Round: 62 Ground: Hardcourt outdoor
| Challenger Milan | 2015/06/23 10:55 | Mate Delic v Federico Gaio | 1-6,3-6 |
| Challenger Caltanissetta | 2015/06/09 17:20 | Mate Delic v Andrea Arnaboldi | 6-7,1-6 |
| Challenger Mestre | 2015/06/02 11:00 | Gastao Elias v Mate Delic | 6-4,7-5 |
| Challenger Rome | 2015/05/06 11:00 | Mate Delic v Dustin Brown | 2-6,4-6 |
| Challenger Rome | 2015/05/04 13:05 | Andrea Arnaboldi v Mate Delic | 6-7,3-6 |
| Challenger Ostrava | 2015/04/30 12:00 | Jozef Kovalik v Mate Delic | 6-2,7-5 |
| Challenger Ostrava | 2015/04/27 15:55 | David Poljak v Mate Delic | 2-6,4-6 |
| ATP Miami Qual | 2015/03/23 18:05 | Mate Delic v Luca Vanni | 7-6,7-6 |