Stadium: Court 1 Round: 26 Ground: Clay
| ITF M15 Murcia | 2019/03/23 10:30 | Carlos Lopez Montagud v Alvaro Lopez San Martin | 2-6,7-5,1-6 |
| ITF M25 Oviedo | 2021/08/31 14:05 | Rio Noguchi v Carlos Lopez Montagud | 2-6,4-6 |
| ITF M25 Santander | 2021/08/24 08:55 | Carlos Lopez Montagud v Juan Bautista Torres | 4-6,2-6 |
| ITF M15 Xativa | 2021/08/07 14:55 | Carlos Lopez Montagud v Francesco Passaro | 6-2,5-7,4-6 |
| ITF M15 Xativa | 2021/08/05 16:30 | Carlos Lopez Montagud v Miguel Damas | 6-4,6-2 |
| ITF M15 Xativa | 2021/08/04 16:30 | Billy Harris v Carlos Lopez Montagud | 6-3,4-6,6-7 |
| ITF M25 Denia | 2021/07/31 14:45 | Calvin Hemery v Carlos Lopez Montagud | 6-3,6-4 |
| ITF M25 Denia | 2021/07/30 08:00 | Daniel Dutra Da Silva v Carlos Lopez Montagud | 3-6,6-7 |
| ITF M25 Denia | 2021/07/29 09:45 | Max Alcala Gurri v Carlos Lopez Montagud | 1-6,0-6 |
| ITF M25 Oviedo | 2021/08/31 14:15 | Alex M Pujolras v Alvaro Lopez San Martin | 4-6,2-6 |
| Challenger Barletta | 2021/08/22 14:45 | Gabriele Piraino v Alvaro Lopez San Martin | 7-6,3-6,7-5 |
| ITF M25 Denia | 2021/07/30 15:00 | Nick Hardt v Alvaro Lopez San Martin | 6-0,6-3 |
| ITF M25 Denia | 2021/07/29 14:00 | Joris De Loore v Alvaro Lopez San Martin | 6-3,6-7,6-7 |
| ITF M25 Denia | 2021/07/28 08:00 | Pawel Juszczak v Alvaro Lopez San Martin | 6-7,6-7 |
| ITF M25 Gandia | 2021/07/24 14:30 | Javier Barranco Cosano v Alvaro Lopez San Martin | 7-5,6-3 |
| ITF M25 Gandia | 2021/07/23 08:00 | Alvaro Lopez San Martin v Francisco Andreu Garcia | 6-4,6-4 |
| ITF M25 Gandia | 2021/07/22 10:35 | Alvaro Lopez San Martin v Alejandro Manzanera Pertusa | 4-6,6-1,6-0 |