Ground: Clay
| ITF Japan F8 | 2014/06/25 01:00 | 니키, 타쿠토 v Sasai, Masaki | 3-6,1-6 |
| ITF Japan F8 | 2014/06/22 03:00 | Sasai, Masaki v Habusawa, Tetsuro | 6-1,6-0 |
| ITF Japan F7 | 2014/06/19 01:00 | Mclachlan, Ben v Sasai, Masaki | 6-3,6-4 |
| ITF Japan F7 | 2014/06/17 01:00 | Sasai, Masaki v 모리타니, 소이치로 | 6-1,1-6,6-4 |
| ITF Japan F6 Qual | 2014/06/08 07:30 | Sasai, Masaki v Ushida, Atsushi | 1-6,3-6 |
| ITF Japan F5 | 2014/06/03 01:00 | 니키, 타쿠토 v Sasai, Masaki | 6-4,6-4 |
| ITF Guam F1 | 2014/05/27 00:00 | Sasai, Masaki v 타케시마, 순로우 | 4-6,2-6 |
| ITF Korea F1 Qual | 2014/04/30 01:00 | 김, 정의 v Sasai, Masaki | 6-2,6-4 |
| ITF Japan F8 | 2014/06/24 01:00 | Watanuki, Keisuke v Shiga, Masato | 6-4,6-2 |
| ITF Japan F7 Qual | 2014/06/14 00:30 | Watanuki, Keisuke v 오노, 마사요시 | 6-2,6-3 |
| ITF Japan F6 | 2014/06/11 07:50 | 카타야마, 쇼 v Watanuki, Keisuke | 6-3,7-5 |
| ITF Japan F6 Qual | 2014/06/09 03:00 | Watanuki, Keisuke v Sano, Koichi | 6-4,6-0 |
| ITF Japan F6 Qual | 2014/06/08 09:00 | 바르클라이, 다비드 v Watanuki, Keisuke | 4-6,2-6 |
| ITF Japan F3 | 2014/03/26 02:50 | 니키, 타쿠토 v Watanuki, Keisuke | 6-3,6-1 |
| ITF Japan F2 | 2014/03/17 03:10 | Watanuki, Keisuke v Shiga, Masato | 6-7,4-6 |