Stadium: Court 9 Round: 25 Ground: Hardcourt outdoor
| ITF USA F10 | 2018/04/13 16:20 | Harrison Adams v Collin Altamirano | 4-6,6-3,6-4 |
| ITF M25 - Ithaca | 2024/01/16 18:45 | Karue Sell v Harrison Adams | 6-3,6-4 |
| ITF - M15 Papamoa | 2023/12/21 03:40 | Harrison Adams v Corban Crowther | 6-3,4-6,3-6 |
| ITF - M15 Papamoa | 2023/12/19 21:00 | Harrison Adams v Sam Ryan Ziegann | 6-2,6-1 |
| ITF - M15 Papamoa | 2023/12/18 21:00 | Harrison Adams v James Watt | 6-3,6-7,6-3 |
| ITF - M25 Kalaburagi | 2023/11/30 08:10 | David Pichler v Harrison Adams | 7-6,6-3 |
| ITF - M25 Kalaburagi | 2023/11/29 03:30 | Dev Javia v Harrison Adams | 5-7,1-6 |
| ITF - M25 Mumbai | 2023/11/25 05:00 | Harrison Adams v Siddharth Vishwakarma | 6-7,4-6 |
| ITF - M25 Mumbai | 2023/11/24 04:30 | Evgeny Donskoy v Harrison Adams | 3-6,6-7 |
| ITF - M25 Columbus | 2023/11/16 17:30 | Collin Altamirano v Shunsuke Mitsui | 7-5,3-6,3-6 |
| ITF - M25 Columbus | 2023/11/15 20:30 | Nikita Filin v Collin Altamirano | 6-4,1-6,2-6 |
| Challenger - Calgary | 2023/11/05 17:55 | Alafia Ayeni v Collin Altamirano | 7-6,6-4 |
| ITF - M25 Edmonton | 2023/11/02 16:00 | Giles Hussey v Collin Altamirano | 6-4,6-3 |
| ITF - M25 Edmonton | 2023/10/31 23:25 | Collin Altamirano v Brayden Schnur | 6-4,2-6,6-4 |
| ITF M25 - Harlingen | 2023/10/26 18:50 | Marcus McDaniel v Collin Altamirano | 6-2,6-3 |
| ITF M25 - Harlingen | 2023/10/25 16:05 | Joao Vitor Goncalves Ceolin v Collin Altamirano | 4-6,4-6 |
| ITF - M25 Takasaki | 2023/09/23 01:40 | Makoto Ochi v Collin Altamirano | 6-7,6-1,6-2 |