Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2021/10/04 09:00 | Krittin Koaykul v Hacohen, Ofer | 6-3,6-3 |
| ITF M15 Cairo | 2021/09/27 12:00 | Krittin Koaykul v Marzialetti, Genaro | 6-4,3-6,3-10 |
| ITF M15 Cairo | 2021/09/21 09:30 | Sanchez Martinez, Benito v Krittin Koaykul | 6-0,7-6 |
| ITF M15 Cairo | 2021/09/20 09:00 | Abou El Ezz, Magd v Krittin Koaykul | 5-7,1-6 |
| ITF M15 Cairo | 2021/09/19 16:30 | Peranamallur, Chandrasekhar Vignesh 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 |
| ITF M15 Cairo | 2021/09/06 10:00 | Krittin Koaykul v Mateo Del Pino | 4-6,1-6 |
| ITF - M15 Sharm El Sheikh | 2021/10/04 09:00 | Jakub Kroslak v Bronka, Adam | 6-4,6-2 |
| ITF - M15 Sharm El Sheikh | 2021/10/03 09:00 | Zaghloul, Aly v Jakub Kroslak | 2-6,2-6 |
| ITF M25 Ricany | 2021/08/29 10:30 | Adam Kozler v Jakub Kroslak | 7-6,6-1 |
| ITF M15 Bratislava | 2021/08/24 08:00 | Jiri Barnat v Jakub Kroslak | 6-3,7-5 |
| ITF M15 Bratislava | 2021/08/23 09:00 | Jakub Kroslak v Iiro Vasa | 6-1,6-3 |
| Prostejov, Singles M-ITF-CZE-04A | 2021/08/16 08:00 | Dominique Graf v Jakub Kroslak | 6-2,6-4 |
| Prostejov, Singles M-ITF-CZE-04A | 2021/08/15 08:00 | Aregger, Lars v Jakub Kroslak | 2-6,2-6 |
| ITF M25 Kottingbrunn | 2021/07/19 10:35 | Jakub Kroslak v Makk, Peter | 4-6,6-3,6-10 |