| ITF Japón F8 |
06/13 01:30 |
25 |
Shunrou Takeshima
v
Issei Okamura
|
6-3,7-5
|
|
| ITF Japón F7 |
06/07 03:35 |
26 |
Issei Okamura
v
Haru Inoue
|
6-7,2-6
|
|
| ITF Japón F7 |
06/06 02:40 |
25 |
Masato Shiga
v
Issei Okamura
|
Retired
|
|
| ITF Japón F6 |
05/30 03:55 |
25 |
Kento Takeuchi
v
Issei Okamura
|
7-6,6-3
|
|
| ITF Singapur F1 |
05/25 02:00 |
25 |
Issei Okamura
v
Kazuki Nishiwaki
|
6-7,1-6
|
|
| ITF China F7 |
05/16 07:00 |
25 |
Issei Okamura
v
Yusuke Takahashi
|
7-5,2-6,4-6
|
|
| ITF China F6 |
05/10 06:05 |
26 |
Dayne Kelly
v
Issei Okamura
|
6-4,6-3
|
|
| ITF China F6 |
05/08 05:30 |
25 |
Ruikai Ruikai Wang
v
Issei Okamura
|
3-6,1-6
|
|
| Challenger de Anning - Clasificación |
04/22 03:35 |
45 |
Issei Okamura
v
Denys Molchanov
|
6-4,3-6,4-6
|
|
| Challenger de Taipéi - Clasificación |
04/17 04:35 |
54 |
Ruan Roelofse
v
Issei Okamura
|
6-4,6-2
|
|
| Challenger de Taipéi - Clasificación |
04/16 05:55 |
46 |
Shao-Fan Liu
v
Issei Okamura
|
6-7,6-4,3-6
|
|
| ITF Japón F5 |
04/04 00:30 |
25 |
Issei Okamura
v
Takao Suzuki
|
6-7,3-6
|
|
| ITF Japón F4 |
03/28 03:00 |
25 |
Kaito Uesugi
v
Issei Okamura
|
6-3,6-3
|
|
| ITF Japón F3 |
03/22 06:00 |
26 |
Shane Vinsant
v
Issei Okamura
|
6-2,6-3
|
|
| ITF Japón F3 |
03/20 02:35 |
25 |
Daisuke Sumizawa
v
Issei Okamura
|
2-6,2-6
|
|
| ITF Japón F2 |
03/13 04:00 |
25 |
Issei Okamura
v
Nam Hoang Ly
|
2-6,2-6
|
|
| ITF Japón F1 |
03/07 02:30 |
25 |
Issei Okamura
v
Yuki Mochizuki
|
2-6,4-6
|
|
| ITF China F3 |
03/01 07:35 |
26 |
Issei Okamura
v
Marco Bortolotti
|
3-6,5-7
|
|
| ITF China F3 |
02/28 02:00 |
25 |
Issei Okamura
v
Chuhan Wang
|
Retired
|
|
| ITF China F2 |
02/23 03:00 |
26 |
Issei Okamura
v
Jose Statham
|
1-6,3-6
|
|
| ITF China F2 |
02/21 02:00 |
25 |
Caio Silva
v
Issei Okamura
|
1-6,0-6
|
|
| ITF China F1 - Masculino |
02/15 02:00 |
25 |
Danilo Petrovic
v
Issei Okamura
|
6-3,6-2
|
|
| Challenger de Launceston - Clasificación |
02/04 01:25 |
46 |
Issei Okamura
v
Zach Itzstein
|
6-3,4-6,6-7
|
|
| Challenger de Burnie Clasificación |
01/28 04:10 |
46 |
Dane Propoggia
v
Issei Okamura
|
6-4,6-2
|
|
| Challenger de Burnie Clasificación |
01/27 23:00 |
45 |
Jeremy Beale
v
Issei Okamura
|
6-1,3-6,2-6
|
|
| ITF Tailandia F5 |
12/20 03:00 |
25 |
Wishaya Trong'kul
v
Issei Okamura
|
6-2,7-6
|
|
| ITF Tailandia F4 |
12/13 03:00 |
25 |
Kittiphong Wach'ong
v
Issei Okamura
|
6-0,6-0
|
|
| ITF Indonesia F5 |
12/07 07:10 |
25 |
David Agung Susanto
v
Issei Okamura
|
6-1,6-4
|
|
| ITF Indonesia F4 |
11/30 03:10 |
25 |
Issei Okamura
v
Shintaro Imai
|
Retired
|
|
| Copa Billie Jean King |
11/12 07:00 |
46 |
Issei Okamura
v
Sergey Betov
|
6-4,5-7,3-6
|
|