Stadium: C Round: 46
| ITF USA F2 | 2017/01/13 21:05 | Logan Smith v Collin Altamirano | 6-7,3-6 |
| Challenger Winnetka Qual | 2018/07/07 15:00 | Paul Oosterbaan v Logan Smith | 1-6,5-7 |
| ITF USA F19 | 2018/07/04 17:40 | Matic Spec v Logan Smith | 7-6,0-6,6-3 |
| ITF USA F17 | 2018/06/27 16:40 | Logan Smith v Harrison Adams | 3-6,3-6 |
| ITF USA F17 Qual | 2018/06/26 15:00 | Logan Smith v Joshua Sheehy | 7-6,7-5 |
| ITF USA F17 Qual | 2018/06/24 18:30 | Logan Smith v Conner McMann | 6-3,6-2 |
| ITF USA F2 | 2018/01/11 21:05 | Logan Smith v JC Aragone | 2-6,4-6 |
| ITF USA F2 | 2018/01/11 01:15 | Jenson Brooksby v Logan Smith | 2-6,7-6,0-6 |
| ITF USA F2 Qual | 2018/01/10 18:00 | Logan Smith v Matthew Tsolakyan | 7-6,6-3 |
| Challenger Winnetka Qual | 2018/07/07 15:00 | Sam Riffice v Collin Altamirano | 6-7,6-3,4-6 |
| ITF USA F19 | 2018/07/05 17:30 | Collin Altamirano v Reese Stalder | 3-6,1-6 |
| ITF USA F19 | 2018/07/04 14:00 | Collin Altamirano v Samuel Beren | 6-2,6-3 |
| ITF USA F17 | 2018/06/26 19:00 | Collin Altamirano v Jeffrey John Wolf | 4-6,5-7 |
| ITF Singapore F2 | 2018/05/26 03:00 | Takuto Niki v Collin Altamirano | 6-7,3-6 |
| ITF Singapore F2 | 2018/05/25 03:00 | Kazuki Nishiwaki v Collin Altamirano | 7-5,2-6,3-6 |
| ITF Singapore F2 | 2018/05/24 03:00 | Collin Altamirano v Shintaro Imai | 6-2,6-2 |
| ITF Singapore F2 | 2018/05/23 02:00 | Collin Altamirano v Karunuday Singh | 6-2,6-3 |