| Challenger Segovia MD | 07/28 11:20 | 27 | Cozbinov/Istomin v Lock/Lock | 6-4,4-6,6-10 | |
| Challenger Segovia MD | 07/27 15:55 | 26 | Arias/Zeballos v Cozbinov/Istomin | 3-6,3-6 | |
| Challenger Cleveland MD | 02/03 19:40 | 27 | Cozbinov/Istomin v Blumberg/Schnur | 2-6,6-7 | |
| Challenger Cleveland MD | 02/02 00:50 | 26 | Cozbinov/Istomin v Aragone/Schnur | 0-6,7-5,10-8 | |
| Challenger Columbus MD | 02/25 21:10 | 26 | Balaji/Nedunchezhiyan v Cozbinov/Istomin | 6-3,6-4 |