Stadium: Court 1 Round: 28 Ground: Clay
| Challenger Heilbronn MD | 2021/05/13 16:30 | Kudla/McDonald v Lammons/Withrow | 6-7,2-6 |
| Challenger Rome MD | 2021/04/30 14:30 | Lammons/Withrow v Andreozzi/Duran | 3-6,4-6 |
| Challenger Rome MD | 2021/04/30 10:00 | Lammons/Withrow v Gaston/Lamasine | 4-6,6-1,10-6 |
| Challenger Rome MD | 2021/04/28 15:05 | Lammons/Withrow v Napolitano/Vanni | 7-5,6-3 |
| Challenger Rome MD | 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/Molteni | 5-7,4-6 |
| ATP Marseille MD | 2021/03/12 11:30 | Arends/Pel v Lammons/Withrow | 6-1,7-6 |
| Challenger Heilbronn MD | 2021/05/14 11:00 | Polmans/Sitak v Arends/Sharan | 2-6,6-3,8-10 |
| Challenger Heilbronn MD | 2021/05/12 16:50 | Daniel/Zapata Miralles v Arends/Sharan | 2-6,5-7 |