Round: 25 Ground: Hardcourt indoor
| Challenger - Charlottesville | 2015/11/05 00:05 | Henri Laaksonen v Ryan Harrison | 7-5,7-5 |
| Challenger - Charlottesville | 2015/11/02 23:30 | Tennys Sandgren v Ryan Harrison | 5-7,3-6 |
| Challenger - Las Vegas | 2015/10/20 21:00 | Michael Mmoh v Ryan Harrison | 6-2,6-3 |
| Challenger - Fairfield | 2015/10/12 23:30 | Darian King v Ryan Harrison | 6-4,7-5 |
| Challenger - Tiburon | 2015/09/29 20:25 | Ryan Harrison v Deiton Baughman | 6-3,6-3 |
| Challenger - Columbus | 2015/09/27 15:00 | Ryan Harrison v Dennis Novikov | 4-6,6-3,3-6 |
| Challenger - Columbus | 2015/09/26 17:00 | Tim Smyczek v Ryan Harrison | 6-7,7-6,1-6 |
| Challenger - Columbus | 2015/09/25 17:00 | Ryan Harrison v Henri Laaksonen | 6-3,6-3 |
| Challenger - Charlottesville | 2015/11/04 16:00 | Frederik Nielsen v Blaz Kavcic | 6-3,5-7,6-4 |
| Challenger - Las Vegas | 2015/10/24 21:20 | Thiemo De Bakker v Blaz Kavcic | 7-6,4-6,6-4 |
| Challenger - Las Vegas | 2015/10/23 20:25 | Jared Donaldson v Blaz Kavcic | 6-3,5-7,1-6 |
| Challenger - Las Vegas | 2015/10/21 18:00 | Blaz Kavcic v Tim Smyczek | 7-6,6-4 |
| Challenger - Las Vegas | 2015/10/19 21:30 | Philip Bester v Blaz Kavcic | 5-7,0-6 |
| Challenger - Fairfield | 2015/10/16 21:00 | Taylor Fritz v Blaz Kavcic | 6-4,6-1 |
| Challenger - Fairfield | 2015/10/15 19:40 | Jason Jung v Blaz Kavcic | 5-7,3-6 |
| ATP - Umag | 2015/07/23 17:30 | Blaz Kavcic v Roberto Bautista-Agut | 1-6,2-6 |