Stadium: Court 4 Round: 26 Ground: Clay
| ITF - M15 Karuizawa | 2019/05/28 01:00 | Takeuchi, Kento (1987) v Sam Ryan Ziegann | 6-3,6-3 |
| ITF - M25 Luan | 2019/05/16 03:30 | Takeuchi, Kento (1987) v Niki, Takuto | 4-6,7-6,1-6 |
| ITF - M25 Luan | 2019/05/15 03:45 | Purcell, Rhett v Takeuchi, Kento (1987) | 3-6,3-6 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/08 03:25 | Takeuchi, Kento (1987) v Ye Cong Mo | 2-6,3-6 |
| Namangan, Singles Qualifying M-ITF-UZB-02A | 2019/04/30 14:00 | Roman Safiullin v Takeuchi, Kento (1987) | 2-6,7-5,6-1 |
| Andijan, Singles Qualifying M-ITF-UZB-01A | 2019/04/26 05:00 | Takeuchi, Kento (1987) v Kravchuk, Konstantin | 2-6,1-6 |
| Andijan, Singles Qualifying M-ITF-UZB-01A | 2019/04/24 06:50 | Takeuchi, Kento (1987) v Ivan Liutarevich | 6-3,3-6,6-4 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/12 01:00 | Sho Shimabukuro v Takeuchi, Kento (1987) | 7-5,6-3 |
| ITF - M15 Karuizawa | 2019/05/28 02:30 | Fujii, Sota v Takuya Kumasaka | 4-6,4-6 |
| ITF - M15 Tsukuba | 2019/03/25 01:00 | Takuya Kumasaka v Tomohiro Masabayashi | 3-6,4-6 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/21 02:00 | Takuya Kumasaka v Issei Okamura | 1-6,2-6 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/20 03:25 | Wattanakul, Pol v Takuya Kumasaka | 6-3,1-6,3-6 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/05 07:00 | Takuya Kumasaka v Taisei Ichikawa | 1-6,5-7 |
| ITF Thailand F9 | 2018/11/11 06:00 | Wei-De Lin v Takuya Kumasaka | 6-4,2-6,7-6 |
| ITF Thailand F9 | 2018/11/10 05:00 | Noikor, Noppadol v Takuya Kumasaka | 1-6,1-6 |
| ITF Thailand F8 | 2018/11/04 06:00 | Takuya Kumasaka v Abhinav Sanjeev Shanmugam | 3-6,6-3,4-6 |