Stadium: Stadium Round: 25 Ground: Hardcourt outdoor
| ITF M15 Guatemala | 2021/11/25 18:45 | Peter Bertran v Chen, Kuan Yu | 5-7,7-5,6-7 |
| ITF M15 Guatemala | 2021/11/24 15:30 | Peter Bertran v Santamaria, Felipe | 6-1,6-0 |
| ITF M25 Austin | 2021/11/18 19:50 | Sander Jong v Peter Bertran | 6-7,3-6 |
| ITF M25 Austin | 2021/11/16 23:25 | Peter Bertran v Lopez Villasenor, Gerardo | 3-6,6-1,6-1 |
| ITF M25 Harlingen | 2021/11/10 22:00 | Peter Bertran v Jaimee Floyd Angele | 2-6,2-6 |
| ITF M15 Cancun | 2021/10/20 17:00 | Giles Hussey v Peter Bertran | 6-2,7-5 |
| ITF M15 Naples | 2021/10/08 14:30 | Peter Bertran v Harrison, Ryan | 3-6,1-6 |
| ITF M15 Naples | 2021/10/07 17:15 | Peter Bertran v Thiago Cigarran | 6-4,6-1 |
| ITF - M25 Santo Domingo | 2021/11/30 13:00 | Achondo, Gonzalo v Marko Stakusic | 1-6,1-6 |
| ITF - M25 Santo Domingo | 2021/11/28 13:30 | Lawrence, Xavier v Marko Stakusic | 2-6,4-6 |
| ITF M15 Novi Sad | 2021/08/01 11:15 | Marko Stakusic v Petar Jovanovic | 5-7,3-6 |
| ITF M15 Novi Sad | 2021/07/25 12:00 | Marko Stakusic v Lahky, Nikolas | 3-6,5-7 |
| ITF - M15 Doboj | 2021/07/13 08:00 | Tadic, Vladan v Marko Stakusic | 6-3,6-4 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/02 14:30 | Gauthier Onclin v Marko Stakusic | 6-1,6-1 |
| ITF M25 Kiseljak | 2021/05/25 12:55 | Gorazd Srbljak v Marko Stakusic | 4-6,6-3,6-2 |
| Challenger Granby | 2019/07/22 13:00 | Reese, Hunter v Marko Stakusic | 6-4,7-5 |