| ITF - M15 Weston | 2021/07/04 15:00 | Gonzalo Villanueva v Liam Draxl | 4-6,6-3,3-6 |
| ITF - M15 Weston | 2021/07/03 14:00 | Cannon Kingsley v Gonzalo Villanueva | 4-6,7-6,2-6 |
| ITF - M15 Weston | 2021/07/02 19:15 | Axel Nefve v Gonzalo Villanueva | 6-2,1-6,8-10 |
| ITF - M15 Weston | 2021/07/01 21:10 | Kyle Seelig v Gonzalo Villanueva | 6-3,6-7,6-7 |
| ITF - M15 Weston | 2021/07/01 15:25 | Kyle Seelig v Gonzalo Villanueva | 6-3,6-7,6-7 |
| ITF - M15 Champaign | 2021/06/23 17:15 | Gonzalo Villanueva v Kweisi Kenyatte | 6-3,6-7,4-6 |
| ITF - M25 Tulsa | 2021/06/17 13:55 | Gonzalo Villanueva v Gage Brymer | 4-6,3-6 |
| ITF - M25 Tulsa | 2021/06/16 16:30 | Adrian Andreev v Gonzalo Villanueva | 6-2,3-6,4-6 |
| UTR Pro Tennis Series - Atlanta | 2021/07/04 13:30 | Jake Krug v Harvey Maughan | 6-2,1-0 |
| UTR Pro Tennis Series - Atlanta | 2021/04/10 14:00 | Ronan Jachuck v Jake Krug | 3-6,6-4,6-3 |
| UTR Pro Tennis Series - Atlanta | 2021/04/09 12:30 | Jake Krug v Matthew Segura | 4-6,3-6 |
| UTR Pro Tennis Series - Atlanta | 2021/04/07 12:30 | Jake Krug v William Griffith | 6-3,7-5 |
| UTR Pro Tennis Series - Atlanta | 2021/04/06 15:30 | Jake Krug v Gavin Young | 2-6,0-6 |
| UTR Pro Tennis Series - Atlanta | 2021/04/05 12:30 | Loren Byers v Jake Krug | 6-2,3-6,2-6 |