Stadium: Stadium Round: 28 Ground: Hardcourt indoor
| Challenger Knoxville MD | 2021/11/11 21:30 | Verdugo/Reyes-Varela v Jung/Krueger | 6-3,2-6,12-10 |
| Challenger Knoxville MD | 2021/11/09 22:30 | Verdugo/Reyes-Varela v Hudd/Mitsui | 6-7,7-6,10-6 |
| Challenger Charlottesville MD | 2021/11/03 18:35 | Jung/Rungkat v Verdugo/Reyes-Varela | 7-6,6-3 |
| Challenger Las Vegas MD | 2021/10/29 18:00 | Jung/King v Verdugo/Reyes-Varela | 6-4,3-6,10-6 |
| Challenger Las Vegas MD | 2021/10/28 18:00 | Harrison/Krueger v Verdugo/Reyes-Varela | 5-7,3-6 |
| Challenger Las Vegas MD | 2021/10/27 19:45 | Gonzales/Johnson v Verdugo/Reyes-Varela | 1-6,2-6 |
| Challenger Santiago MD | 2021/10/16 18:50 | Verdugo/Reyes-Varela v King/Schnur | 6-3,6-7,14-16 |
| Challenger Santiago MD | 2021/10/15 16:00 | Barrientos/Romboli v Verdugo/Reyes-Varela | 4-6,4-6 |
| Challenger Knoxville MD | 2021/11/11 22:30 | King/Reese v Sandgren/Torpegaard | 7-6,4-6,14-12 |
| Challenger Knoxville MD | 2021/11/10 22:35 | King/Reese v Marrero/Uchiyama | 7-6,6-4 |
| US Open MD | 2021/09/05 19:05 | King/Reese v Ebden/Purcell | 4-6,4-6 |
| US Open MD | 2021/09/03 18:25 | King/Reese v Inglot/Krajicek | 7-6,6-4 |
| US Open MD | 2021/09/02 21:10 | Kubot/Melo v King/Reese | 6-7,4-6 |
| Challenger Milan MD | 2021/06/23 13:15 | King/Reese v Bonadio/Gabashvili | 6-7,6-7 |
| ATP Halle MD | 2021/06/12 16:10 | King/Reese v Masur/Molleker | 4-6,6-7 |
| Challenger Lyon MD | 2021/06/08 17:30 | Cerundolo/Nagal v King/Reese | 4-6,7-5,17-15 |