Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| Thailande F6, Qualifications Simples | 2018/10/08 03:30 | Yuttana Charoenphon v Krittin Koaykul | 6-7,2-6 |
| ITF Thailand F5 | 2018/10/02 05:05 | Takeuchi, Kento (1987) v Krittin Koaykul | 6-2,6-3 |
| ITF Thailand F4 | 2018/09/25 04:10 | Krittin Koaykul v Isarow, Pruchya | 1-6,2-6 |
| ITF Thailand F3 | 2018/09/05 02:00 | Krittin Koaykul v Takeuchi, Kento (1987) | 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 Kamchai, Thammarat | 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 |
| Thailande F6, Qualifications Simples | 2018/10/09 02:30 | Spec, Matic v Moritani, Soichiro | 6-1,5-7,6-3 |
| Thailande F6, Qualifications Simples | 2018/10/08 02:30 | Spec, Matic v Kaewsuto, Chayanon | 6-3,6-2 |
| Thailande F6, Qualifications Simples | 2018/10/07 02:30 | Spec, Matic v Liu, Hu | 6-3,6-2 |
| ITF Thailand F5 | 2018/09/30 02:30 | Spec, Matic v Mulada, Tonkla | 4-6,6-2,5-7 |
| ITF Thailand F5 | 2018/09/29 04:30 | Spec, Matic v Borisutpong, Pattanapong | 6-1,6-0 |
| ITF Thailand F4 | 2018/09/24 04:00 | Spec, Matic v Shintaro Imai | 6-7,3-6 |
| ITF USA F22 Qual | 2018/08/06 13:30 | Spec, Matic v Perez, Alfredo | 3-6,2-6 |
| ITF USA F22 Qual | 2018/08/04 14:30 | Spec, Matic v Fifea, Catalin | 4-6,7-5,6-4 |