Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Recife | 2021/09/22 13:00 | Joao Hinsching v Henrique S Gomes | 3-6,6-3,6-4 |
| ITF M15 Recife | 2021/09/21 13:00 | Henrique S Gomes v Luca Moro Almeida | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2021/10/05 09:35 | Krittin Koaykul v Jakub Kroslak | 1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/10/04 09:00 | Krittin Koaykul v Ofer Hacohen | 6-3,6-3 |
| ITF M15 Cairo | 2021/09/27 12:00 | Krittin Koaykul v Genaro Marzialetti | 6-4,3-6,3-10 |
| ITF M15 Cairo | 2021/09/21 09:30 | Benito Sanchez Martinez v Krittin Koaykul | 6-0,7-6 |
| ITF M15 Cairo | 2021/09/20 09:00 | Magd Abou El Ezz v Krittin Koaykul | 5-7,1-6 |
| ITF M15 Cairo | 2021/09/19 16:30 | Vignesh Peranamallur v Krittin Koaykul | 2-6,1-6 |
| ITF M15 Cairo | 2021/09/13 08:00 | Krittin Koaykul v Samir Hamza Reguig | 1-6,0-6 |
| ITF M15 Cairo | 2021/09/12 11:00 | Krittin Koaykul v Karan Singh | 1-6,6-3,10-6 |