0/0 | 0/1 | 0/0 | 0/0 |
| 2012 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 111/118 | 75/74 | 33/35 | 3/6 | 0/3 | 0/0 | 0/0 |
| perc. % | 48.47 % | 50.34 % | 48.53 % | 33.33 % | 0 % | 0 % | 0 % |
Ken Onishi / Fixtures
| no matches found |
Ken Onishi form / year 2019 / surface: Hard
Ken Onishi / year 2019 / surface: Hard
| 31.12.19 | 1st round | Elliot Benchetrit | Ken Onishi | 7-5, 6-1 |  | match details |  M15 Te | Hard |
| 22.07.19 | q 1 | Han-Chih Lin | Ken Onishi | 6-73, 6-3, 10-6 | | match details | .png){kind=small} M25 Taipei | Hard |
| 15.07.19 | q 1 | Hao-Hsiang Liao | Ken Onishi | 7-67, 7-64 | | match details | M25 Taipei | Hard |
| 17.06.19 | q 1 | Ju-Hae Moon | Ken Onishi | 2-6, 6-3, 10-6 | | match details |  M15 Gimcheon | Hard |
| 13.06.19 | 2nd round | Seongchan Hong | Ken Onishi | 6-1, 6-2 | | match details | M15 Gimcheon | Hard |
| 12.06.19 | 1st round | Ken Onishi | Cing-Yang Meng | 6-4, 6-4 |  | match details | ||
| 11.06.19 | qual. | Ken Onishi | Seunghun Shin | 7-60, 6-3 | | match details | ||
| 10.06.19 | q 1 | Ken Onishi | Suk Ann | 6-2, 7-5 | | match details | ||
| 05.06.19 | 1st round | Oh-Hee Kwon | Ken Onishi | 6-2, 6-2 | | match details | M15 Daegu | Hard |
| 03.06.19 | q 1 | Ken Onishi | Sin Woo Lee | 6-1, 6-76, 10-1 | | match details | ||
| 03.06.19 | qual. | Ken Onishi | Young Seok Lee | 7-66, 2-0, Young Seok Lee - retired | | match details | ||
| 09.04.19 | qual. | Gage Brymer | Ken Onishi | 7-60, 6-2 | | match details |  M25 Matsuyama | Hard |
| 08.04.19 | q 1 | Ken Onishi | Yuhei Kono | 6-2, 6-74, 10-6 | | match details | ||
| 24.03.19 | q 1 | Ryuki Matsuda | Ken Onishi | 6-2, 6-3 | | match details | M15 Tsukuba | Hard |
| 17.03.19 | q 1 | Mick Veldheer | Ken Onishi | 7-5, 6-2 | | match details | M15 Kofu | Hard |
| 11.03.19 | q 1 | George Tsivadze | Ken Onishi | 6-3, 2-6, 10-8 | | match details |  M15 Sharm | Hard |
| 06.03.19 | 1st round | George Tsivadze | Ken Onishi | 6-3, 2-6, 6-3 | | match details | M15 Sharm | Hard |
