Stadium: Court 12 Round: 62 Ground: Clay
| UTR Pro Tennis Series - Pazardzhik | 2021/03/31 08:30 | Thomas Laurent v Juan Bautista Otegui | 7-5,5-4 |
| UTR Pro Tennis Series - Pazardzhik | 2021/03/30 07:00 | Dinko Dinev v Juan Bautista Otegui | 1-6,1-5 |
| ITF - M15 Opatija | 2021/03/24 10:45 | Giovanni Fonio v Juan Bautista Otegui | 6-3,6-4 |
| ITF - M15 Rovinj | 2021/03/15 14:10 | Juan Bautista Otegui v Kristijan Juhas | 0-6,2-6 |
| ITF - M15 Porec | 2021/03/07 12:00 | Juan Bautista Otegui v Samuel Brosset | 4-6,6-1,3-10 |
| UTR Pro Tennis Series Barcelona | 2021/01/31 09:00 | Bruno P Navarro v Juan Bautista Otegui | 3-6,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/01/30 11:00 | Juan Bautista Otegui v Oriol Roca Batalla | 7-5,4-0 |
| UTR Pro Tennis Series Barcelona | 2021/01/28 12:00 | Nikolas Sanchez Izquierdo v Juan Bautista Otegui | 7-5,6-2 |
| ITF - M15 LPD Gran Canaria | 2021/04/28 11:25 | Alexander Weis v Diego F Flores | 0-6,6-2,6-3 |
| ITF - M25 Reus | 2021/04/11 07:00 | Xavi Matas Ortega v Diego F Flores | 6-7,6-2,10-6 |
| ITF - M15 Monastir | 2021/03/21 18:00 | Olivier Rojas v Diego F Flores | 6-4,6-2 |
| ITF - M15 Monastir | 2021/03/15 12:30 | Igor Marcondes v Diego F Flores | 6-3,6-1 |
| ITF - M15 Monastir | 2021/03/15 08:00 | Julien De Cuyper v Diego F Flores | 2-6,0-6 |
| ITF - M15 Sharm El Sheikh | 2021/03/02 11:55 | Edoardo Eremin v Diego F Flores | 6-4,6-7,10-1 |
| ITF - M15 Sharm El Sheikh | 2021/03/01 07:30 | Jack Gibbens v Diego F Flores | 4-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2021/02/28 09:30 | Pavle Daljev v Diego F Flores | 6-2,5-7,5-10 |