| UTR Pro Tennis Series Atlanta | 2021/07/08 14:30 | Alan Sau Franco v Jake Krug | 6-4,5-2 |
| UTR Pro Tennis Series Atlanta | 2021/07/07 13:00 | Maxwell Benson v Jake Krug | 6-4,6-1 |
| UTR Pro Tennis Series Atlanta | 2021/07/06 12:00 | Samuel Rubell v Jake Krug | 2-6,3-5 |
| UTR Pro Tennis Series Atlanta | 2021/07/05 16:30 | Gonzalo Villanueva v Jake Krug | 6-4,5-4 |
| 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 |
| ITF M15 Champaign | 2021/06/21 15:00 | Matt Kuhar v Noah Schachter | 2-6,7-5,10-12 |
| ITF M25 Wichita | 2021/06/09 14:50 | Dane Sweeny v Matt Kuhar | 6-3,0-6,6-4 |
| ITF M25 Wichita | 2021/06/08 15:00 | Joshua Peck v Matt Kuhar | 5-7,2-6 |
| ITF M25 Wichita | 2021/06/07 15:00 | Matt Kuhar v Joshua Sheehy | 6-4,7-6 |
| UTR Pro Tennis Series Florida | 2021/01/20 18:00 | Matt Kuhar v Cristian C. Rodriguez Sanchez | 3-6,2-6 |
| UTR Pro Tennis Series Florida | 2021/01/19 14:00 | Matt Kuhar v Aditya Vashistha | 2-6,4-5 |
| UTR Pro Tennis Series Florida | 2021/01/18 18:30 | Nick Chappell v Matt Kuhar | 6-0,5-2 |
| UTR Pro Tennis Series Florida | 2021/01/17 14:00 | Matt Kuhar v Fletcher Scott | 6-1,4-6,6-1 |