Stadium: Court 3 Round: 26 Ground: Clay
| ATP Santiago MD | 2021/03/12 15:00 | Klaasen/Mclachlan v Bolelli/Gonzalez | 4-6,4-6 |
| ATP Belgrade MD | 2021/04/22 10:00 | Brkic/Cacic v Bolelli/Gonzalez | 0-6,7-6,10-8 |
| ATP Belgrade MD | 2021/04/21 14:45 | Kecmanovic/Lajovic v Bolelli/Gonzalez | 4-6,4-6 |
| ATP Santiago MD | 2021/03/14 16:45 | Bolelli/Gonzalez v Delbonis/Munar | 7-6,6-4 |
| ATP Santiago MD | 2021/03/12 15:00 | Klaasen/Mclachlan v Bolelli/Gonzalez | 4-6,4-6 |
| ATP Santiago MD | 2021/03/11 18:40 | Bolelli/Gonzalez v Arneodo/Paire | 6-2,7-6 |
| ATP Santiago MD | 2021/03/10 20:00 | Bolelli/Gonzalez v Brkic/Cacic | 7-6,6-3 |
| ATP Buenos Aires MD | 2021/03/04 19:00 | Koepfer/Sousa v Bolelli/Gonzalez | 4-6,7-6,10-5 |
| ATP Buenos Aires MD | 2021/03/02 21:40 | D Acosta/Tirante v Bolelli/Gonzalez | 6-7,1-6 |
| ATP Belgrade MD | 2021/04/20 15:25 | Sabanov/Sabanov v Klaasen/Mclachlan | 6-4,6-2 |
| ATP Monte Carlo MD | 2021/04/16 15:15 | Evans/Skupski v Klaasen/Mclachlan | 1-6,7-6,10-4 |
| ATP Monte Carlo MD | 2021/04/14 15:15 | Klaasen/Mclachlan v Ram/Salisbury | 6-7,6-3,10-5 |
| ATP Monte Carlo MD | 2021/04/13 11:00 | De Minaur/Peers v Klaasen/Mclachlan | 6-7,6-3,9-11 |
| ATP Miami MD | 2021/03/27 19:45 | Klaasen/Mclachlan v Demoliner/Gonzalez | 3-6,4-6 |
| ATP Acapulco MD | 2021/03/18 00:00 | Herbert/Mahut v Klaasen/Mclachlan | 6-4,6-4 |
| ATP Santiago MD | 2021/03/12 15:00 | Klaasen/Mclachlan v Bolelli/Gonzalez | 4-6,4-6 |
| ATP Santiago MD | 2021/03/11 15:00 | Klaasen/Mclachlan v Jarry/Mayer | 2-6,7-5,10-8 |