Stadium: Court 3 Round: 26 Ground: Grass
| ATP Stuttgart MD | 2021/06/10 12:30 | Klaasen/Mclachlan v Begemann/Brown | 4-6,6-3,8-10 |
| French Open MD | 2021/06/03 14:40 | Klaasen/Mclachlan v Purcell/Saville | 6-3,2-6,1-6 |
| French Open MD | 2021/06/02 12:20 | Klaasen/Mclachlan v Bourgue/Pouille | 6-3,6-2 |
| ATP Parma MD | 2021/05/26 12:15 | Marach/Qureshi v Klaasen/Mclachlan | 6-3,6-4 |
| ATP Geneva MD | 2021/05/21 11:40 | Bolelli/Gonzalez v Klaasen/Mclachlan | 3-6,6-3,10-4 |
| ATP Geneva MD | 2021/05/20 11:50 | Klaasen/Mclachlan v Cilic/Golubev | 6-3,7-6 |
| ATP Geneva MD | 2021/05/18 14:10 | Klaasen/Mclachlan v Bambridge/Inglot | 6-3,7-6 |
| ATP Rome MD | 2021/05/13 15:40 | Klaasen/Mclachlan v Ram/Salisbury | 3-6,2-6 |
| ATP Halle MD | 2021/06/15 14:45 | Molteni/Pella v Altmaier/Stricker | 7-6,4-6,10-7 |