| Challenger Tallahassee | 2023/04/17 15:50 | Martin Damm v Colin Markes | 6-4,6-3 |
| ITF M15 Sunrise | 2023/04/11 21:00 | Aidan Kim v Colin Markes | 6-3,7-6 |
| Challenger San Luis Potosi | 2023/04/02 22:35 | Colin Markes v Ajeet Rai | 6-4,3-6,0-6 |
| ITF M25 Calabasas | 2023/03/23 18:00 | Alex Michelsen v Colin Markes | 6-3,6-2 |
| ITF M25 Bakersfield | 2023/03/16 20:15 | Colin Markes v Naoki Nakagawa | 2-6,2-6 |
| ITF M25 Bakersfield | 2023/03/16 01:30 | Miles Jones v Colin Markes | 6-4,5-7,3-6 |
| ITF M15 Monastir | 2023/02/11 10:30 | Nicolas Tepmahc v Colin Markes | 6-3,6-3 |
| ITF M15 Monastir | 2023/02/07 12:30 | Stefanos Sakellaridis v Colin Markes | 5-7,6-2,6-7 |
| UTR Pro Tennis Series California | 2021/07/30 16:30 | Ewen Lumsden v Alexey Nesterov | 1-6,7-6,7-5 |
| UTR Pro Tennis Series California | 2021/07/28 18:00 | Alexey Nesterov v John B D Otico | 6-2,5-1 |
| UTR Pro Tennis Series California | 2021/07/27 16:30 | Alexey Nesterov v Aditya Gupta | 7-6,6-1 |
| UTR Pro Tennis Series California | 2021/07/26 16:30 | Ethan Quinn v Alexey Nesterov | 6-7,7-5,6-2 |
| UTR Pro Tennis Series California | 2021/07/24 15:00 | Alexey Nesterov v Welsh Hotard | 6-1,5-1 |
| UTR Pro Tennis Series California | 2021/07/22 16:30 | Luke Vandecasteele v Alexey Nesterov | 6-4,4-6,0-5 |
| UTR Pro Tennis Series California | 2021/07/21 16:30 | Alexey Nesterov v Aryan Chaudhary | 6-1,0-0 |
| UTR Pro Tennis Series California | 2021/07/20 15:00 | Alexey Nesterov v Colton Smith | 6-4,3-6,0-6 |