Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| Challenger Kobe | 2019/11/04 03:25 | Saito, Takashi v Sho Shimabukuro | 6-7,3-6 |
| ITF M25 Tay Ninh | 2019/10/01 06:05 | Saito, Takashi v Congsup Congcar | 6-2,2-6,6-4 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/28 02:00 | Saito, Takashi v Sabanin, Yan | 3-6,1-6 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/27 04:10 | Taisei Ichikawa v Saito, Takashi | 4-6,6-2,3-6 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/26 02:00 | Chandrasekar, Anirudh v Saito, Takashi | 7-5,0-6,0-6 |
| Nanchang, Singles M-ITF-CHN-16A | 2019/09/24 02:00 | Tan, Li-Wie v Saito, Takashi | 6-1,1-6,1-6 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/09/06 03:00 | Saito, Takashi v Yusuke Takahashi | 2-6,2-6 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/09/05 05:00 | Seita Watanabe v Saito, Takashi | 4-6,4-6 |
| Toowoomba, Simples M-ITF-AUS-08A | 2019/10/07 01:15 | Taiyo Yamanaka v Horton, Nicholas | 3-6,6-3,6-10 |
| Toowoomba, Simples M-ITF-AUS-08A | 2019/10/06 03:30 | Ma, William v Taiyo Yamanaka | 6-7,3-6 |
| Brisbane, Simples M-ITF-AUS-07A | 2019/10/01 00:00 | Taiyo Yamanaka v Tristan Schoolkate | 6-1,5-7,5-10 |
| Brisbane, Simples M-ITF-AUS-07A | 2019/09/30 00:00 | Ryan, Joshua v Taiyo Yamanaka | 4-6,5-7 |
| Brisbane, Simples M-ITF-AUS-07A | 2019/09/29 02:00 | Taiyo Yamanaka v van Meter, Joseph W | 6-4,7-5 |
| ITF M25 Darwin | 2019/09/24 00:30 | Jesse Flores v Taiyo Yamanaka | 6-3,6-4 |
| ITF M25 Darwin | 2019/09/23 03:00 | Taiyo Yamanaka v Ren Nakamura | 6-2,6-4 |
| ITF M25 Darwin | 2019/09/22 00:30 | Alexey Shtengelov v Taiyo Yamanaka | 2-6,2-6 |