Stadium: Court 8 Round: 25 Ground: Clay
| ITF M25 Portimao | 2021/10/28 09:00 | Sebastian Fanselow v Pablo Llamas Ruiz | 6-4,4-6,6-4 |
| ITF M25 Portimao | 2021/10/27 10:55 | Pablo Llamas Ruiz v Rio Noguchi | 6-3,6-4 |
| Challenger Barcelona | 2021/10/05 14:30 | Oleksii Krutykh v Pablo Llamas Ruiz | 6-2,6-2 |
| Challenger Murcia | 2021/09/28 15:00 | Roberto Carballes Baena v Pablo Llamas Ruiz | 6-3,6-2 |
| ITF M25 Madrid | 2021/09/17 08:00 | Luca Nardi v Pablo Llamas Ruiz | 6-2,5-7,7-5 |
| ITF M25 Madrid | 2021/09/16 11:45 | Pablo Llamas Ruiz v Oscar Jose Gutierrez | 6-3,6-3 |
| ITF M25 Madrid | 2021/09/15 09:40 | Miguel Fernando Pereira v Pablo Llamas Ruiz | 3-6,3-6 |
| Challenger Seville | 2021/09/08 11:00 | Flavio Cobolli v Pablo Llamas Ruiz | 6-3,7-5 |
| ITF M15 Torello | 2021/11/02 12:25 | Pedro Rodenas v Luigi Sorrentino | 1-6,6-2,6-4 |
| ITF M15 Selva Gardena | 2021/10/27 14:05 | Tim Handel v Luigi Sorrentino | 6-2,6-2 |
| ITF M15 Selva Gardena | 2021/10/26 18:45 | Luigi Sorrentino v Yannik Steinegger | 3-6,6-3,7-6 |
| ITF M25 Skopje | 2021/10/01 08:00 | Luigi Sorrentino v Matteo Arnaldi | 3-6,1-6 |
| ITF M25 Skopje | 2021/09/29 07:30 | Luigi Sorrentino v Koray Kirci | 6-2,6-2 |
| ITF M25 Skopje | 2021/09/28 07:25 | Luigi Sorrentino v Shendrit Deari | 5-7,6-2,10-2 |
| ITF M25 Skopje | 2021/09/27 09:00 | Luigi Sorrentino v Berk Bugarikj | 6-3,6-3 |
| ITF M15 Pirot | 2021/09/23 09:30 | Calin Manda v Luigi Sorrentino | 6-3,6-1 |