Stadium: Pista 7 Round: 25 Ground: Clay
| ITF M15 Antalya | 2021/05/07 06:55 | Filip Cristian Jianu v Orlando Luz | 1-6,6-3,3-6 |
| ITF M15 Antalya | 2021/05/06 11:10 | Filip Cristian Jianu v Jacopo Berrettini | 6-2,6-4 |
| ITF M15 Antalya | 2021/05/04 11:20 | Filip Cristian Jianu v Dali Blanch | 6-2,6-3 |
| Challenger Tallahassee | 2021/04/23 18:00 | Filip Cristian Jianu v Denis Kudla | 6-7,6-3,5-7 |
| Challenger Tallahassee | 2021/04/22 16:25 | Filip Cristian Jianu v Joao Menezes | 6-4,6-4 |
| Challenger Tallahassee | 2021/04/20 19:55 | Dmitry Popko v Filip Cristian Jianu | 7-6,3-6,4-6 |
| Challenger Tallahassee | 2021/04/19 15:00 | Donald Young v Filip Cristian Jianu | 4-6,2-6 |
| Challenger Tallahassee | 2021/04/18 19:30 | Aleksandar Kovacevic v Filip Cristian Jianu | 4-6,7-5,6-7 |
| ITF M25 Vic | 2021/05/18 08:00 | Gijs Brouwer v Carlos Lopez Montagud | 4-6,6-3,7-10 |
| ITF M25 Vic | 2021/05/17 09:00 | Ivan Bas Mengual v Carlos Lopez Montagud | 1-6,0-6 |
| ITF M25 Vic | 2021/05/16 08:00 | Pol Amoros Ramos v Carlos Lopez Montagud | 7-6,3-6,6-10 |
| ITF M15 Majadahonda | 2021/05/03 16:00 | Arthur Fils v Carlos Lopez Montagud | 6-3,6-3 |
| ITF M15 Majadahonda | 2021/05/03 12:00 | Goncalo Falcao v Carlos Lopez Montagud | 0-6,3-6 |
| ITF M15 Majadahonda | 2021/05/02 13:15 | Mario G Fernandez v Carlos Lopez Montagud | 1-6,2-6 |
| ITF M15 Cairo | 2021/04/21 15:05 | Santiago De La Fuente v Carlos Lopez Montagud | 6-4,2-6,4-6 |
| ITF M15 Cairo | 2021/04/16 08:30 | Carlos Lopez Montagud v Daniel Michalski | 3-6,6-3,4-6 |