Stadium: Ct 9 Round: 25 Ground: Hardcourt outdoor
| US Open | 2019/08/19 19:00 | Gregoire Barrere v Andrew Harris | 6-7,7-6,7-6 |
| Challenger Aptos | 2019/08/06 17:00 | Roberto Quiroz v Andrew Harris | 6-3,6-3 |
| Challenger Lexington | 2019/07/31 15:45 | Diego Hidalgo v Andrew Harris | 6-4,7-6 |
| Challenger Granby | 2019/07/25 14:00 | Andrew Harris v Steven Diez | 4-6,2-6 |
| Challenger Granby | 2019/07/24 15:35 | Andrew Harris v Yannick Mertens | 6-1,6-1 |
| Challenger Gatineau | 2019/07/17 14:00 | Joao Menezes v Andrew Harris | 4-6,6-3,6-4 |
| Challenger Winnipeg | 2019/07/11 17:45 | Andrew Harris v Norbert Gombos | 6-4,2-6,3-6 |
| Challenger Winnipeg | 2019/07/10 19:10 | Andrew Harris v Alexander Ritschard | 6-1,6-2 |
| Challenger Meerbusch | 2019/08/14 11:15 | Lucas Gerch v Pedja Krstin | 1-6,4-6 |
| Challenger Meerbusch | 2019/08/12 10:35 | Vaclav Safranek v Lucas Gerch | 4-6,2-6 |
| ITF M15 Wetzlar | 2019/08/09 13:00 | Lucas Gerch v Bruno Santanna | 6-1,1-6,3-6 |
| ITF M15 Wetzlar | 2019/08/08 15:10 | Lucas Gerch v Maxime Tchoutakian | 6-1,6-3 |
| ITF M15 Wetzlar | 2019/08/07 12:40 | Lucas Gerch v Marvin Netuschil | 7-6,6-2 |
| ITF M15 Wetzlar | 2019/08/06 11:30 | Lucas Gerch v Calvin Mueller | 6-4,6-4 |
| ITF M25 Kassel | 2019/07/21 11:00 | Jules Okala v Lucas Gerch | 7-6,3-6,4-6 |
| ITF M25 Kassel | 2019/07/20 12:10 | Lucas Gerch v Louis Wessels | 7-5,6-4 |