Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF - M25 Quinta Do Lago | 2021/10/17 10:00 | Goncalves, Joao v Vallejo Ferrer, Adria | 4-6,3-6 |
| ITF - M25 Loulé | 2021/10/11 10:30 | Adria Soriano Barrera v Vallejo Ferrer, Adria | 6-0,6-1 |
| ITF - M25 Loulé | 2021/10/10 10:00 | Vallejo Ferrer, Adria v Ferreira, Joao (Por) | 6-1,6-2 |
| ITF M25 Setubal | 2021/10/03 11:00 | Vallejo Ferrer, Adria v Iago D Alvarez | 4-6,4-6 |
| ITF M15 Melilla | 2021/09/21 08:00 | Lorenzo Joaquin Rodriguez v Vallejo Ferrer, Adria | 6-2,6-3 |
| ITF M15 Melilla | 2021/09/20 14:30 | Vallejo Ferrer, Adria v Rudiukov, Ilya | 6-4,6-2 |
| ITF M25 Madrid | 2021/09/12 13:00 | Tiainen, Hermanni v Vallejo Ferrer, Adria | 6-3,6-3 |
| ITF M25 Oviedo | 2021/08/29 12:25 | Garcia, Alejandro v Vallejo Ferrer, Adria | 6-2,6-4 |
| ITF - M25 Quinta Do Lago | 2021/10/17 13:30 | Pedro D L R Bueno v Ma, William | 1-6,3-6 |
| ITF M25 Skopje | 2021/09/29 08:15 | Lorenzo Bocchi v Ma, William | 6-2,6-0 |
| ITF M25 Skopje | 2021/09/28 07:30 | Aristotelis Thanos v Ma, William | 6-4,6-1 |
| ITF M25 Skopje | 2021/09/27 09:45 | Ognjen Pavlovic v Ma, William | 4-6,2-6 |
| ITF M15 Ulcinj | 2021/09/20 08:00 | Petar Jovanovic v Ma, William | 6-0,6-2 |
| ITF M15 Ulcinj | 2021/09/12 08:00 | Ma, William v Procopio, Alessandro | 2-6,2-6 |
| ITF M15 Allershausen | 2021/09/01 14:05 | Mark Whitehouse v Ma, William | 6-4,3-6,6-2 |
| ITF M15 Allershausen | 2021/08/31 08:00 | Ma, William v Link, Joel Vincent | 6-2,6-3 |