| ITF M15 Austin | 2019/11/20 19:20 | Colin Markes v Tyler Zink | 6-7,6-7 |
| ITF M15 Austin | 2019/11/19 16:00 | Colin Markes v Eric Morris | 6-3,6-3 |
| ITF M15 Austin | 2019/11/18 16:00 | Colin Markes v Eduardo N Irizarry | 6-4,6-1 |
| ITF M25 Fort Worth | 2019/10/21 15:00 | Colin Markes v Alfredo Perez | 4-6,0-6 |
| ITF M25 Fort Worth | 2019/10/20 15:00 | Kyle Overmyer v Colin Markes | 1-6,0-6 |
| ITF M25 Norman | 2019/09/30 15:00 | Alexander Cozbinov v Colin Markes | 7-5,7-5 |
| ITF M25 Norman | 2019/09/29 15:00 | Colin Markes v Hunter Heck | 7-6,6-4 |
| ITF M25 Chiswick | 2019/08/05 10:55 | Brandon Murphy v Colin Markes | 6-4,6-2 |
| ITF M15 Cancun | 2019/09/17 17:55 | Ryuhei Azuma v Adam El Mihdawy | 1-6,1-6 |
| ITF M15 Cancun | 2019/09/11 14:00 | Juan Sebastian Gomez v Ryuhei Azuma | 6-4,7-5 |
| ITF Japan F8 | 2018/06/11 00:30 | Masaya Kobayashi v Ryuhei Azuma | 6-0,7-5 |
| ITF Japan F6 Qual | 2018/04/08 01:00 | Ryuhei Azuma v Yuto Sakai | 2-6,2-6 |
| ITF Japan F2 | 2018/03/10 02:30 | Tomohiro Masabayashi v Ryuhei Azuma | 6-4,6-3 |
| ITF Japan F1 | 2018/03/04 01:00 | Naru Shirafuji v Ryuhei Azuma | 6-2,6-2 |