Error
| Player 1 | Player 2 | Results | Round | Date | Tournament | Surf. | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| - | Goncalo Falcao POR | 4-6 | 6-1 | 10-4 | q2 | 18 Oct 21 |  M25 Quinta Do Lago | Hard | |||
| - | Max Cunat FRA | 1-6 | 7-62 | 10-6 | q1 | 17 Oct 21 | |||||
| Laurent Lokoli FRA | - | 6-4 | 7-5 | 1st | 13 Oct 21 | M25 Loule | Hard | ||||
| - | Tim Heger GER | 6-3 | 6-0 | Q. | 12 Oct 21 | ||||||
| - | Mihailo Kecojevic SVK | 6-0 | 6-2 | q2 | 11 Oct 21 | ||||||
| - | P. Santos BRA | 7-5 | 6-1 | q1 | 10 Oct 21 | ||||||
| Jaime Faria POR (WC) | - | 6-3 | 7-62 | 1st | 05 Oct 21 | M25 Setubal | Hard | ||||
| Peter Heller GER (q) | - | 6-0 | 6-1 | q1 | 19 Sep 21 | Braga Challenger | Clay | ||||
| Evan Hoyt GBR | - | 6-3 | 6-3 | 1st | 15 Sep 21 | M25 Sintra | Hard | ||||
| - | Martim Simoes POR | 6-4 | 3-6 | 10-4 | Q. | 14 Sep 21 | |||||
| - | Ricardo Batista POR | 6-0 | 6-4 | q2 | 13 Sep 21 | ||||||
| Aidan Mayo USA | - | 6-3 | 6-3 | 1st | 06 Sep 21 |  U.S. Open (juniors) | Hard | ||||
| Ozan Colak USA | - | 6-2 | 6-3 | 1st | 05 Jul 21 |  Wimbledon (juniors) | Grass | ||||
| Robin Bertrand FRA (WC) | - | 6-3 | 3-6 | 7-65 | 1st | 06 Jun 21 |  French Open (juniors) | Clay | |||
| N. S.-Izquierdo ESP (q) | - | 6-1 | 6-4 | q1 | 23 May 21 | Oeiras 4 Challenger | Clay | ||||
| Raul Brancaccio ITA (q) | - | 6-1 | 6-1 | q1 | 04 Apr 21 | Oeiras 2 Challenger | Clay | ||||
| Evan Furness FRA (q) | - | 6-3 | 6-1 | q1 | 28 Mar 21 | Oeiras 1 Challenger | Clay | ||||
