Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF Thailand F3 | 2018/09/05 02:00 | Krittin Koaykul v Kento Takeuchi | 4-6,6-7 |
| 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 | 2018/09/08 02:00 | Wishaya Trongcharoenchaikul v Pruchya Isarow | 6-2,4-6,7-6 |
| ITF Thailand F3 | 2018/09/07 02:00 | Pruchya Isarow v Soichiro Moritani | 6-2,6-2 |
| ITF Thailand F3 | 2018/09/06 02:00 | Pruchya Isarow v Kento Takeuchi | 6-4,6-4 |
| ITF Thailand F3 | 2018/09/05 03:50 | Pruchya Isarow v Congsup Congcar | 6-3,6-7,6-1 |
| ITF Thailand F3 | 2018/09/03 03:00 | Pruchya Isarow v Nitin Kumar Sinha | 6-2,6-2 |
| ITF Thailand F2 | 2018/08/28 02:00 | Naru Shirafuji v Pruchya Isarow | 6-1,7-6 |
| ITF Thailand F1 | 2018/08/23 03:00 | Pruchya Isarow v Dayne Kelly | 5-7,3-6 |
| ITF Thailand F1 | 2018/08/22 02:00 | Pruchya Isarow v Rimpei Kawakami | 4-6,6-3,6-3 |