Stadium: Dusit Center Round: 26 Ground: Hardcourt outdoor
| ITF M25 Harmon | 2022/05/31 00:00 | Tatsuma Ito v Ian Turner | 6-0,6-3 |
| Challenger Puerto Vallarta | 2021/11/27 02:00 | Alejandro Tabilo v Tatsuma Ito | 6-2,6-2 |
| Challenger Puerto Vallarta | 2021/11/25 00:30 | Alex Hernandez v Tatsuma Ito | 2-6,3-6 |
| Challenger Puerto Vallarta | 2021/11/22 22:30 | Gijs Brouwer v Tatsuma Ito | 2-6,6-7 |
| Challenger Champaign | 2021/11/15 19:00 | Tatsuma Ito v Jeffrey John Wolf | 3-6,6-3,3-6 |
| Challenger Knoxville | 2021/11/09 19:40 | Tatsuma Ito v Mitchell Krueger | 6-7,3-6 |
| Challenger Charlottesville | 2021/11/01 18:35 | Tatsuma Ito v Go Soeda | 6-7,5-7 |
| Challenger Las Vegas | 2021/10/28 18:00 | Tatsuma Ito v Taro Daniel | 2-6,1-6 |
| ITF M25 Harmon | 2022/05/31 04:00 | Victor Putter v Kento Tagashira | 6-7,6-3,7-6 |