Stadium: Center Court Grosshesselohe Round: 1
| Challenger Koblenz | 2020/02/19 09:00 | Tallon Griekspoor v Lucas Gerch | 6-4,2-6,7-6 |
| Challenger Koblenz | 2020/02/18 10:20 | Enrico Dalla Valle v Lucas Gerch | 1-6,4-6 |
| Challenger Koblenz | 2020/02/17 09:00 | Lucas Gerch v Johann Willems | 6-1,6-7,6-1 |
| ITF M25 Naples | 2020/02/13 15:00 | Eduard Esteve Lobato v Lucas Gerch | 7-6,4-6,7-5 |
| ITF M25 Naples | 2020/02/11 16:25 | Lucas Gerch v Javier Barranco Cosano | 7-5,6-3 |
| ITF M25 Palm Coast | 2020/02/06 16:55 | Gianluigi Quinzi v Lucas Gerch | 3-6,7-6,6-1 |
| ITF M25 Palm Coast | 2020/02/05 19:00 | Lucas Gerch v Nick Hardt | 4-6,6-1,6-3 |
| ITF M25 Weston | 2020/01/29 15:55 | Lucas Gerch v Manuel Pena Lopez | 5-7,5-7 |