Stadium: Court 6 Round: 54 Ground: Clay
| ITF M15 Vejle | 2021/07/30 07:55 | Patrick Kypson v Overbeck, Carl Emil | 6-1,6-1 |
| ITF M15 Vejle | 2021/07/28 08:00 | Giorgio Ricca v Overbeck, Carl Emil | 3-6,4-6 |
| ITF M15 Vejle | 2021/07/26 12:25 | Overbeck, Carl Emil v Emesz, Benedikt | 6-1,6-7,10-7 |
| ITF M15 Vejle | 2021/07/25 07:00 | Lukas H Lilleengen v Overbeck, Carl Emil | 2-6,6-4,7-10 |
| 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 | 2021/06/17 12:30 | Lescure, Mick v Overbeck, Carl Emil | 6-3,0-6,3-6 |
| UTR Pro Tennis Series Copenhagen | 2021/06/15 11:00 | Norfeldt, David v Overbeck, Carl Emil | 6-7,5-6 |
| UTR Pro Tennis Series Copenhagen | 2021/06/14 11:00 | Overbeck, Carl Emil v Yitbarek, Simon | 6-4,5-1 |
| UTR Pro Tennis Series Nevada | 2021/06/24 16:30 | Lagaev, Nick v Maier, Jonas | 6-4,5-2 |
| UTR Pro Tennis Series Nevada | 2021/06/23 18:00 | Kiger, Mac v Maier, Jonas | 6-3,6-7,4-6 |
| UTR Pro Tennis Series Nevada | 2021/06/21 15:00 | Bjorn Swenson v Maier, Jonas | 6-4,6-4 |
| ITF M15 Kouvola | 2021/05/26 13:30 | Maier, Jonas v Joao Victor C Loureiro | 4-6,3-6 |
| ITF M15 Kouvola | 2021/05/25 09:10 | Maier, Jonas v Oskar Stumpf | 6-3,6-0 |
| ITF M15 Troisdorf | 2021/05/11 11:05 | Maier, Jonas v Timo Stodder | 2-6,1-6 |
| ITF M15 Troisdorf | 2021/05/10 11:00 | Buvaysar Gadamauri v Maier, Jonas | 5-7,6-4,4-10 |
| ITF M15 Troisdorf | 2021/05/09 10:00 | Maier, Jonas v Loncar, Stefan | 6-2,3-6,10-8 |