Stadium: Court 5 Round: 26
| ITF Thailand F3 | 2018/09/02 02:00 | Sam Ryan Ziegann v Krittin Koaykul | 6-7,1-6 |
| ITF Thailand F3 | 2018/09/01 05:00 | Krittin Koaykul v Thammarat Kamchai | 6-2,6-1 |
| ITF Thailand F2 | 2018/08/28 02:00 | Krittin Koaykul v Thomas Fancutt | 1-6,6-7 |
| ITF Thailand F2 | 2018/08/27 02:45 | Yuttana Charoenphon v Krittin Koaykul | 6-4,3-6,0-6 |
| ITF Thailand F2 | 2018/08/26 03:30 | Krittin Koaykul v Chayanon Kaewsuto | 6-3,4-6,7-6 |
| ITF Thailand F2 | 2018/08/25 04:00 | Krittin Koaykul v Tanakorn Srirat | 6-1,6-2 |
| ITF Thailand F1 | 2018/08/18 03:30 | Nawakarn Khunjan v Krittin Koaykul | 7-5,7-6 |
| ITF Thailand F3 | 2018/09/04 02:00 | Connor Farren v Kento Takeuchi | 3-6,6-7 |
| ITF USA F22 | 2018/08/08 16:20 | Kento Takeuchi v Guy Orly Iradukunda | 2-6,7-5,6-3 |
| Challenger Lexington Qual | 2018/07/28 18:55 | Ruan Roelofse v Kento Takeuchi | 6-4,6-4 |
| 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 |