Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF Thailand F6 | 2018/10/08 03:30 | Yuttana Charoenphon v Krittin Koaykul | 6-7,2-6 |
| ITF Thailand F2 | 2018/08/27 02:45 | Yuttana Charoenphon v Krittin Koaykul | 6-4,3-6,0-6 |
| ITF M15 Meshref | 2019/11/14 08:00 | Krittin Koaykul v Vitaliy Sachko | 4-6,5-7 |
| ITF M15 Meshref | 2019/11/13 08:10 | Krittin Koaykul v Shahbaaz Khan | 6-4,6-4 |
| ITF M15 Meshref | 2019/11/12 08:00 | Krittin Koaykul v Yacoub Makzoume | 7-5,2-6,10-5 |
| ITF M15 Meshref | 2019/11/08 08:00 | Antoine Bellier v Krittin Koaykul | 7-6,6-2 |
| ITF M15 Meshref | 2019/11/07 09:40 | Krittin Koaykul v Ricardo Rodriguez-Pace | 2-6,6-4,6-4 |
| ITF M15 Meshref | 2019/11/06 13:00 | Krittin Koaykul v Abdulrahman Alawadhi | 6-2,6-0 |
| ITF M15 Meshref | 2019/11/05 08:00 | Worarin Kumthonkittikul v Krittin Koaykul | 7-5,2-6,6-10 |
| ITF M15 Meshref | 2019/10/30 07:00 | Karl Friberg v Krittin Koaykul | 7-5,6-4 |
| ITF M25 Tay Ninh Qual | 2019/10/07 03:30 | Yuttana Charoenphon v Syed Mohd Agil Syed Naguib | 6-1,4-6,9-11 |
| ITF M25 Tay Ninh | 2019/09/30 03:00 | Yuttana Charoenphon v Huynh Thinh | 2-6,5-7 |
| ITF M15 Hua Hin | 2019/09/04 07:35 | Takashi Saito v Yuttana Charoenphon | 5-7,6-4,6-0 |
| ITF M15 Hua Hin | 2019/08/29 03:00 | Yuttana Charoenphon v Hiroyasu Ehara | 1-6,0-6 |
| ITF M15 Hua Hin | 2019/08/21 04:25 | Yuttana Charoenphon v Young-Hoon Jeong | 1-6,7-6,1-6 |
| ITF M15 Jakarta | 2019/08/05 03:00 | Alexander Crnokrak v Yuttana Charoenphon | 6-1,6-0 |
| ITF M25 Nonthaburi | 2019/07/30 02:30 | Yuttana Charoenphon v Siddharth Vishwakarma | 1-6,4-6 |
| ITF M25 Nonthaburi | 2019/07/29 02:30 | Billy Harris v Yuttana Charoenphon | 6-7,7-5,5-10 |