| German Championship | 2021/12/11 12:00 | Timo Stodder v Gelhardt, Luca | 6-1,7-5 |
| German Championship | 2021/12/10 12:00 | Seifert, Stefan v Gelhardt, Luca | 4-6,5-7 |
| German Championship | 2021/12/09 10:00 | Milan Welte v Gelhardt, Luca | 4-6,6-3,6-6 |
| German Championship | 2021/12/08 09:00 | Tom Gentzsch v Gelhardt, Luca | 4-6,1-6 |
| Exo Tennis Germany Series | 2020/07/31 11:00 | Hazem Naw v Gelhardt, Luca | 4-6,7-5,6-1 |
| Exo Tennis Germany Series | 2020/07/30 10:30 | Gelhardt, Luca v Benjamin Hassan | 5-7,4-6 |
| Exo Tennis Germany Series | 2020/07/29 11:10 | Gelhardt, Luca v Haerteis, Johannes | 4-6,3-6 |
| Exo Tennis Germany Series | 2020/07/28 08:00 | Schmitz, Constantin v Gelhardt, Luca | 6-3,6-1 |
| Challenger Calgary | 2022/11/07 00:15 | Florig, Philip v Haerteis, Johannes | 3-6,2-6 |
| ITF M15 Parnu | 2022/10/28 08:00 | Florig, Philip v Nicolas Kobelt | 1-6,6-2,3-6 |
| ITF M15 Parnu | 2022/10/25 09:30 | Hendrik Katmuk v Florig, Philip | 0-6,0-6 |
| Challenger - Hambourg | 2022/10/16 11:15 | Andrew Paulson v Florig, Philip | 6-2,6-2 |
| Challenger Ismaning | 2022/10/12 13:25 | Florig, Philip v Vasek Pospisil | 3-6,2-6 |
| ITF M15 Forbach | 2022/09/28 10:40 | Boris Fassbender v Florig, Philip | 7-6,6-1 |
| ITF M15 Ueberlingen | 2022/08/18 08:00 | Florig, Philip v Stefan Popovic | 2-6,1-6 |
| ITF M15 Ueberlingen | 2022/08/16 11:30 | Peter Nad v Florig, Philip | 2-6,7-6,2-6 |