Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| Challenger Yokkaichi | 2019/08/05 03:10 | Sora Fukuda v Kento Takeuchi | 4-6,3-6 |
| Challenger Chengdu | 2019/07/30 08:10 | Kento Takeuchi v Hyeon Chung | 3-6,2-6 |
| Challenger Chengdu | 2019/07/29 04:35 | Hanyi Liu v Kento Takeuchi | 4-6,7-6,3-6 |
| ITF M25 Taipei | 2019/07/25 02:00 | Makoto Ochi v Kento Takeuchi | 6-4,7-6 |
| ITF M25 Taipei | 2019/07/23 06:35 | Li-Wei Tan v Kento Takeuchi | 6-1,1-6,6-7 |
| ITF M25 Qujing | 2019/07/12 03:50 | Kento Takeuchi v Yan Bai | 1-6,1-6 |
| ITF M25 Qujing | 2019/07/11 03:40 | Jie Cui v Kento Takeuchi | 4-6,1-6 |
| ITF M15 Akishima | 2019/06/12 01:00 | Sho Katayama v Kento Takeuchi | 6-0,6-4 |
| Challenger Chengdu | 2019/08/03 05:30 | Tatsuma Ito v Hyeon Chung | 2-6,6-7 |
| Challenger Chengdu | 2019/08/02 09:15 | Shuichi Sekiguchi v Tatsuma Ito | 2-6,1-6 |
| Challenger Chengdu | 2019/08/01 06:15 | Matthew Romios v Tatsuma Ito | 2-6,1-6 |
| Challenger Chengdu | 2019/07/30 05:10 | Makoto Ochi v Tatsuma Ito | 4-6,3-6 |
| ATP Newport | 2019/07/14 15:00 | Tatsuma Ito v John-Patrick Smith | 2-6,6-3,3-6 |
| Wimbledon | 2019/06/24 15:05 | Steven Diez v Tatsuma Ito | 6-4,6-1 |
| Challenger Ilkley | 2019/06/18 10:00 | Tatsuma Ito v Ruben Bemelmans | 7-6,3-6,4-6 |
| Challenger Nottingham | 2019/06/14 11:00 | Tatsuma Ito v Lukas Rosol | 4-6,7-6,3-6 |