Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Lubbock | 2021/09/29 15:00 | 쿠마르, 옴니 v Kissell, Chad | 7-5,7-5 |
| ITF M15 Fayetteville | 2021/09/22 17:15 | 쿠마르, 옴니 v 파텐, 헨리 | 7-6,4-6,2-6 |
| ITF M15 Champaign | 2021/09/17 15:00 | 맥날리, 존 v 쿠마르, 옴니 | 5-7,6-4,6-2 |
| ITF M15 Champaign | 2021/09/16 20:00 | Olivier Stuart v 쿠마르, 옴니 | 2-6,2-6 |
| ITF M15 Champaign | 2021/09/15 17:00 | 헤크, 헌터 v 쿠마르, 옴니 | 6-1,6-7,1-6 |
| ITF M15 Monastir | 2021/09/02 08:00 | 쿠마르, 옴니 v 하비브, 하디 | 6-4,5-7,2-6 |
| ITF M15 Monastir | 2021/09/01 09:30 | 쿠마르, 옴니 v 사이토, 케스크 | 6-4,6-2 |
| ITF M15 Monastir | 2021/08/25 09:00 | 코르윈, 펠릭스 v 쿠마르, 옴니 | 6-7,6-4,6-1 |
| ITF M15 Lubbock | 2021/09/29 16:30 | Arevalo, Isaac Arturo v Ryan Colby | 6-1,6-7,6-2 |
| ITF M15 Lubbock | 2021/09/27 15:00 | 베이커, 블루 v Arevalo, Isaac Arturo | 2-6,3-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/15 15:30 | Arevalo, Isaac Arturo v Delgado, Alonso Alejandro | 6-3,6-1 |
| UTR Pro Tennis Series Manzanillo | 2021/08/14 13:00 | Arevalo, Isaac Arturo v Nathan Oppenheim | 0-0 |
| UTR Pro Tennis Series Manzanillo | 2021/08/12 16:00 | Arevalo, Isaac Arturo v 카르펜터, 케빈 자크 | 6-2,2-6,4-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/11 14:00 | Arevalo, Isaac Arturo v Edson A S Elizondo | 6-3,1-6,2-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/10 13:00 | Arevalo, Isaac Arturo v Bruno Rodriguez | 6-4,4-6,0-6 |
| UTR Pro Tennis Series Manzanillo | 2021/08/09 13:00 | Arevalo, Isaac Arturo v 파티노, 루이스 | 1-6,1-6 |