Stadium: Center Round: 27 Ground: Hardcourt outdoor
| Challenger Columbus 2 | 2016/11/21 20:00 | Marcos Giron v Dominik Koepfer | 6-7,4-6 |
| Challenger Ilkley | 2019/06/23 10:00 | Dennis Novak v Dominik Koepfer | 6-3,3-6,6-7 |
| Challenger Ilkley | 2019/06/22 11:00 | Go Soeda v Dominik Koepfer | 4-6,1-6 |
| Challenger Ilkley | 2019/06/21 11:40 | Dominik Koepfer v Ugo Humbert | 6-4,6-3 |
| Challenger Ilkley | 2019/06/20 13:00 | Dominik Koepfer v Jason Jung | 7-6,6-4 |
| Challenger Ilkley | 2019/06/19 15:40 | Yannick Maden v Dominik Koepfer | 2-6,4-6 |
| Challenger Ilkley | 2019/06/18 12:05 | Marc Polmans v Dominik Koepfer | 6-7,3-6 |
| Challenger Nottingham | 2019/06/15 10:00 | Daniel Evans v Dominik Koepfer | 7-6,6-7,6-4 |
| Challenger Nottingham | 2019/06/13 10:30 | Dominik Koepfer v Kamil Majchrzak | 6-3,6-4 |
| Wimbledon | 2019/06/27 10:00 | Marcos Giron v Viktor Galovic | 7-5,6-2,2-6,6-4 |
| Wimbledon | 2019/06/26 11:25 | Antoine Hoang v Marcos Giron | 4-6,6-7 |
| Wimbledon | 2019/06/24 10:00 | Arthur De Greef v Marcos Giron | 2-6,3-6 |
| Challenger Ilkley | 2019/06/18 17:15 | Marcel Granollers v Marcos Giron | 6-4,6-3 |
| Challenger Ilkley | 2019/06/17 16:05 | Marcos Giron v Filippo Baldi | 6-1,6-4 |
| ATP Hertogenbosch | 2019/06/09 09:00 | Marcos Giron v Salvatore Caruso | 3-6,6-3,3-6 |
| ATP Hertogenbosch | 2019/06/08 10:25 | Jason Jung v Marcos Giron | 2-6,7-5,2-6 |
| French Open | 2019/05/22 12:50 | Marcos Giron v Lukas Rosol | 4-6,4-6 |