Stadium: V5 Round: 44 Ground: Hardcourt outdoor
| ITF M25 Claremont | 2019/10/06 18:00 | Kyle Overmyer v Kyle Kang | 7-6,3-6,5-10 |
| ITF M25 Harlingen | 2019/09/22 15:00 | Kyle Overmyer v Leighton Allen | 0-6,1-6 |
| ITF M25 Houston | 2019/09/15 14:00 | Kyle Overmyer v Eduardo N Irizarry | 3-6,3-6 |
| 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 Brussels | 2019/07/30 08:00 | Alexis Boureau v Colin Markes | 6-1,6-2 |
| ITF M15 Brussels | 2019/07/29 09:20 | David Tixhon v Colin Markes | 3-6,6-3,5-10 |
| ITF M25 Troyes | 2019/07/22 07:00 | Colin Markes v Mayeul Darras | 3-6,7-6,3-10 |
| ITF M25 Kassel | 2019/07/16 08:00 | Mats Rosenkranz v Colin Markes | 4-6,6-2,10-8 |
| ITF M15 Rochester | 2019/06/25 18:20 | Colin Markes v Kyle Seelig | 2-6,1-6 |