Stadium: Court 1 Round: 26 Ground: Clay
| ATP Budapest MD | 2018/04/24 15:20 | Mirnyi/Oswald v Inglot/Skugor | 6-4,5-7,7-10 |
| ATP Houston MD | 2018/04/14 23:45 | Mirnyi/Oswald v Begemann/Sancic | 6-7,6-4,11-9 |
| ATP Houston MD | 2018/04/14 03:10 | Bryan/Bryan v Mirnyi/Oswald | 4-6,6-2,6-10 |
| ATP Houston MD | 2018/04/12 19:00 | Mirnyi/Oswald v Lipsky/Sandgren | 6-7,7-6,11-9 |
| ATP Houston MD | 2018/04/11 17:00 | Peralta/Zeballos v Mirnyi/Oswald | 3-6,6-7 |
| ATP Acapulco MD | 2018/03/01 03:30 | Mirnyi/Oswald v Harrison/Sock | 7-6,3-6,9-11 |
| ATP Acapulco Qual MD | 2018/02/26 00:00 | Mirnyi/Oswald v Albot/Basilashvili | 7-5,5-7,0-0 |
| ATP Delray Beach MD | 2018/02/20 21:00 | Ebden/Young v Mirnyi/Oswald | 3-6,7-6,10-5 |