Round: 28 Ground: Clay
| ITF Italy F21 | 2015/08/06 12:30 | Bortolotti, Marco v Rondoni, Pietro | 6-3,6-3 |
| ITF Italy F21 | 2015/08/05 11:30 | Prader, Patrick v Bortolotti, Marco | 1-6,6-3,2-6 |
| ITF Italy F21 | 2015/08/04 11:35 | Prechtel, Sebastian v Bortolotti, Marco | 0-6,3-6 |
| Challenger Biella | 2015/07/28 15:05 | Bortolotti, Marco v Bellotti, Riccardo | 6-4,6-7,0-6 |
| Challenger Biella Qual | 2015/07/27 12:15 | Velotti, Agustin v Bortolotti, Marco | 3-6,2-6 |
| ITF Austria F3 | 2015/07/11 09:00 | Bortolotti, Marco v Hampel, Lenny | 7-5,7-6 |
| ITF Austria F3 | 2015/07/10 10:30 | Bortolotti, Marco v Ghedin, Nicola | 6-4,6-3 |
| ITF Austria F3 | 2015/07/08 09:00 | Giraldi Requena, Marcos v Bortolotti, Marco | 3-6,3-6 |
| ITF Italy F21 | 2015/08/06 14:10 | Collin Altamirano v Giacalone, Omar | 2-6,6-4,6-2 |
| ITF Italy F21 | 2015/08/05 09:55 | Collin Altamirano v Daniel Masur | 6-2,6-2 |
| ITF Italy F21 | 2015/08/04 12:35 | Maximilian Marterer v Collin Altamirano | 5-7,4-6 |
| ITF Italy F20 | 2015/07/27 12:00 | Collin Altamirano v Mercuri, Fabio | 6-7,7-6,1-6 |
| ITF Italy F17 | 2015/07/07 15:00 | Collin Altamirano v Stefano Travaglia | 2-6,6-7 |
| US Open, New York, USA, Qualifying | 2014/08/21 23:00 | Ricardas Berankis v Collin Altamirano | 2-6,6-1,6-1 |
| US Open, New York, USA, Qualifying | 2014/08/20 15:00 | Vanni, Luca v Collin Altamirano | 4-6,2-6 |
| ITF USA F19 Qual | 2014/06/30 15:00 | Collin Altamirano v Dias, Francisco | 7-6,6-3 |