Stadium: Court 1 Round: 62 Ground: Clay
| ITF M15 - Sibenik | 2021/04/19 14:30 | Borna Devald v Tim Heger | 3-6,2-6 |
| ITF M15 - Sibenik | 2021/04/18 13:00 | Borna Devald v Obrad Markovski | 6-3,5-7,10-7 |
| ITF M15 - Opatija | 2021/03/24 13:10 | Corentin Denolly v Borna Devald | 6-3,6-2 |
| ITF M15 - Rovinj | 2021/03/15 08:00 | Damien Wenger v Borna Devald | 6-0,4-6,10-2 |
| ITF M15 - Porec | 2021/03/08 10:00 | Samuel Brosset v Borna Devald | 7-5,6-4 |
| ITF M15 - Porec | 2021/03/07 11:30 | Borna Devald v Julian Onken | 7-5,6-2 |
| Challenger Split | 2020/09/26 14:15 | Malek Jaziri v Borna Devald | 6-1,7-5 |
| Adriatic Tennis Series | 2020/06/15 08:00 | Dino Prizmic v Borna Devald | 0-0 |
| ITF M15 - Troisdorf | 2021/05/09 13:00 | Yann Marti v Marvin Greven | 6-3,6-1 |
| ITF M25 - Biel | 2021/03/30 11:55 | Otto Virtanen v Yann Marti | 6-3,6-3 |
| ITF M25 - Biel | 2021/03/29 12:05 | Yann Marti v Marvin Moeller | 6-4,6-7,10-5 |
| ITF M25 - Trimbach | 2021/03/10 12:00 | Yann Marti v Luca Staeheli | 6-2,6-3 |
| ITF M25 - Trimbach | 2021/03/09 10:30 | Yann Marti v Lewie Lane | 6-2,6-2 |
| ITF M25 - Trimbach | 2021/03/08 11:25 | Yann Marti v Raffaele Mariani | 6-1,6-4 |
| ITF M15 - Grenoble | 2021/02/07 14:25 | Federico Iannaccone v Yann Marti | 6-7,7-6,10-7 |
| ITF M15 - Bratislava | 2020/11/25 13:45 | Yann Marti v Tobias Simon | 3-6,6-7 |