Stadium: Court 5 Round: 25 Ground: Clay
| Challenger Loughborough Qual | 2018/05/21 11:25 | Tobias Simon v Daniel Evans | 4-6,6-7 |
| Challenger Loughborough Qual | 2018/05/20 11:30 | Tobias Simon v Alexis Canter | 7-5,7-6 |
| Challenger Loughborough Qual | 2018/05/19 13:35 | Tobias Simon v Francesco Ferrari | 6-4,7-6 |
| Challenger Heilbronn Qual | 2018/05/13 10:35 | Clement Geens v Tobias Simon | 7-5,3-6,6-3 |
| Challenger Puerto Vallarta Qual | 2018/04/29 16:00 | Tobias Simon v Ivan Endara | 6-1,6-4 |
| Challenger Puerto Vallarta Qual | 2018/04/28 16:00 | Tobias Simon v Juan Ignacio Batalla | 6-4,6-4 |
| Challenger Leon | 2018/04/24 19:20 | Tobias Simon v Christopher Eubanks | 6-7,6-7 |
| Challenger Leon Qual | 2018/04/23 16:00 | Rubin Statham v Tobias Simon | 7-6,6-3 |
| ITF Hungary F3 | 2018/05/26 10:20 | Samuel Bensoussan v Marko Tepavac | 4-6,1-6 |
| ITF Hungary F3 | 2018/05/26 07:30 | Mick Lescure v Marko Tepavac | 4-6,2-6 |
| ITF Hungary F3 | 2018/05/24 08:30 | Denis Klok v Marko Tepavac | 4-6,1-6 |
| ITF Hungary F3 | 2018/05/23 10:10 | Isa Mammetgulyyev v Marko Tepavac | 2-6,3-6 |
| ITF Hungary F3 | 2018/05/22 08:00 | Maxime Mora v Marko Tepavac | 2-6,4-6 |
| Challenger Ostrava Qual | 2018/04/29 12:20 | Mathias Bourgue v Marko Tepavac | 6-2,6-3 |
| Challenger Ostrava Qual | 2018/04/28 11:40 | Marko Tepavac v Pascal Brunner | 6-4,7-5 |
| Challenger Barletta | 2018/04/10 12:40 | Marko Tepavac v Gastao Elias | 6-3,5-7,0-6 |