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 / year 2018
Issei Okamura / year 2018
| 25.12.18 | 1st round | Issei Okamura | Yuki Mochizuki | 7-64, 7-64 |  | match details |  Hong Kong | Hard |
| 25.12.18 | 2nd round | Riccardo Bonadio | Issei Okamura | 6-3, 7-5 |  | match details | ||
| 23.12.18 | qual. | Issei Okamura | Taisei Ichikawa | 6-2, 7-5 | | match details | ||
| 21.12.18 | q 1 | Issei Okamura | Kyle Lok Yin Tang | 6-1, 6-1 | | match details | ||
| 11.11.18 | q 2 | Jacob Grills | Issei Okamura | 1-6, 6-4, 6-3 | | match details |  Kobe Challenger | I. hard |
| 10.11.18 | q 1 | Issei Okamura | Yuichi Ito | 6-4, 6-72, 6-3 | | match details | ||
| 08.10.18 | 1st round | Moerani Bouzige | Issei Okamura | 7-5, 6-1 | | match details |  Australia F8 | Hard |
| 04.10.18 | 2nd round | Benjamin Mitchell | Issei Okamura | 6-4, 1-6, 6-1 | | match details | Australia F7 | Hard |
| 01.10.18 | 1st round | Issei Okamura | Vincent Stouff | 6-4, 6-4 | | match details | ||
| 24.09.18 | 1st round | Connor Farren | Issei Okamura | 3-6, 7-64, 6-2 | | match details | Australia F6 | Hard |
| 20.09.18 | 2nd round | Issei Okamura | Aaron Addison | 6-2, 6-74, 6-2 | | match details | Australia F5 | Hard |
| 20.09.18 | 1/4 | Brydan Klein | Issei Okamura | 6-3, 6-2 | | match details | ||
| 18.09.18 | 1st round | Issei Okamura | Scott Puodziunas | 7-63, 5-7, 6-4 | | match details | ||
| 11.08.18 | q 1 | Jung-Woong Na | Issei Okamura | 6-3, 1-6, 6-1 | | match details |  Gwangju Challenger | Hard |
| 06.08.18 | qual. | Tak Khunn Wang | Issei Okamura | 6-1, 6-2 | | match details |  Jinan Challenger | Hard |
| 05.08.18 | q 2 | Issei Okamura | Chien-Hsun Lo | 7-65, 6-1 | | match details | ||
| 04.08.18 | q 1 | Issei Okamura | Dzmitry Zhyrmont | 0-3, Dzmitry Zhyrmont - retired | | match details | ||
| 28.07.18 | q 1 | Blake Ellis | Issei Okamura | 4-6, 6-1, 7-5 | | match details | Chengdu Challenger | Hard |
| 25.07.18 | 2nd round | Chun Hsin Tseng | Issei Okamura | 6-3, 6-4 | | match details | .png){kind=small} Chinese Taipei | Hard |
| 24.07.18 | 1st round | Issei Okamura | Liang-Yu Lin | 6-2, 6-2 | | match details | ||
| 19.07.18 | 2nd round | Yu Hsiou Hsu | Issei Okamura | 7-65, 7-5 | | match details | Chinese Taipei | Hard |
| 18.07.18 | 1st round | Issei Okamura | Francesco Vilardo | 7-5, 6-4 | | match details | ||
| 04.07.18 | 1/4 | Shintaro Imai | Issei Okamura | 6-2, 6-1 | | match details | Hong Kong | Hard |
| 03.07.18 | 2nd round | Issei Okamura | Sidharth Rawat | 0-6, 7-5, 6-2 | | match details | ||
| 02.07.18 | 1st round | Issei Okamura | Ching Lam | 6-1, 6-4 | | match details | ||
| 27.06.18 | 2nd round | Issei Okamura | Kazuki Nishiwaki | 6-4, Kazuki Nishiwaki - retired | | match details | Hong Kong | Hard |
| 27.06.18 | 1/4 | Hong Kit Wong | Issei Okamura | 7-5, 6-4 | | match details | ||
| 25.06.18 | 1st round | Issei Okamura | Jeson Patrombon | 6-4, 6-2 | | match details | ||
| 13.06.18 | 1st round | Rio Noguchi | Issei Okamura | 6-4, 6-3 | | match details | Japan F8 | Carpet |
| 04.06.18 | 1st round | Sora Fukuda | Issei Okamura | 6-3, 6-1 | | match details | Japan F7 | Clay |
| 14.05.18 | 1st round | Shi Hong Zeng | Issei Okamura | 6-2, 6-3 | | match details | China F6 | Hard |
| 08.05.18 | 1st round | Lucas Vuradin | Issei Okamura | 7-60, 6-2 | | match details |  Vietnam F2 | Hard |
| 30.04.18 | 1st round | Rio Noguchi | Issei Okamura | 7-5, 7-5 | | match details | Vietnam F1 | Hard |
| 09.04.18 | 1st round | Kazuki Nishiwaki | Issei Okamura | 6-2, 7-5 | | match details | Japan F6 | Hard |
| 08.04.18 | q 2 | Issei Okamura | Hikaru Shiraishi | 6-4, 6-3 | | match details | ||
| 08.04.18 | qual. | Issei Okamura | Yuto Sakai | 6-2, 6-3 | | match details | ||
| 31.03.18 | q 1 | Yuta Kawahashi | Issei Okamura | 6-3, 6-1 | | match details | Japan F5 | Hard |
| 26.03.18 | qual. | Shao-Fan Liu | Issei Okamura | 6-3, 7-5 | | match details | Japan F4 | Hard |
| 25.03.18 | q 2 | Issei Okamura | Takumi Gondo | 6-0, 6-1 | | match details | ||
| 24.03.18 | q 1 | Issei Okamura | Kousuke Ogura | 6-3, 7-5 | | match details | ||
| 19.03.18 | 1st round | Makoto Ochi | Issei Okamura | 7-66, 6-3 | | match details | Japan F3 | Hard |
| 18.03.18 | qual. | Issei Okamura | Masaki Sasai | 6-3, 6-1 | | match details | ||
| 17.03.18 | q 2 | Issei Okamura | Arata Onozawa | 7-64, 6-0 | | match details | ||
| 14.03.18 | 2nd round | Kaito Uesugi | Issei Okamura | 6-4, 7-5 | | match details | Japan F2 | Hard |
| 12.03.18 | qual. | Issei Okamura | Kaito Itsusaki | 6-4, 6-1 | | match details | ||
| 12.03.18 | 1st round | Issei Okamura | Rimpei Kawakami | 6-2, 6-4 | | match details | ||
| 11.03.18 | q 2 | Issei Okamura | Yasunori Hashikawa | 6-2, 6-1 | | match details | ||
| 07.03.18 | 1st round | Shinji Hazawa | Issei Okamura | 3-6, 6-1, 6-3 | | match details | Japan F1 | Hard |
| 25.01.18 | 1/4 | Tsung-Hua Yang | Issei Okamura | 6-3, 6-1 | | match details | China F3 | Clay |
| 24.01.18 | 2nd round | Issei Okamura | Cing-Yang Meng | 7-67, 6-2 | | match details | ||
| 22.01.18 | 1st round | Issei Okamura | Yan Bai | 6-1, 6-0 | | match details | ||
| 18.01.18 | 2nd round | Goran Markovic | Issei Okamura | 2-6, 6-0, 7-5 | | match details | China F2 | Clay |
| 16.01.18 | 1st round | Issei Okamura | Hu Liu | 5-7, 6-4, 6-2 | | match details | ||
| 10.01.18 | 2nd round | Ryota Tanuma | Issei Okamura | 6-1, 6-2 | | match details | China F1 | Clay |
| 09.01.18 | 1st round | Issei Okamura | Lingxi Zhao | 3-6, 6-3, 6-4 | | match details |
