| UTR Pro Tennis Series Atlanta | 2021/07/15 18:00 | William Mroz Mroz v Gonzalo Villanueva | 3-6,4-5 |
| UTR Pro Tennis Series Atlanta | 2021/07/14 19:30 | William Mroz Mroz v Shubladze, Vazha | 6-2,5-1 |
| UTR Pro Tennis Series Atlanta | 2021/07/11 20:45 | Yatsuk, Ivan v William Mroz Mroz | 3-6,7-6,4-5 |
| UTR Pro Tennis Series Florida | 2021/06/06 16:00 | Jonah Braswell v William Mroz Mroz | 4-6,6-2,6-6 |
| UTR Pro Tennis Series Florida | 2021/06/05 18:00 | Top Nidunjianzan v William Mroz Mroz | 2-6,4-5 |
| UTR Pro Tennis Series Florida | 2021/06/04 13:30 | Keshav Chopra v William Mroz Mroz | 6-7,6-2,7-6 |
| UTR Pro Tennis Series Florida | 2021/06/03 14:30 | Joao Ceolin v William Mroz Mroz | 6-3,6-3 |
| UTR Pro Tennis Series Florida | 2021/06/01 16:00 | Jake Beasley v William Mroz Mroz | 6-3,6-6 |
| UTR Pro Tennis Series Atlanta | 2021/07/15 15:00 | Dong, Chen v Panta Herreros, Jorge Brian | 6-2,6-1 |
| UTR Pro Tennis Series Atlanta | 2021/07/13 16:00 | Dong, Chen v Peter Murphy | 6-7,3-6 |
| UTR Pro Tennis Series Atlanta | 2021/07/11 14:30 | Brandon Mckinney v Dong, Chen | 2-6,3-6 |
| UTR Pro Tennis Series Florida | 2021/06/13 12:00 | Dong, Chen v Cavero, Jorge | 3-6,4-5 |
| UTR Pro Tennis Series Florida | 2021/06/12 16:30 | Dong, Chen v Pessoa, Bruno | 6-2,6-1 |
| UTR Pro Tennis Series Florida | 2021/06/10 17:30 | Dong, Chen v Chase Ferguson | 6-3,5-2 |
| UTR Pro Tennis Series Florida | 2021/06/09 17:30 | Dong, Chen v Keshav Chopra | 3-6,6-3,4-6 |
| UTR Pro Tennis Series Florida | 2021/06/08 16:00 | Dong, Chen v Karl Poling | 2-6,5-6 |