| UTR Pro Tennis Series - Florida | 2021/09/15 15:00 | Joseph Phillips v Charles Sullivan | 6-7,4-5 |
| UTR Pro Tennis Series - Florida | 2021/09/14 15:00 | Timothy Phung v Charles Sullivan | 4-6,6-3,6-6 |
| UTR Pro Tennis Series Cancún | 2021/04/03 17:00 | Mateo Gomez v Charles Sullivan | 3-2 |
| UTR Pro Tennis Series Cancún | 2021/04/01 18:30 | Charles Sullivan v Juan A H Serrano | 6-7,4-5 |
| UTR Pro Tennis Series Cancún | 2021/03/31 19:00 | Charles Sullivan v Zachery Foster | 6-1,3-6,6-6 |
| UTR Pro Tennis Series Cancún | 2021/03/30 13:00 | Charles Sullivan v Dusty H. Boyer | 5-7,5-7 |
| UTR Pro Tennis Series Cancún | 2021/03/29 16:30 | Charles Sullivan v Gabriel Evans | 6-4,5-2 |
| UTR Pro Tennis Series - Florida | 2021/03/11 22:00 | Charles Sullivan v Kiranpal Pannu | 3-6,1-6 |
| UTR Pro Tennis Series - Florida | 2021/09/14 12:00 | Joseph Phillips v Yaron Guberman | 6-2,5-2 |
| UTR Pro Tennis Series - Florida | 2021/09/13 16:30 | Yaron Guberman v Jorge Cavero | 6-4,0-6,1-5 |
| ITF M15 Heráklion | 2021/06/09 13:00 | Yaron Guberman v Martin Breysach | 3-6,1-6 |
| ITF M15 Heráklion | 2021/06/08 08:00 | Matteo De Vincentis v Yaron Guberman | 4-6,5-7 |
| ITF M15 Heráklion | 2021/06/07 07:30 | Matthew Dellavedova v Yaron Guberman | 4-6,4-6 |
| ITF M15 Heráklion | 2021/06/06 09:00 | Yaron Guberman v Patrick Foley | 7-5,6-3 |
| ITF M15 Heráklion | 2021/05/23 08:00 | Daniel Cox v Yaron Guberman | 6-1,6-1 |
| ITF M15 Jeruzalém | 2021/05/09 06:30 | Joshua Paris v Yaron Guberman | 6-4,6-3 |