Round: 28 Ground: Hardcourt outdoor
| Challenger Las Vegas | 2015/10/23 18:00 | Austin Krajicek v Dennis Novikov | 6-7,6-3,6-7 |
| Challenger Las Vegas | 2015/10/21 19:55 | Daniel Evans v Dennis Novikov | 4-6,6-7 |
| Challenger Las Vegas | 2015/10/19 19:45 | Evan Song v Dennis Novikov | 4-6,4-6 |
| Challenger Columbus | 2015/09/27 15:00 | Ryan Harrison v Dennis Novikov | 4-6,6-3,3-6 |
| Challenger Columbus | 2015/09/23 20:00 | Dennis Novikov v Marcelo Arevalo | 7-6,6-7,6-2 |
| Challenger Columbus | 2015/09/22 15:30 | Dennis Novikov v Stefan Kozlov | 7-6,7-6 |
| US Open Qual | 2015/08/27 15:00 | Dennis Novikov v Matthew Ebden | 3-6,7-6,2-6 |
| US Open Qual | 2015/08/25 17:10 | Gastao Elias v Dennis Novikov | 7-6,3-6,4-6 |
| Challenger Las Vegas | 2015/10/23 20:00 | Grega Zemlja v Blaz Rola | 6-2,3-6,6-3 |
| Challenger Las Vegas | 2015/10/22 19:35 | Grega Zemlja v Taylor Fritz | 6-7,6-2,6-2 |
| Challenger Las Vegas | 2015/10/20 18:55 | Dustin Brown v Grega Zemlja | 6-7,6-1,3-6 |
| Challenger Fairfield | 2015/10/13 17:00 | Liam Broady v Grega Zemlja | 6-4,6-1 |
| Challenger Manerbio | 2015/08/25 10:30 | Frederico Ferreira Silva v Grega Zemlja | 7-6,6-3 |
| Challenger Manerbio Qual | 2015/08/23 15:05 | Grega Zemlja v Tristan-Samuel Weissborn | 6-1,6-4 |
| Davis Cup | 2015/07/17 11:20 | Amir Weintraub v Grega Zemlja | 6-3,6-2,1-6,6-7,6-4 |
| ATP Stuttgart Qual | 2015/06/07 10:55 | Mischa Zverev v Grega Zemlja | 7-6,6-1 |