Stadium: Court 4 Round: 25
| Challenger Stockton | 2018/10/01 17:00 | Harri Heliovaara v Alexander Sarkissian | 6-4,4-6,4-6 |
| Challenger Stockton | 2018/09/30 20:35 | Henry Craig v Alexander Sarkissian | 2-6,2-6 |
| Challenger Stockton | 2018/09/29 18:50 | Sebastian Fanselow v Alexander Sarkissian | 6-7,3-6 |
| Challenger Tiburon | 2018/09/25 21:15 | Alexander Sarkissian v James Duckworth | 6-7,4-6 |
| Challenger Tiburon | 2018/09/24 18:55 | Alexander Sarkissian v Pablo Vivero Gonzalez | 6-3,6-7,6-2 |
| Challenger Tiburon | 2018/09/23 19:20 | Mitchell Krueger v Alexander Sarkissian | 2-6,4-6 |
| Challenger Tiburon | 2018/09/22 18:15 | Frederik Nielsen v Alexander Sarkissian | 4-6,5-7 |
| Challenger Cary | 2018/09/10 18:00 | Alexander Sarkissian v Joris De Loore | 4-6,4-6 |
| Challenger Tiburon | 2018/09/25 20:40 | Mikael Torpegaard v Maverick Banes | 6-4,6-2 |
| Challenger Columbus | 2018/09/17 18:10 | Maverick Banes v Mikael Torpegaard | 6-7,4-6 |
| Challenger Cary | 2018/09/10 19:25 | Maverick Banes v Evan King | 2-6,6-1,3-6 |
| Challenger Gwangju | 2018/08/19 01:55 | Maverick Banes v Ji Sung Nam | 6-3,4-6,6-4 |
| Challenger Gwangju | 2018/08/18 03:55 | Maverick Banes v Makoto Ochi | 6-4,6-4 |
| Challenger Gwangju | 2018/08/17 02:55 | Alexei Popyrin v Maverick Banes | 4-6,3-6 |
| Challenger Gwangju | 2018/08/16 01:00 | Sidharth Rawat v Maverick Banes | 3-6,3-6 |
| Challenger Gwangju | 2018/08/14 09:20 | Dong-Hak Sin v Maverick Banes | 2-6,1-6 |