| UTR Pro Tennis Series Copenhagen | 2021/06/18 08:00 | Jorgensen, Sebastian Grundtvig v Gustav Theilgaard | 6-4,6-2 |
| UTR Pro Tennis Series Copenhagen | 2021/06/17 11:00 | Henrik Atlevi v Gustav Theilgaard | 5-7,2-6 |
| UTR Pro Tennis Series Copenhagen | 2021/06/15 08:22 | Landa, Maxim v Gustav Theilgaard | 7-5,6-4 |
| UTR Pro Tennis Series Copenhagen | 2021/06/18 11:00 | Pierre, Hugo v Overbeck, Carl Emil | 2-6,2-6 |
| UTR Pro Tennis Series Copenhagen | 2021/06/16 11:00 | Pierre, Hugo v Yitbarek, Simon | 6-3,1-6,7-5 |
| UTR Pro Tennis Series Copenhagen | 2021/06/15 09:30 | Pierre, Hugo v Lescure, Mick | 6-2,5-7,3-5 |
| UTR Pro Tennis Series Copenhagen | 2021/06/14 12:30 | Norfeldt, David v Pierre, Hugo | 6-7,3-6 |
| UTR Pro Tennis Series Bucharest | 2021/06/03 10:30 | Melnic, Vladislav v Pierre, Hugo | 6-4,6-2 |
| UTR Pro Tennis Series Bucharest | 2021/06/02 17:30 | Galarza, Juan Ignacio v Pierre, Hugo | 6-4,5-3 |
| UTR Pro Tennis Series Bucharest | 2021/05/30 11:30 | Pierre, Hugo v Stefan Palosi | 3-6,0-6 |
| ITF - M15 Monastir | 2021/05/09 11:00 | Louis Tessa v Pierre, Hugo | 6-2,6-0 |