Round: 26 Ground: Clay
| Challenger Savannah - Herrdubbel | 2018/05/03 15:00 | Lopez-Perez/Nedunchezhiyan v Galloway/Siljestrom | 2-6,6-4,10-5 |
| Challenger Savannah - Herrdubbel | 2018/05/02 16:30 | Galloway/Siljestrom v Krueger/Reese | 7-6,7-6 |
| Challenger Rome - Herrdubbel | 2018/05/10 14:45 | Draganja/Draganja v Bracciali/Quinzi | 5-7,4-6 |
| Challenger Rome - Herrdubbel | 2018/05/07 14:10 | Draganja/Draganja v Kolar/Pavlasek | 6-3,2-6,10-4 |
| Challenger Francavilla - Herrdubbel | 2018/04/25 08:00 | Draganja/Draganja v Molchanov/Zelenay | 2-6,2-6 |
| Challenger Barletta - Herrdubbel | 2018/04/09 13:25 | Draganja/Draganja v Motti/Vavassori | 6-2,6-7,6-10 |
| Challenger Shenzhen - Herrdubbel | 2018/03/15 08:55 | Te/Wu v Draganja/Draganja | 4-6,6-3,10-7 |
| Challenger Shenzhen - Herrdubbel | 2018/03/13 02:00 | Hurkacz/Majchrzak v Draganja/Draganja | 5-7,6-7 |
| Challenger Zhuhai - Herrdubbel | 2018/03/06 02:00 | Hsieh/Junaid v Draganja/Draganja | 6-2,6-3 |
| Challenger Bergamo - Herrdubbel | 2018/02/19 15:00 | Draganja/Draganja v Grigelis/Motti | 7-6,2-6,5-10 |