Name: Issei Okamura
Country: Japan
Birthdate: 26.05.92, 31 years
ATP ranking: 870
TOP ranking's position: 574 (08.08.16, 55 points)
Points: 15
Prize money: 59670 $
Matches total: 443
Win: 211
%: 47.63 %
Country: Japan
Birthdate: 26.05.92, 31 years
ATP ranking: 870
TOP ranking's position: 574 (08.08.16, 55 points)
Points: 15
Prize money: 59670 $
Matches total: 443
Win: 211
%: 47.63 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 8/9 | 8/9 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2023 | 18/24 | 17/18 | 0/4 | 1/2 | 0/0 | 0/0 | 0/0 |
| 2022 | 12/14 | 11/12 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2021 | 8/10 | 8/8 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2020 | 11/11 | 11/11 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2019 | 18/26 | 13/22 | 1/2 | 0/0 | 0/0 | 4/2 | 0/0 |
| 2018 | 28/27 | 23/21 | 4/4 | 1/1 | 0/1 | 0/0 | 0/0 |
| 2017 | 14/32 | 11/19 | 2/8 | 0/2 | 1/3 | 0/0 | 0/0 |
| 2016 | 33/33 | 19/22 | 13/7 | 0/2 | 1/2 | 0/0 | 0/0 |
| 2015 | 40/27 | 31/21 | 9/5 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2014 | 7/10 | 5/5 | 0/2 | 0/1 | 2/2 | 0/0 | 0/0 |
| 2013 | 12/7 | 12/6 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 |
| 2012 | 2/2 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 211/232 | 170/175 | 31/37 | 2/9 | 4/9 | 4/2 | 0/0 |
| perc. % | 47.63 % | 49.28 % | 45.59 % | 18.18 % | 30.77 % | 66.67 % | 0 % |
Issei Okamura / scheduled / last
| no matches found |
Issei Okamura form / surface: Carpet
Issei Okamura / surface: Carpet
| 13.06.18 | 1st round | Rio Noguchi | Issei Okamura | 6-4, 6-3 |  | match details |  Japan F8 | Carpet |
| 11.11.17 | q 1 | Makoto Ochi | Issei Okamura | 7-610, 7-67 | | match details | Toyota Challenger | Carpet |
| 14.06.17 | 1st round | Shunrou Takeshima | Issei Okamura | 6-3, 7-5 | | match details | Japan F8 | Carpet |
| 17.04.17 | qual. | Ruan Roelofse | Issei Okamura | 6-4, 6-2 | | match details | .png){kind=small} Taipei City | Carpet |
| 16.04.17 | q 2 | Issei Okamura | Shao-Fan Liu | 7-64, 4-6, 6-3 |  | match details | ||
| 12.11.16 | q 2 | Sergey Betov | Issei Okamura | 4-6, 7-5, 6-3 | | match details | Toyota Challenger | Carpet |
| 12.11.16 | q 1 | Issei Okamura | Soichiro Moritani | 7-5, 6-2 | | match details | ||
| 15.06.16 | 1st round | Yusuke Takahashi | Issei Okamura | 6-3, 6-0 | | match details | Japan F8 | Carpet |
| 16.11.14 | qual. | Shintaro Imai | Issei Okamura | 6-3, 6-0 | | match details | Toyota Challenger | Carpet |
| 15.11.14 | q 1 | Issei Okamura | Daiki Kondo | 6-3, 7-5 | | match details | ||
| 15.11.14 | q 2 | Issei Okamura | Keita Koyama | 6-3, 7-5 | | match details | ||
| 16.06.14 | 1st round | Gengo Kikuchi | Issei Okamura | 6-4, 6-2 | | match details | Japan F7 | Carpet |
| 16.11.13 | q 1 | Takuto Niki | Issei Okamura | 6-4, 6-4 | | match details | Toyota Challenger | Carpet |
