| ITF Japan F8 | 2014/06/25 01:00 | Takuto Niki v Masaki Sasai | 3-6,1-6 |
| ITF Japan F8 | 2014/06/22 03:00 | Masaki Sasai v Tetsuro Habusawa | 6-1,6-0 |
| ITF Japan F7 | 2014/06/19 01:00 | Ben Mclachlan v Masaki Sasai | 6-3,6-4 |
| ITF Japan F7 | 2014/06/17 01:00 | Masaki Sasai v Soichiro Moritani | 6-1,1-6,6-4 |
| ITF Japan F6 Qual | 2014/06/08 07:30 | Masaki Sasai v Atsushi Ushida | 1-6,3-6 |
| ITF Japan F5 | 2014/06/03 01:00 | Takuto Niki v Masaki Sasai | 6-4,6-4 |
| ITF Guam F1 | 2014/05/27 00:00 | Masaki Sasai v Shunrou Takeshima | 4-6,2-6 |
| ITF Korea F1 Qual | 2014/04/30 01:00 | Cheong-Eui Kim v Masaki Sasai | 6-2,6-4 |
| ITF Japan F8 | 2014/06/24 01:00 | Keisuke Watanuki v Masato Shiga | 6-4,6-2 |
| ITF Japan F7 Qual | 2014/06/14 00:30 | Keisuke Watanuki v Masayoshi Ono | 6-2,6-3 |
| ITF Japan F6 | 2014/06/11 07:50 | Sho Katayama v Keisuke Watanuki | 6-3,7-5 |
| ITF Japan F6 Qual | 2014/06/09 03:00 | Keisuke Watanuki v Koichi Sano | 6-4,6-0 |
| ITF Japan F6 Qual | 2014/06/08 09:00 | David Barclay v Keisuke Watanuki | 4-6,2-6 |
| ITF Japan F3 | 2014/03/26 02:50 | Takuto Niki v Keisuke Watanuki | 6-3,6-1 |
| ITF Japan F2 | 2014/03/17 03:10 | Keisuke Watanuki v Masato Shiga | 6-7,4-6 |