Stadium: Court 16 Round: 24 Ground: Clay
| ATP Geneva MD | 2018/05/22 10:00 | Lindstedt/Vasilevski v Begemann/Sancic | 7-6,7-6 |
| Challenger Aix en Provence MD | 2018/05/09 10:30 | Arneodo/Nys v Begemann/Sancic | 6-3,4-6,10-6 |
| ATP Istanbul MD | 2018/05/02 14:15 | Molchanov/Skugor v Begemann/Sancic | 6-1,7-6 |
| Challenger Sarasota MD | 2018/04/21 16:15 | Begemann/Sancic v Harrison/Polansky | 7-5,3-6,5-10 |
| Challenger Sarasota MD | 2018/04/19 17:30 | Cuevas/Dellien v Begemann/Sancic | 1-6,6-3,7-10 |
| ATP Houston MD | 2018/04/14 23:45 | Mirnyi/Oswald v Begemann/Sancic | 6-7,6-4,11-9 |
| ATP Houston MD | 2018/04/13 22:00 | Begemann/Sancic v Brown/Tiafoe | 6-3,3-6,10-7 |
| ATP Houston MD | 2018/04/12 22:35 | Begemann/Sancic v Gonzalez/Young | 7-6,6-2 |
| ATP Geneva MD | 2018/05/22 10:00 | Lipsky/Marrero v Koolhof/Sitak | 7-6,4-6,10-7 |
| Challenger Bordeaux MD | 2018/05/14 10:15 | Koolhof/Sitak v Albot/Kozlov | 5-7,1-6 |
| ATP Estoril MD | 2018/05/06 12:00 | Koolhof/Sitak v Edmund/Norrie | 4-6,2-6 |
| ATP Estoril MD | 2018/05/05 12:00 | Eysseric/Salisbury v Koolhof/Sitak | 5-7,3-6 |
| ATP Estoril MD | 2018/05/03 13:45 | Koolhof/Sitak v Elias/Sousa | 7-6,4-6,10-8 |
| ATP Estoril MD | 2018/05/02 11:00 | Lopez/Marrero v Koolhof/Sitak | 7-6,4-6,3-10 |
| ATP Budapest MD | 2018/04/26 09:00 | Koolhof/Sitak v Matkowski/Monroe | 3-6,4-6 |
| ATP Budapest MD | 2018/04/25 09:00 | Mektic/Peya v Koolhof/Sitak | 5-7,7-6,7-10 |