Stadium: Court 10 Round: 166 Ground: Hardcourt outdoor
| Challenger Pune | 2018/11/20 09:50 | Collin Altamirano v Lucas Gerch | 3-6,1-6 |
| Challenger Bangalore | 2018/11/13 05:30 | Collin Altamirano v Mukund Sasikumar | 6-7,3-6 |
| Challenger Charlottesville | 2018/10/30 22:10 | Marcos Giron v Collin Altamirano | 6-4,6-4 |
| Challenger Calgary | 2018/10/18 01:20 | Collin Altamirano v Filip Peliwo | 7-5,6-7,1-6 |
| Challenger Calgary | 2018/10/15 18:40 | Jay Clarke v Collin Altamirano | 5-7,0-6 |
| Challenger Fairfield | 2018/10/10 22:20 | Alex Bolt v Collin Altamirano | 7-6,6-7,7-6 |
| Challenger Stockton | 2018/09/29 22:20 | Collin Altamirano v Isaiah Strode | 4-6,0-6 |
| US Open | 2018/08/27 16:30 | Collin Altamirano v Ugo Humbert | 3-6,6-7,3-6 |
| Challenger Da Nang | 2019/01/08 07:45 | Alafia Ayeni v Carlos Boluda-Purkiss | 1-6,7-6,0-6 |
| Challenger Da Nang | 2019/01/07 04:25 | Sonchat Ratiwatana v Alafia Ayeni | 4-6,6-7 |
| Challenger Da Nang | 2019/01/06 03:30 | Alafia Ayeni v Kaito Uesugi | 6-7,6-2,3-6 |
| Challenger Champaign | 2018/11/14 16:00 | Alafia Ayeni v Sekou Bangoura | 7-6,2-6,3-6 |
| Challenger Champaign | 2018/11/13 18:00 | Ruan Roelofse v Alafia Ayeni | 3-6,4-6 |
| Challenger Champaign | 2018/11/12 16:00 | Ryan Shane v Alafia Ayeni | 4-6,6-1,6-4 |
| Challenger Champaign | 2018/11/11 16:00 | Gui Gomes v Alafia Ayeni | 3-6,2-6 |
| ITF Nigeria F5 | 2018/10/09 10:30 | Alafia Ayeni v Tyler Lu | 4-6,2-6 |