Stadium: Court 3 Round: 54
| Challenger Heilbronn | 2018/05/15 15:15 | Dominik Koepfer v Daniel Masur | 7-5,6-4 |
| Challenger Savannah | 2018/04/30 14:00 | Guilherme Clezar v Dominik Koepfer | 6-2,6-3 |
| Challenger Tallahassee | 2018/04/24 21:30 | Dominik Koepfer v Noah Rubin | 6-7,2-6 |
| Challenger Sarasota | 2018/04/16 14:00 | Akira Santillan v Dominik Koepfer | 6-3,3-6,6-2 |
| ATP Houston Qual | 2018/04/07 19:30 | Dominik Koepfer v Akira Santillan | 4-6,3-6 |
| Challenger Panama City | 2018/04/03 16:00 | Dominik Koepfer v Cristian Rodriguez | 4-6,6-4,4-6 |
| Challenger Drummondville | 2018/03/15 18:40 | Dominik Koepfer v Evan King | 4-6,6-7 |
| Challenger Drummondville | 2018/03/13 14:00 | Pavel Krainik v Dominik Koepfer | 6-3,5-7,2-6 |
| Challenger Glasgow | 2018/05/04 11:05 | David Guez v Daniel Brands | 6-4,5-7,6-2 |
| Challenger Glasgow | 2018/05/02 09:30 | Daniel Brands v Lucas Miedler | 6-1,6-3 |
| Challenger Glasgow | 2018/04/30 10:00 | Jared Hiltzik v Daniel Brands | 3-6,4-6 |
| Challenger Glasgow Qual | 2018/04/29 11:40 | Daniel Brands v Emil Ruusuvuori | 7-6,6-3 |
| Challenger Glasgow Qual | 2018/04/28 10:10 | Daniel Brands v Jacob Fearnley | 6-4,6-1 |
| ITF Tunisia F15 | 2018/04/22 09:00 | Daniel Brands v Baptiste Crepatte | 7-6,6-1 |
| ITF Tunisia F15 | 2018/04/21 10:45 | Daniel Brands v Luke Johnson | 6-3,6-2 |
| ITF Tunisia F15 | 2018/04/20 09:00 | Daniel Brands v Francesco Vilardo | 6-2,6-2 |