Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Guadalajara | 2018/04/21 21:00 | Christopher Eubanks v Pedja Krstin | 6-2,7-6 |
| Challenger Guadalajara | 2018/04/20 21:00 | Pedja Krstin v Darian King | 6-2,1-6,6-2 |
| Challenger Guadalajara | 2018/04/19 01:00 | Pedja Krstin v Manuel Sanchez | 6-3,6-1 |
| Challenger Guadalajara | 2018/04/16 18:00 | Dennis Novikov v Pedja Krstin | 6-7,3-6 |
| Challenger Mexico City | 2018/04/11 19:00 | Roberto Quiroz v Pedja Krstin | 4-6,6-1,6-4 |
| Challenger Mexico City | 2018/04/09 23:00 | Danilo Petrovic v Pedja Krstin | 3-6,6-1,4-6 |
| Challenger Panama City | 2018/04/03 21:50 | Pedja Krstin v Jay Clarke | 5-7,2-6 |
| Challenger San Luis Potosi | 2018/03/29 18:00 | Pedro Sakamoto v Pedja Krstin | 4-6,6-3,7-5 |
| Challenger Anning | 2018/04/29 05:00 | Prajnesh Gunneswaran v Mohamed Safwat | 5-7,6-3,6-1 |
| Challenger Anning | 2018/04/28 03:00 | Jordan Thompson v Mohamed Safwat | 6-2,4-6,3-6 |
| Challenger Anning | 2018/04/27 04:20 | Yan Bai v Mohamed Safwat | 1-6,3-6 |
| Challenger Anning | 2018/04/26 04:50 | Mohamed Safwat v Yibing Wu | 1-6,6-3,6-4 |
| Challenger Anning | 2018/04/24 04:20 | Mohamed Safwat v Vishnu Vardhan | 3-6,7-6,6-2 |
| Challenger Nanchang | 2018/04/17 03:00 | Mohamed Safwat v Quentin Halys | 6-7,4-6 |
| Challenger Barletta | 2018/04/10 09:30 | Viktor Galovic v Mohamed Safwat | 4-6,6-3,6-2 |
| Challenger St Brieuc | 2018/03/27 09:00 | Mohamed Safwat v Zdenek Kolar | 4-6,7-5,5-7 |