Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 Valldoreix | 2021/05/13 08:00 | Lopez San Martin, Alvaro v Tatlot, Johan Sebastien | 6-1,6-1 |
| ITF M15 Valldoreix | 2021/05/11 11:00 | Timo Legout v Tatlot, Johan Sebastien | 1-6,3-6 |
| UTR Pro Tennis Series Barcelona | 2021/05/01 15:30 | Tatlot, Johan Sebastien v Noah Lopez | 0-3 |
| UTR Pro Tennis Series Barcelona | 2021/04/30 11:00 | Tatlot, Johan Sebastien v Dzhavakian, Yurii | 6-3,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/04/28 12:30 | Tatlot, Johan Sebastien v Voljacques, Hugo | 3-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/04/27 10:00 | Tatlot, Johan Sebastien v Lescure, Mick | 6-4,5-1 |
| UTR Pro Tennis Series Barcelona | 2021/04/26 11:00 | Cuevas, Martin v Tatlot, Johan Sebastien | 6-1,5-3 |
| ITF - M25 Angers | 2021/04/21 10:10 | Corentin Denolly v Tatlot, Johan Sebastien | 6-2,6-7,7-6 |
| ITF M15 Genova | 2021/06/15 08:50 | Juan Bautista Otegui v Andrea Guerrieri | 6-3,6-1 |
| ITF M15 Valldoreix | 2021/05/14 08:00 | Lopez San Martin, Alvaro v Juan Bautista Otegui | 6-3,1-6,6-2 |
| ITF M15 Valldoreix | 2021/05/13 09:50 | Juan Bautista Otegui v Hamou, Maxime | 6-3,7-5 |
| ITF M15 Valldoreix | 2021/05/12 11:00 | Juan Bautista Otegui v Mario G Fernandez | 6-4,6-3 |
| ITF M15 Valldoreix | 2021/05/11 09:00 | Juan Bautista Otegui v Matas Ortega, Xavi | 7-5,6-3 |
| ITF M15 Valldoreix | 2021/05/10 10:00 | Pedro Vives Marcos v Juan Bautista Otegui | 6-2,3-6,1-10 |
| ITF M15 Valldoreix | 2021/05/09 12:00 | Juan Bautista Otegui v Gabarro, Xavier | 6-2,6-4 |
| ITF M15 Majadahonda | 2021/05/03 10:45 | Toledo Bague, Pol v Juan Bautista Otegui | 6-2,7-5 |