Stadium: Court 2 Round: 26 Ground: Clay
| UTR Pro Tennis Series Dallas | 2021/08/30 16:00 | Jacob Brumm v Colin Markes | 1-6,5-7 |
| ITF M15 Vero Beach | 2023/04/26 14:00 | Jacob Brumm v Yi Zhou | 6-1,6-0 |
| ITF M15 Tacarigua | 2023/04/18 20:00 | Jacob Brumm v Tauheed Browning | 4-6,2-6 |
| ITF M15 Sunrise | 2023/04/13 17:40 | Jacob Brumm v Aidan Kim | 5-7,5-7 |
| ITF M15 Sunrise | 2023/04/13 13:00 | Jacob Brumm v Elio Jose Ribeiro Lago | 6-4,6-0 |
| ITF M25 Calabasas | 2023/03/23 17:00 | Lucas Renard v Jacob Brumm | 6-4,3-6,11-13 |
| ITF M25 Calabasas | 2023/03/23 17:00 | Jacob Brumm v Aidan Mayo | 4-6,4-6 |
| ITF M25 Calabasas | 2023/03/20 18:00 | Elijah Strode v Jacob Brumm | 2-6,2-6 |
| ITF M25 Montreal | 2023/03/07 19:45 | Jules Marie v Jacob Brumm | 6-3,6-2 |
| 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 |