Stadium: Court 3 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Santo Domingo | 2021/12/09 13:30 | Colin Markes v Alexis Musialek | 1-6,4-6 |
| ITF M15 Santo Domingo | 2021/12/08 13:30 | Johannes Ingildsen v Colin Markes | 7-6,6-7,6-7 |
| ITF M15 Santo Domingo | 2021/12/02 16:15 | Peter Bertran v Colin Markes | 6-3,6-7,6-4 |
| ITF M15 Santo Domingo | 2021/12/01 16:50 | Yasha Zemel v Colin Markes | 3-6,4-6 |
| ITF M25 Santo Domingo | 2021/11/30 13:00 | Colin Markes v Jesus M Rosario | 6-1,6-2 |
| ITF M25 Santo Domingo | 2021/11/29 15:00 | Colin Markes v Rafael Abdul Salam | 6-2,6-4 |
| ITF M25 Austin | 2021/11/20 18:45 | Eduardo Nava v Colin Markes | 7-6,6-1 |
| ITF M25 Austin | 2021/11/19 16:55 | Colin Markes v Kareem Allaf | 6-2,4-6,7-6 |
| ITF M15 Heraklion | 2021/06/07 09:00 | Sahar Simon v Pol Wattanakul | 7-5,6-1 |
| ITF M15 Heraklion | 2021/05/30 06:30 | Artur Soghoyan v Pol Wattanakul | 2-6,6-3,10-4 |
| ITF M15 Heraklion | 2021/05/24 08:00 | Jeremy Schifris v Pol Wattanakul | 6-1,6-7,10-4 |
| ITF M15 Heraklion | 2021/05/23 08:00 | Michel-Alexandre Fortin v Pol Wattanakul | 7-5,0-6,7-10 |
| ITF M15 Heraklion | 2021/05/17 09:30 | Pol Wattanakul v Jeremy Schifris | 2-6,0-6 |
| ITF M15 Doha | 2020/03/12 11:55 | Pol Wattanakul v Alexandar Lazarov | 4-6,3-6 |
| ITF M15 Doha | 2020/03/11 15:10 | Pol Wattanakul v Gabriel Donev | 6-1,6-2 |
| ITF M15 Doha | 2020/03/10 11:55 | Pol Wattanakul v Drona Walia | 6-3,6-3 |