Nombre: Issei Okamura
País: Japan
Fecha de nacimiento: 26.05.92, 34 años
ATP ranking: 870
TOP posición de la clasificación: 574 (08.08.16, 55 puntos)
Puntos: 15
Dinero del premio: 70660 $
Partidos totales: 516
ganar: 246
%: 47.67 %
País: Japan
Fecha de nacimiento: 26.05.92, 34 años
ATP ranking: 870
TOP posición de la clasificación: 574 (08.08.16, 55 puntos)
Puntos: 15
Dinero del premio: 70660 $
Partidos totales: 516
ganar: 246
%: 47.67 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2025 | 19/20 | 19/16 | 0/2 | 0/2 | 0/0 | 0/0 | 0/0 |
| 2024 | 24/27 | 22/22 | 2/3 | 0/2 | 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 | 246/270 | 203/204 | 33/42 | 2/13 | 4/9 | 4/2 | 0/0 |
| porc. % | 47.67 % | 49.88 % | 44 % | 13.33 % | 30.77 % | 66.67 % | 0 % |
Issei Okamura / programado / pasado
| No se encontraron partidos |
Issei Okamura form / año 2016 / superficie: Difícil
Issei Okamura / año 2016 / superficie: Difícil
| 20.12.16 | 1er ronda | Wishaya Trongcharoenchaikul | Issei Okamura | 6-2, 7-67 |  | match details |  Thailand F5 | Difícil |
| 13.12.16 | 1er ronda | Kittiphong Wachiramanowong | Issei Okamura | 6-0, 6-0 | | match details | Thailand F4 | Difícil |
| 07.12.16 | 1er ronda | David Agung Susanto | Issei Okamura | 6-1, 6-4 | | match details |  Indonesia F5 | Difícil |
| 30.11.16 | 1er ronda | Shintaro Imai | Issei Okamura | 5-5, Issei Okamura - retirado | | match details | Indonesia F4 | Difícil |
| 11.10.16 | 1er ronda | Tung-Lin Wu | Issei Okamura | 6-2, 3-6, 6-2 | | match details | .png){kind=small} Chinese Taipei | Difícil |
| 22.09.16 | 2da ronda | Shinta Fujii | Issei Okamura | 6-3, 7-63 | | match details |  Vietnam F5 | Difícil |
| 20.09.16 | 1er ronda | Issei Okamura | Ren Nakamura | 6-2, 6-3 |  | match details | ||
| 16.09.16 | 1/4 | Yuichi Ito | Issei Okamura | 6-2, 4-6, 6-4 | | match details | Vietnam F4 | Difícil |
| 15.09.16 | 2da ronda | Issei Okamura | Seungri Choi | 6-4, 6-3 | | match details | ||
| 13.09.16 | 1er ronda | Issei Okamura | Chan-Yeong Oh | 7-66, 6-3 | | match details | ||
| 07.09.16 | 2da ronda | Jumpei Yamasaki | Issei Okamura | 4-6, 6-2, 6-4 | | match details | Thailand F3 | Difícil |
| 04.09.16 | 1er ronda | Issei Okamura | Natthasith Kunsuwan | 6-2, 6-4 | | match details | ||
| 28.08.16 | 1er ronda | Renta Tokuda | Issei Okamura | 6-4, 6-1 | | match details | Thailand F2 | Difícil |
| 24.08.16 | 2da ronda | Issei Okamura | Phassawit Burapharitta | 6-3, 6-4 | | match details | Thailand F1 | Difícil |
| 24.08.16 | 1/4 | Ti Chen | Issei Okamura | 6-1, 6-0 | | match details | ||
| 21.08.16 | 1er ronda | Issei Okamura | N. Vijay Sundar Prashanth | 6-2, 4-6, 6-4 | | match details | ||
| 05.06.16 | 1er ronda | Kento Takeuchi | Issei Okamura | 6-2, 6-3 | | match details |  Japan F7 | Difícil |
| 25.05.16 | 1er ronda | Bernabe Zapata Miralles | Issei Okamura | 6-3, 6-2 | | match details |  Spain F15 | Difícil |
| 06.05.16 | 1/4 | Hugo Nys | Issei Okamura | 6-0, 6-3 | | match details |  Turkey F18 | Difícil |
| 05.05.16 | 2da ronda | Issei Okamura | Mikelis Libietis | 6-3, 6-2 | | match details | ||
| 03.05.16 | 1er ronda | Issei Okamura | Marcelo Tebet Filho | 7-5, 6-4 | | match details | ||
| 28.04.16 | 2da ronda | Marc Sieber | Issei Okamura | 5-7, 6-2, 6-0 | | match details | Turkey F17 | Difícil |
| 26.04.16 | 1er ronda | Issei Okamura | Marek Jaloviec | 2-6, 7-64, 6-2 | | match details | ||
| 14.04.16 | 2da ronda | Shuichi Sekiguchi | Issei Okamura | 6-2, 6-2 | | match details |  China F5 | Difícil |
| 12.04.16 | 1er ronda | Issei Okamura | Aoran Wang | 6-3, 6-1 | | match details | ||
| 05.04.16 | 1er ronda | Yuya Ito | Issei Okamura | 6-0, 6-3 | | match details | Japan F5 | Difícil |
| 31.03.16 | 2da ronda | Finn Tearney | Issei Okamura | 6-3, 6-2 | | match details | Japan F4 | Difícil |
| 30.03.16 | 1er ronda | Issei Okamura | Kittiphong Wachiramanowong | 6-4, 6-2 | | match details | ||
| 17.03.16 | 2da ronda | Sidharth Rawat | Issei Okamura | 6-4, 1-6, 7-64 | | match details | Japan F2 | Difícil |
| 15.03.16 | 1er ronda | Issei Okamura | Young Seok Kim | 6-76, 6-3, 6-4 | | match details | ||
| 12.03.16 | 1/2 | Liang-Chi Huang | Issei Okamura | 6-3, 6-4 | | match details | Japan F1 | Difícil |
| 11.03.16 | 1/4 | Issei Okamura | Karunuday Singh | 6-3, 6-2 | | match details | ||
| 10.03.16 | 2da ronda | Issei Okamura | Sidharth Rawat | 6-2, 6-4 | | match details | ||
| 09.03.16 | 1er ronda | Issei Okamura | Kento Takeuchi | 7-63, 7-61 | | match details | ||
| 12.02.16 | 1/4 | Seongchan Hong | Issei Okamura | 5-7, 6-4, 6-3 | | match details | Turkey F6 | Difícil |
| 11.02.16 | 2da ronda | Issei Okamura | Patrik Nema | 6-1, 7-5 | | match details | ||
| 09.02.16 | 1er ronda | Issei Okamura | Maxime Pauwels | 3-6, 6-3, 6-3 | | match details | ||
| 04.02.16 | 2da ronda | Lenny Hampel | Issei Okamura | 1-6, 6-0, 7-67 | | match details | Turkey F5 | Difícil |
| 02.02.16 | 1er ronda | Issei Okamura | Mert Zincirli | 6-4, 6-2 | | match details | ||
| 25.01.16 | calif. | Ryota Kishi | Issei Okamura | 6-2, 2-6, 6-1 | | match details | Turkey F4 | Difícil |
| 25.01.16 | c 2 | Issei Okamura | Peter Balla | 6-2, 6-2 | | match details |