Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| Challenger Las Vegas MD | 2021/10/27 21:00 | Lammons/Withrow v Sandgren/Torpegaard | 7-6,7-5 |
| US Open MD | 2021/09/03 15:00 | Lammons/Withrow v Berankis/Paire | 4-6,2-6 |
| US Open MD | 2021/09/02 20:30 | Mektic/Pavic v Lammons/Withrow | 2-6,5-7 |
| ATP Atlanta MD | 2021/07/27 15:00 | Johnson/Thompson v Lammons/Withrow | 6-4,7-5 |
| ATP Los Cabos MD | 2021/07/20 01:35 | McDonald/Querrey v Lammons/Withrow | 6-1,6-4 |
| ATP Newport MD | 2021/07/14 16:50 | Lammons/Withrow v Heliovaara/Smith | 4-6,7-6,7-10 |
| Wimbledon MD | 2021/07/01 13:25 | Lammons/Withrow v Kubot/Melo | 4-6,7-5,4-6 |
| Challenger Nottingham MD | 2021/06/16 16:05 | Soeda/Zhang v Lammons/Withrow | 7-5,2-6,13-11 |
| Challenger Las Vegas MD | 2021/10/27 21:15 | Vance/Vance v Mmoh/Novikov | 4-6,4-6 |