Stadium: Clay Court 6 Round: 25 Ground: Hardcourt outdoor
| 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 Turkey F43 | 2017/11/15 06:45 | Sefa Suluoglu v Jordi Samper-Montana | 1-6,1-6 |
| ITF Turkey F42 | 2017/11/07 07:15 | Diego Hidalgo v Sefa Suluoglu | 6-2,6-0 |
| ITF Turkey F41 | 2017/10/30 06:45 | Sefa Suluoglu v Moritz Trocker | 3-6,2-6 |
| ITF Turkey F40 | 2017/10/21 09:00 | Sergei Lysov v Sefa Suluoglu | 6-2,6-4 |
| ITF Turkey F39 | 2017/10/14 07:00 | Daniil Klimov v Sefa Suluoglu | 6-0,6-3 |
| ITF Turkey F38 | 2017/10/11 07:30 | Sefa Suluoglu v Vlad Andrei Dumitru | 0-6,1-6 |
| Challenger Izmir Qual | 2017/09/17 10:40 | Marc Sieber v Sefa Suluoglu | 6-0,6-3 |
| Challenger Izmir Qual | 2017/09/16 08:00 | Sefa Suluoglu v Alexander Zhurbin | 6-2,6-3 |