Stadium: Court 2 Round: 25 Ground: Clay
| UTR Pro Tennis Series Zadar | 2021/07/04 10:00 | Matija Pecotic v Zmak, Deni | 6-3,6-3 |
| UTR Pro Tennis Series Zadar | 2021/07/03 07:00 | Matija Pecotic v Roko Horvat | 6-3,5-4 |
| UTR Pro Tennis Series Zadar | 2021/07/02 09:30 | Kiefer, Alexander v Matija Pecotic | 1-6,0-6 |
| UTR Pro Tennis Series Zadar | 2021/07/01 11:00 | Kajin, Karlo v Matija Pecotic | 1-6,2-5 |
| UTR Pro Tennis Series Zadar | 2021/06/30 09:30 | Goetz, Ryan v Matija Pecotic | 6-7,4-5 |
| UTR ProTennis Series Zadar | 2021/06/28 08:00 | Khomich, Aleksei v Matija Pecotic | 1-6,2-5 |
| ITF M25 Grasse | 2021/06/17 14:10 | Matija Pecotic v Briand, Jurgen | 2-6,4-6 |
| ITF M25 Grasse | 2021/06/16 10:30 | Matija Pecotic v Petit, Gabriel | 4-6,6-1,6-2 |
| ITF M25 Ajaccio | 2021/07/08 17:05 | Clement Chidekh v Ortega-Olmedo, Roberto | 6-2,2-6,6-2 |
| ITF M25 Ajaccio | 2021/07/07 07:00 | Simone Agostini v Ortega-Olmedo, Roberto | 1-6,3-6 |
| ITF M25 Bakio | 2021/07/01 12:45 | Ortega-Olmedo, Roberto v John Echeverria | 6-7,2-6 |
| ITF M25 Bakio | 2021/06/30 14:10 | Ortega-Olmedo, Roberto v Alex M Pujolras | 7-5,6-3 |
| ATP Mallorca | 2021/06/19 14:15 | Ortega-Olmedo, Roberto v Istomin, Denis | 6-4,5-7,6-7 |
| Challenger Almaty | 2021/06/07 08:45 | Kimmer Coppejans v Ortega-Olmedo, Roberto | 6-1,6-2 |
| Challenger - Oeiras | 2021/05/25 10:00 | Chun Hsin Tseng v Ortega-Olmedo, Roberto | 6-4,6-2 |
| ITF - M25 Vic | 2021/05/21 10:55 | Bondarevskiy, Yan v Ortega-Olmedo, Roberto | 6-3,6-3 |