| UTR Pro Tennis Series - Kodaň | 2021/06/19 10:00 | Jesper Klov Nilsson v Ludvig Aaes | 6-3,4-1 |
| UTR Pro Tennis Series - Kodaň | 2021/06/18 09:30 | Daniel De Jonge v Jesper Klov Nilsson | 6-3,4-6,6-3 |
| UTR Pro Tennis Series - Kodaň | 2021/06/17 09:30 | Javier A M Crespo v Jesper Klov Nilsson | 6-2,6-0 |
| UTR Pro Tennis Series - Kodaň | 2021/06/16 08:00 | Benjamin Hannestad v Jesper Klov Nilsson | 6-2,5-2 |
| UTR Pro Tennis Series - Kodaň | 2021/06/14 11:00 | Oskar Brostrom Poulsen v Jesper Klov Nilsson | 3-6,3-6 |
| ITF M15 Kalmar | 2019/05/14 10:55 | Lucas Renard v Jesper Klov Nilsson | 6-3,6-0 |
| ITF M15 Kalmar | 2019/05/13 12:25 | Jesper Klov Nilsson v John Harrison Richmond | 7-5,6-7,10-8 |
| ITF M15 Karlskrona | 2019/05/07 10:40 | Patrick Mayer v Jesper Klov Nilsson | 6-4,6-3 |
| UTR Pro Tennis Series - Kodaň | 2021/06/19 11:30 | Gustav Theilgaard v Hugo Pierre | 6-4,7-5 |
| UTR Pro Tennis Series - Kodaň | 2021/06/18 08:00 | Sebastian Grundtvig Jorgensen v Gustav Theilgaard | 6-4,6-2 |
| UTR Pro Tennis Series - Kodaň | 2021/06/17 11:00 | Henrik Atlevi v Gustav Theilgaard | 5-7,2-6 |
| UTR Pro Tennis Series - Kodaň | 2021/06/15 08:22 | Maxim Landa v Gustav Theilgaard | 7-5,6-4 |