| Challenger Shanghai Qual | 09/11 02:00 | 54 | Takeuchi, Kento (1987) v Jie Cui | 6-2,4-6,6-4 | |
| Challenger Shanghai Qual | 09/10 03:25 | 46 | Takeuchi, Kento (1987) v Wu, Hao | 7-6,6-3 | |
| Zhangjiagang, China | 09/05 08:00 | 25 | [337] Sekiguchi, Shuichi v Takeuchi, Kento (1987) [414] | 6-4,6-3 | |
| Jinan, China | 08/10 04:20 | 27 | [140] Soeda, Go v Takeuchi, Kento (1987) [462] | 6-0,6-0 | |
| Jinan, China | 08/09 06:10 | 26 | [462] Takeuchi, Kento (1987) v Zhyrmont, Dzmitry [333] | 7-6,6-7,7-5 | |
| Jinan, China | 08/07 03:35 | 25 | Hovhannisyan, Mousheg v Takeuchi, Kento (1987) | 6-7,2-6 | |
| Challenger Jinan Qual | 08/05 02:30 | 45 | [472] Takeuchi, Kento (1987) v Toshihide Matsui [163] | 3-6,6-3,6-4 | |
| Chengdu, China | 08/01 03:20 | 25 | [472] Takeuchi, Kento (1987) v Hiroki Moriya [212] | 4-6,2-6 | |
| Challenger Chengdu Qual | 07/30 03:00 | 54 | [419] Mukund, S. v Takeuchi, Kento (1987) [472] | 2-6,4-6 | |
| Challenger Chengdu Qual | 07/29 02:00 | 46 | [115] Hsieh, Cheng-Peng v Takeuchi, Kento (1987) [472] | 1-6,1-6 | |
| ITF China F14 | 07/24 08:15 | 25 | Issei Okamura v Takeuchi, Kento (1987) | 6-2,6-2 | |
| Challenger Astana Qual | 07/15 05:10 | 46 | Duldaev, Daniyar v Takeuchi, Kento (1987) | 6-1,6-3 | |
| ITF China F10 | 06/30 02:00 | 27 | Takeuchi, Kento (1987) v He, Yecong | 3-6,2-6 | |
| ITF China F10 | 06/28 02:00 | 26 | Takeuchi, Kento (1987) v Ruikai Wang | 6-2,6-2 | |
| ITF China F10 | 06/27 02:00 | 25 | Takeuchi, Kento (1987) v Ji, Ang | 6-3,6-1 | |
| ITF Chinese Taipei F2 | 06/20 03:50 | 25 | Lu, Tyler v Takeuchi, Kento (1987) | 6-4,6-1 | |
| ITF Chinese Taipei F1 | 06/16 02:00 | 27 | Takeuchi, Kento (1987) v Tung-Lin Wu | 2-6,4-6 | |
| ITF Chinese Taipei F1 | 06/15 03:35 | 26 | Takeuchi, Kento (1987) v Wei-De Lin | 6-4,6-4 | |
| ITF Chinese Taipei F1 | 06/14 02:00 | 25 | Takeuchi, Kento (1987) v Chiu, Yu Hsiang | 7-5,6-2 | |
| ITF Japan F7 | 06/11 03:40 | 29 | Takeuchi, Kento (1987) v Yosuke Watanuki | 6-4,1-6,4-6 | |
| ITF Japan F7 | 06/10 04:10 | 28 | Takeuchi, Kento (1987) v Inoue, Haru | 7-5,6-2 | |
| ITF Japan F7 | 06/09 01:00 | 27 | [309] Niki, Takuto v Takeuchi, Kento (1987) [492] | 4-6,6-2,4-6 | |
| ITF Japan F7 | 06/08 01:30 | 26 | Watanuki, Keisuke v Takeuchi, Kento (1987) | 3-6,5-7 | |
| ITF Japan F7 | 06/05 03:05 | 25 | Takeshima, Shunrou v Takeuchi, Kento (1987) | 1-6,1-6 | |
| ITF Japan F6 | 06/02 04:00 | 27 | [492] Takeuchi, Kento (1987) v Shintaro Imai [361] | 3-6,4-6 | |
| ITF Japan F6 | 06/01 02:00 | 26 | Takeuchi, Kento (1987) v Tomohiro Masabayashi | 6-4,6-0 | |
| ITF Japan F6 | 05/31 01:00 | - | Takeuchi, Kento (1987) v Tomohiro Masabayashi | 6-4,6-0 | |
| ITF Japan F6 | 05/30 03:55 | 25 | Takeuchi, Kento (1987) v Issei Okamura | 7-6,6-3 | |
| ITF Singapore F1 | 05/26 13:30 | 27 | Wishaya Trongcharoenchaikul v Takeuchi, Kento (1987) | 4-6,6-4,6-3 | |
| ITF Singapore F1 | 05/26 02:00 | 26 | Ito, Yuichi v Takeuchi, Kento (1987) | 2-6,3-6 |