| Challenger Savannah | 2025/04/21 14:00 | Christian Sigsgaard v Stefan Kozlov | 4-6,4-6 |
| Challenger Savannah | 2025/04/20 15:30 | Tyler Zink v Christian Sigsgaard | 3-6,5-7 |
| Challenger Tallahassee | 2025/04/15 20:55 | Christian Sigsgaard v Emilio Nava | 4-6,4-6 |
| Challenger Tallahassee | 2025/04/14 16:10 | Christian Sigsgaard v Alex Rybakov | 3-6,7-6,6-3 |
| Challenger Sarasota | 2025/04/06 15:35 | Genaro Alberto Olivieri v Christian Sigsgaard | 6-2,6-4 |
| ITF M25 Trento | 2025/02/23 09:30 | Daniil Glinka v Christian Sigsgaard | 2-6,3-6 |
| ITF M25 Trento | 2025/02/22 13:30 | Christian Sigsgaard v Marvin Moeller | 6-3,7-6 |
| ITF M25 Trento | 2025/02/21 13:30 | Christian Sigsgaard v Dennis Novak | 6-4,6-2 |
| ITF M25 Aarhus | 2024/06/11 09:35 | Valdemar Frederik Pape v Lucas Gerch | 1-6,4-6 |
| ITF M15 Vejle | 2023/07/26 13:20 | Alec Deckers v Valdemar Frederik Pape | 6-0,6-2 |
| ITF M15 Vejle | 2023/07/24 15:15 | Radovan Michalik v Valdemar Frederik Pape | 1-6,4-6 |
| ITF M15 Vejle | 2023/07/24 09:30 | Valdemar Frederik Pape v Eldin Nokic | 7-6,6-4 |
| UTR Pro Copenhagen | 2023/05/29 08:00 | Oskar Brostrom Poulsen v Valdemar Frederik Pape | 6-3,6-1 |
| ITF M15 Frederiksberg | 2022/08/01 09:20 | Lewie Lane v Valdemar Frederik Pape | 6-2,6-1 |
| ITF M15 Frederiksberg | 2022/07/31 07:00 | Patrick Kristensen v Valdemar Frederik Pape | 4-6,6-3,6-10 |
| ITF M15 Vejle | 2022/07/26 09:40 | Eero Vasa v Valdemar Frederik Pape | 7-6,4-6,10-6 |