| UTR Pro Tennis Series - Copenhaga | 2021/10/19 07:00 | Adam Heinonen v Alexander Stage | 6-3,6-3 |
| UTR Pro Tennis Series - Copenhaga | 2021/10/18 08:30 | Drew Van Orderlain v Adam Heinonen | 4-6,5-7 |
| ITF - M25 Falun | 2021/09/26 08:00 | Sebastian Eriksson v Adam Heinonen | 6-2,4-6,12-10 |
| ITF - M25 Jönköping | 2021/09/20 07:30 | Arvid Nordquist v Adam Heinonen | 6-3,6-4 |
| ITF - M15 Frederiksberg | 2021/08/02 08:50 | Adam Heinonen v Christopher Patzanovsky | 3-6,4-6 |
| ITF - M15 Frederiksberg | 2021/08/01 08:00 | Adam Heinonen v Nikolaj Katic | 6-3,6-7,10-6 |
| ITF - M15 Vejle | 2021/07/25 07:00 | Adam Heinonen v Philip Hjorth | 1-6,6-4,8-10 |
| ITF - M15 Antália | 2021/05/09 07:00 | Adam Heinonen v Riccardo Di Nocera | 3-6,6-2,2-10 |
| UTR Pro Tennis Series - Copenhaga | 2021/10/18 10:00 | Marius Ruzgas v Simon Friis Soendergaard | 2-6,4-5 |
| ITF - M15 Frederiksberg | 2021/08/01 10:00 | Gabriel Decamps v Simon Friis Soendergaard | 6-4,6-2 |
| ITF - EUA F27 | 2017/08/09 18:00 | Genaro Alberto Olivieri v Simon Friis Soendergaard | 6-4,5-2 |
| ITF - EUA F27 - Qualificação | 2017/08/07 16:25 | Simon Friis Soendergaard v Francisco Dias | 7-6,2-6,6-3 |