Round: 62 Ground: Hardcourt indoor
| ITF Canada F9 Qual | 2015/09/07 18:55 | Tennys Sandgren v Nick Chappell | 7-5,6-3 |
| ITF Canada F9 Qual | 2015/09/06 15:30 | Nick Chappell v Egor Koleganov | 6-2,4-6,6-4 |
| ITF USA F25 Qual | 2015/08/09 14:00 | Nick Chappell v Tim Kopinski | 6-7,6-4,3-6 |
| ITF USA F24 | 2015/08/05 15:00 | Nick Chappell v Tom Jomby | 2-6,3-6 |
| ITF USA F24 Qual | 2015/08/03 15:00 | Alan Kohen v Nick Chappell | 2-6,2-6 |
| ITF USA F24 Qual | 2015/08/02 14:00 | Jose Maria Martin de Oliva Carr v Nick Chappell | 4-6,3-6 |
| ITF USA F23 | 2015/07/30 15:30 | Nick Chappell v Clay Thompson | 2-6,3-6 |
| ITF USA F23 | 2015/07/29 13:30 | Myles Schalet v Nick Chappell | 2-6,3-6 |
| ITF Ireland F1 | 2015/07/21 13:45 | Alexander Jhun v Mark Oljaca | 6-2,6-4 |
| ITF Ireland F1 Qual | 2015/07/20 11:05 | Andrew Ponder v Mark Oljaca | 4-6,2-6 |
| ITF Guam F1 | 2015/05/26 02:55 | Kelsey Stevenson v Mark Oljaca | 6-4,6-1 |
| ITF Guam F1 | 2015/05/24 01:00 | Jack Pulliam v Mark Oljaca | 3-6,2-6 |
| ITF Greece F2 Qual | 2015/03/29 08:30 | Mark Oljaca v Antoine Bellier | 3-6,7-6,2-6 |
| ITF Greece F1 | 2015/03/21 08:00 | Alessandro Bega v Mark Oljaca | 6-3,6-0 |
| ITF USA F1 Qual | 2015/01/03 20:00 | Mark Oljaca v Neven Krivokuca | 2-6,1-6 |
| ITF Canada F9 Qual | 2014/08/30 17:00 | Winston Lin v Mark Oljaca | 6-4,6-2 |