Stadium: Center Court Round: 26 Ground: Clay
| Challenger - Rome - Doubles Hommes | 2021/04/30 14:30 | Lammons/Withrow v Andreozzi/Duran | 3-6,4-6 |
| Challenger - Rome - Doubles Hommes | 2021/04/30 10:00 | Lammons/Withrow v Gaston/Lamasine | 4-6,6-1,10-6 |
| Challenger - Rome - Doubles Hommes | 2021/04/28 15:05 | Lammons/Withrow v Napolitano/Vanni | 7-5,6-3 |
| Challenger - Rome - Doubles Hommes | 2021/04/21 16:00 | Lorenzi/Varillas v Lammons/Withrow | 6-3,3-6,10-7 |
| Challenger Belgrade MD | 2021/04/14 15:50 | Begemann/Vavassori v Lammons/Withrow | 7-5,6-3 |
| ATP Cagliari MD | 2021/04/05 15:25 | Lammons/Withrow v Bolelli S / Molteni A | 5-7,4-6 |
| ATP - Marseille - Doubles Hommes | 2021/03/12 11:30 | Arends S / Pel D v Lammons/Withrow | 6-1,7-6 |
| ATP - Marseille - Doubles Hommes | 2021/03/11 10:30 | Lammons/Withrow v Bambridge/Inglot | 7-6,7-6 |