Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M15 - Castelo Branco | 2021/07/28 08:30 | Marek Gengel v Ray Ho | 6-2,2-6,6-3 |
| ITF M25 - Idanha-A-Nova | 2021/07/22 11:45 | Clement Chidekh v Marek Gengel | 6-4,7-6 |
| ITF M25 - Idanha-A-Nova | 2021/07/21 08:00 | Joao Lucas Reis da Silva v Marek Gengel | 5-7,0-6 |
| Challenger - Aix en Provence | 2021/06/13 10:00 | Marek Gengel v Eduard Esteve Lobato | 0-6,1-6 |
| ITF M15 - Gaiba | 2021/06/08 13:50 | Marek Gengel v Mats Rosenkranz | 6-4,5-7,1-6 |
| ITF M25 - Most | 2021/05/26 09:35 | Antonin Bolardt v Marek Gengel | 7-6,6-0 |
| ITF M15 - Tbilisi | 2021/05/21 06:00 | Alexander Shevchenko v Marek Gengel | 6-7,6-4,6-4 |
| ITF M15 - Tbilisi | 2021/05/20 09:40 | Aidan Mayo v Marek Gengel | 3-6,2-6 |
| ITF M15 - Castelo Branco | 2021/07/28 08:30 | Daniel Batista v Pietro Mugelli | 6-2,6-3 |
| ITF M25 - Idanha-A-Nova | 2021/07/19 11:55 | Daniel Batista v Alejandro Moro Canas | 6-7,3-6 |
| ITF M25 - Idanha-A-Nova | 2021/07/18 14:30 | Daniel Batista v Ivan Zaytsev | 6-3,6-4 |
| ITF M25 - Idanha-A-Nova | 2021/07/11 08:00 | Alejandro Moro Canas v Daniel Batista | 6-2,6-2 |
| ITF M15 - Almada | 2021/07/08 12:30 | Joao Lucas Reis da Silva v Daniel Batista | 6-2,6-3 |
| ITF M15 - Almada | 2021/07/05 10:00 | Miguel Damas v Daniel Batista | 4-6,4-6 |
| ITF M15 - Almada | 2021/07/04 13:00 | Diogo Morais v Daniel Batista | 3-6,4-6 |
| FPT Portugal Series | 2020/07/17 15:00 | Frederico Ferreira Silva v Daniel Batista | 6-2,6-2 |