| Challenger Porto Alegre MD | 05/01 22:20 | 26 | Harper/Stevenson vs Ambrogi/Carou | View |
| Challenger Concepcion DM | 04/27 19:00 | 29 | Watanabe/Yuzuki v Harper/Stevenson | 6-4,7-6 | |
| Challenger Concepcion DM | 04/26 21:20 | 28 | Harper/Stevenson v Bueno/Farjat | Retired | |
| Challenger Concepcion DM | 04/25 20:40 | 27 | Harper/Stevenson v Roncadelli/Sakellaridis | 6-3,6-4 | |
| Challenger Concepcion DM | 04/24 19:10 | 26 | Harper/Stevenson v B Otarola/Nunez | 6-4,6-3 | |
| Challenger San Miguel de Tucuman DM | 04/20 18:10 | 29 | Harper/Stevenson v Britto/Villanueva | 3-6,2-6 | |
| Challenger San Miguel de Tucuman DM | 04/19 20:50 | 28 | Harper/Stevenson v Aboian/Aboian | 6-3,6-2 | |
| Challenger San Miguel de Tucuman DM | 04/18 18:30 | 27 | Harper/Stevenson v Zeitune/Zeitune | 6-2,6-4 | |
| Challenger San Miguel de Tucuman DM | 04/16 18:55 | 26 | Dutra Da Silva/Kestelboim v Harper/Stevenson | 6-7,3-6 |