Stadium: Estadio Manolo Santana Round: 29 Ground: Clay
| ATP Buenos Aires MD | 2021/03/07 16:00 | Behar/Escobar v Brkic/Cacic | 3-6,5-7 |
| ATP Marbella MD | 2021/04/10 12:30 | Nys/Puetz v Behar/Escobar | 4-6,6-7 |
| ATP Marbella MD | 2021/04/08 10:00 | Behar/Escobar v Goransson/Monroe | 6-4,7-5 |
| ATP Marbella MD | 2021/04/06 15:15 | Saville/Smith v Behar/Escobar | 1-6,7-5,10-12 |
| ATP Santiago MD | 2021/03/10 16:40 | Behar/Escobar v Demoliner/Gonzalez | 3-6,4-6 |
| ATP Buenos Aires MD | 2021/03/07 16:00 | Behar/Escobar v Brkic/Cacic | 3-6,5-7 |
| ATP Buenos Aires MD | 2021/03/06 19:35 | Krajicek/Skugor v Behar/Escobar | 6-7,6-4,3-10 |
| ATP Buenos Aires MD | 2021/03/05 17:00 | Behar/Escobar v Marach/Martinez | 6-2,7-6 |
| ATP Buenos Aires MD | 2021/03/01 18:30 | Behar/Escobar v Kecmanovic/Mager | 6-3,6-7,10-6 |
| ATP Marbella MD | 2021/04/09 12:00 | Arevalo/Middelkoop v Brkic/Cacic | 4-6,4-6 |
| ATP Marbella MD | 2021/04/07 15:15 | Brkic/Cacic v Daniell/Oswald | 4-6,7-6,11-9 |
| ATP Marbella MD | 2021/04/06 13:55 | Brkic/Cacic v Arends/Pel | 1-6,6-0,10-5 |
| ATP Santiago MD | 2021/03/10 20:00 | Bolelli/Gonzalez v Brkic/Cacic | 7-6,6-3 |
| ATP Buenos Aires MD | 2021/03/07 16:00 | Behar/Escobar v Brkic/Cacic | 3-6,5-7 |
| ATP Buenos Aires MD | 2021/03/05 18:45 | Koepfer/Sousa v Brkic/Cacic | 6-3,6-7,5-10 |
| ATP Buenos Aires MD | 2021/03/03 21:05 | Brkic/Cacic v Carballes Baena/Caruso | 6-3,6-4 |
| ATP Cordoba MD | 2021/02/25 18:50 | Bagnis/Gonzalez v Brkic/Cacic | 7-5,7-6 |