Ground: Clay
| ITF Japan F2 | 2014/03/17 03:10 | Watanuki, Keisuke v Shiga, Masato | 6-7,4-6 |
| 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 |
| ITF Japan F7 | 2014/06/18 02:30 | Shiga, Masato v Mclachlan, Ben | 6-4,4-6,0-6 |
| ITF Japan F6 | 2014/06/11 02:05 | Shiga, Masato v Suzuki, Takao | 1-6,2-6 |
| ITF Japan F5 | 2014/06/02 01:00 | Shiga, Masato v Ushida, Atsushi | 6-4,1-6,6-3 |
| ITF Thailand F10 | 2014/05/28 06:25 | Shiga, Masato v Rungkat, Christopher | 5-7,2-6 |
| ITF Thailand F10 | 2014/05/26 05:00 | 콩카르, 콩섭 v Shiga, Masato | 3-6,3-6 |
| ITF Thailand F10 | 2014/05/21 04:00 | 와타나쿨, 폴 v Shiga, Masato | 3-6,6-3,2-6 |
| ITF Korea F1 Qual | 2014/04/30 04:00 | Shiga, Masato v 권, 순우 | 7-6,7-5 |
| ITF Japan F4 | 2014/04/05 02:00 | Shiga, Masato v 니키, 타쿠토 | 3-6,7-6,6-3 |