Stadium: Court 6 Round: 26 Ground: Clay
| ITF M25 Riba-Roja de Turia | 2019/10/09 08:40 | Nicolas Alvarez Varona v Carlos Lopez Montagud | 0-6,6-4,6-4 |
| ITF M15 Sabadell | 2019/10/02 12:10 | Nicolas Alvarez Varona v Carlos Lopez Montagud | 5-7,6-3,6-3 |
| ITF M25 Alkmaar | 2021/06/23 15:05 | Jesper De Jong v Nicolas Alvarez Varona | 4-6,6-4,4-6 |
| ITF M15 Heraklion | 2021/06/10 09:25 | Nicolas Alvarez Varona v Roman Andres Burruchaga | 7-6,2-6,1-6 |
| ITF M15 Heraklion | 2021/06/09 06:30 | Nicolas Alvarez Varona v Eduardo Cohen | 6-2,6-2 |
| ITF M15 Heraklion | 2021/06/05 08:10 | Ben Patael v Nicolas Alvarez Varona | 7-5,6-2 |
| ITF M15 Heraklion | 2021/06/04 06:25 | Nicolas Alvarez Varona v Ugo Blanchet | 6-1,7-5 |
| ITF M15 Heraklion | 2021/06/03 09:30 | Nicolas Alvarez Varona v Martin Breysach | 6-3,6-3 |
| ITF M15 Heraklion | 2021/06/02 13:50 | Nicolas Alvarez Varona v Matteo De Vincentis | 6-4,6-2 |
| ITF M15 Marbella | 2021/05/29 07:55 | Yannick Mertens v Nicolas Alvarez Varona | 1-6,7-5,6-3 |
| ITF M25 Alkmaar | 2021/06/23 12:10 | Louis Wessels v Carlos Lopez Montagud | 3-6,6-4,4-6 |
| ITF M25 Alkmaar | 2021/06/21 18:30 | Carlos Lopez Montagud v Benjamin Dhoe | 6-3,6-4 |
| ITF M15 Marbella | 2021/05/27 07:30 | Carlos Lopez Montagud v Roman Andres Burruchaga | 6-7,2-6 |
| ITF M15 Marbella | 2021/05/25 12:05 | Mick Lescure v Carlos Lopez Montagud | 3-6,5-7 |
| ITF M25 Vic | 2021/05/21 12:55 | Carlos Lopez Montagud v Pedro Cachin | 1-6,6-4,1-6 |
| ITF M25 Vic | 2021/05/20 09:00 | Carlos Lopez Montagud v Raul Brancaccio | 6-1,1-6,6-2 |
| ITF M25 Vic | 2021/05/19 13:50 | Filip Cristian Jianu v Carlos Lopez Montagud | 6-7,4-6 |
| ITF M25 Vic | 2021/05/18 08:00 | Gijs Brouwer v Carlos Lopez Montagud | 4-6,6-3,7-10 |