Stadium: Campo Centrale Round: 14 Ground: Clay
| ITF M25 Bolzano | 2021/08/02 07:00 | Nicolo Pozzani v Luca Castagnola | 4-6,6-2,8-10 |
| Challenger Prague | 2021/08/08 12:00 | Facundo Diaz Acosta v Matija Pecotic | 7-6,6-1 |
| ATP Umag | 2021/07/19 14:30 | Daniel Altmaier v Matija Pecotic | 3-6,6-4,6-3 |
| ATP Umag | 2021/07/18 16:15 | Matija Pecotic v Thomas Fabbiano | 7-5,6-2 |
| Challenger Iasi | 2021/07/15 09:00 | Hugo Gaston v Matija Pecotic | 4-6,6-4,7-6 |
| Challenger Iasi | 2021/07/13 10:50 | Matija Pecotic v Roberto Ortega-Olmedo | 4-6,6-0,6-1 |
| UTR Pro Tennis Series Zadar | 2021/07/04 10:00 | Matija Pecotic v Deni Zmak | 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 | Alexander Kiefer v Matija Pecotic | 1-6,0-6 |