Stadium: Court 9 Round: 44 Ground: Clay
| ITF M25 Bendigo | 2022/03/05 23:00 | Krittin Koaykul v Patrick Fitzgerald | 2-6,6-7 |
| ITF M25 Bendigo | 2022/03/02 05:05 | Krittin Koaykul v Li Tu | 1-6,1-6 |
| ITF M25 Bendigo | 2022/02/28 04:45 | Nicholas Jovanovski v Krittin Koaykul | 6-7,6-7 |
| ITF M25 Canberra | 2022/02/16 02:10 | Krittin Koaykul v Chanchai Sookton-Eng | 4-6,7-5,5-7 |
| ITF M25 Canberra | 2022/02/14 02:25 | Krittin Koaykul v Zak Talic | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2021/11/17 12:30 | Krittin Koaykul v Neil Oberleitner | 1-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/11/07 08:30 | Krittin Koaykul v Ray Ho | 3-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/11/02 09:15 | Krittin Koaykul v Mason Recci | 3-6,1-6 |