Round: 62 Ground: Clay
| Challenger Fairfield Qual | 2017/10/07 20:00 | John Lamble v Collin Altamirano | 6-0,7-5 |
| Challenger Stockton Qual | 2017/10/01 19:30 | Collin Altamirano v Ruan Roelofse | 7-5,4-6,0-6 |
| Challenger Stockton Qual | 2017/09/30 20:00 | Tadiwa Chinamo v Collin Altamirano | 6-4,2-6,0-6 |
| ITF USA F32 | 2017/09/26 20:20 | Brandon Holt v Collin Altamirano | 6-2,6-1 |
| ITF USA F31 | 2017/09/23 18:15 | Henry Craig v Collin Altamirano | 6-4,6-4 |
| ITF USA F31 | 2017/09/22 19:20 | Collin Altamirano v Tom Fawcett | 6-1,6-2 |
| ITF USA F31 | 2017/09/21 22:05 | Gianni Ross v Collin Altamirano | 6-7,3-6 |
| ITF USA F31 | 2017/09/20 17:00 | Collin Altamirano v Raleigh Smith | 6-1,6-2 |
| ITF USA F30 | 2017/09/08 21:30 | Maximilian Kaiser v Mateusz Smolicki | 3-6,6-3,6-2 |
| ITF Poland F3 Qual | 2017/06/26 11:00 | Boris Arias v Mateusz Smolicki | 3-6,7-5,6-3 |
| ITF Poland F3 Qual | 2017/06/25 10:30 | Dariusz Lipka v Mateusz Smolicki | 4-6,4-6 |
| ITF Poland F2 | 2017/06/20 12:30 | Mateusz Smolicki v Daniel Michalski | 7-5,3-6,5-7 |
| ITF Nigeria F3 Qual | 2017/05/14 10:10 | Mateusz Smolicki v Hugo Largo | 4-6,5-7 |
| ITF Nigeria F2 | 2017/05/10 12:20 | Mateusz Smolicki v Mukund Sasikumar | 1-6,1-6 |
| ITF Nigeria F2 | 2017/05/09 09:00 | Clifford Enosoregbe v Mateusz Smolicki | 6-7,6-7 |
| ITF Nigeria F1 | 2017/05/02 09:00 | Mateusz Smolicki v Viktor Durasovic | 6-7,7-5,4-6 |