Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF China F6 | 2018/05/16 02:00 | Jumpei Yamasaki v Kento Takeuchi | 4-6,6-4,6-7 |
| Challenger Yokohama Qual | 2018/02/24 01:00 | Kento Takeuchi v Jumpei Yamasaki | 3-6,3-6 |
| Challenger Gatineau Qual | 2018/07/15 02:00 | Lucas Catarina v Kento Takeuchi | 6-3,6-3 |
| ITF Guam F1 | 2018/06/20 04:05 | Niklas Johansson v Kento Takeuchi | 6-3,6-4 |
| ITF Guam F1 | 2018/06/18 01:35 | Teppei Uesugi v Kento Takeuchi | 4-6,3-6 |
| ITF China F8 | 2018/06/05 03:30 | Alafia Ayeni v Kento Takeuchi | 6-1,7-5 |
| ITF China F7 | 2018/06/01 05:10 | Yecong He v Kento Takeuchi | 6-2,6-2 |
| ITF China F7 | 2018/05/31 04:15 | Jianhui Li v Kento Takeuchi | 4-6,4-6 |
| ITF China F7 | 2018/05/29 02:00 | Chukang Wang v Kento Takeuchi | 3-6,2-6 |
| ITF China F6 | 2018/05/19 03:00 | Kento Takeuchi v Fajing Sun | 1-6,3-6 |
| Challenger Gatineau Qual | 2018/07/14 21:55 | Jacob Grills v Jumpei Yamasaki | 6-3,6-1 |
| Challenger Winnipeg Qual | 2018/07/08 18:05 | Sem Verbeek v Jumpei Yamasaki | 7-6,7-6 |
| ITF Hong Kong F1 | 2018/06/29 02:00 | Jumpei Yamasaki v Yuki Mochizuki | 4-6,4-6 |
| ITF Hong Kong F1 | 2018/06/28 02:00 | Chukang Wang v Jumpei Yamasaki | 0-6,2-6 |
| ITF Hong Kong F1 | 2018/06/27 03:45 | Anthony Jackie Tang v Jumpei Yamasaki | 7-5,3-6,1-6 |
| ITF Hong Kong F1 | 2018/06/26 03:15 | Wei-De Lin v Jumpei Yamasaki | 3-6,3-6 |
| ITF Korea F3 | 2018/06/22 04:55 | Soonwoo Kwon v Jumpei Yamasaki | 6-3,6-1 |
| ITF Korea F3 | 2018/06/21 02:50 | Young Seok Kim v Jumpei Yamasaki | 6-7,4-6 |