| UTR Pro Tennis Series Atlanta | 2021/04/16 15:00 | Daniel Milavsky v Harris Walker | 2-6,4-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/15 17:00 | Meister, Nicolas v Harris Walker | 1-6,2-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/14 14:30 | 브룸, 야콥 v Harris Walker | 2-6,2-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/12 14:00 | Cassone, Murphy v Harris Walker | 1-6,3-6 |
| UTR Pro Tennis Series Florida | 2021/03/14 14:30 | Harris Walker v 쉬히, 조수아 | 7-6,5-4 |
| UTR Pro Tennis Series Florida | 2021/03/13 15:30 | Harris Walker v 세구라, 마튜 | 6-3,6-3 |
| UTR Pro Tennis Series Florida | 2021/03/12 18:30 | Harris Walker v Raphael Termat | 7-6,6-3 |
| UTR Pro Tennis Series Florida | 2021/03/11 17:50 | Harris Walker v Michael Zheng | 4-6,6-7 |
| UTR Pro Tennis Series Atlanta | 2021/04/16 15:30 | Valentino Raul Caratini v 벨트란, 페터 | 1-6,6-4,0-2 |
| UTR Pro Tennis Series Atlanta | 2021/04/15 17:00 | Gurmendi, Alexis v 벨트란, 페터 | 6-1,0-6,3-5 |
| UTR Pro Tennis Series Atlanta | 2021/04/13 12:30 | Alex Cairo v 벨트란, 페터 | 3-6,2-5 |
| UTR Pro Tennis Series Atlanta | 2021/04/12 15:30 | 벨트란, 페터 v Luke Casper | 7-6,3-6,4-6 |
| ITF M15 Opatija | 2021/03/23 10:50 | 벨트란, 페터 v 마에스트렐리, 프란세스코 | 0-6,3-6 |
| ITF M15 Opatija | 2021/03/22 11:20 | 벨트란, 페터 v Dimic, Matic | 3-6,6-2,11-9 |
| ITF M15 Opatija | 2021/03/21 08:00 | 벨트란, 페터 v 프로코피오, 알레산드로 | 6-3,6-1 |
| ITF M15 Rovinj | 2021/03/15 13:15 | 모라, 맥심 v 벨트란, 페터 | 6-4,5-7,10-8 |