Argentina: M25 Hurlingham - Doubles - Main |
| Semi-finals | Merino A./Pena Lopez M. | Carou I./Comesana F. | 0:2 (4:6, 5:7) | details | 06.03.2020 |
| Quarter-finals | Merino A./Pena Lopez M. | Uryson N./Villanueva G. | 2:0 (6:4, 7:5) | details | 05.03.2020 |
| 1/8-finals | Merino A./Pena Lopez M. | Diaz Acosta F./Tirante T. A. | 2:1 (4:6, 6:2, 10:4) | details | 03.03.2020 |
Argentina: M25 Rio Cuarto - Doubles - Main |
| Final | Merino A./Pena Lopez M. | Etcheverry T. M./Kestelboim M. | 1:2 (3:6, 6:1, 2:10) | details | 01.03.2020 |
| Semi-finals | Merino A./Pena Lopez M. | Cerundolo J. M./Sorgi J. P. | WO. | details | 28.02.2020 |
| Quarter-finals | Merino A./Pena Lopez M. | Arreche N. A./Justo G. I. | 2:0 (6:4, 6:4) | details | 27.02.2020 |
| 1/8-finals | Merino A./Pena Lopez M. | Hidalgo G. A./Villanueva G. | 2:0 (7:65, 6:2) | details | 25.02.2020 |
Uruguay: M25 Punta del Este - Doubles - Main |
| Final | Agamenone F./Dutra Da Silva D. | Merino A./Pena Lopez M. | 2:0 (6:0, 6:1) | details | 21.02.2020 |
| Semi-finals | Arguello F./Egea F. E. | Merino A./Pena Lopez M. | 0:2 (5:7, 64:7) | details | 20.02.2020 |
| Quarter-finals | Arreche N. A./Galarza J. I. | Merino A./Pena Lopez M. | 1:2 (6:4, 3:6, 8:10) | details | 20.02.2020 |
| 1/8-finals | Casanova H./Riquelme Coppari A. | Merino A./Pena Lopez M. | 0:2 (4:6, 4:6) | details | 17.02.2020 |
Peru: M25 Lima 2 - Doubles - Main |
| Semi-finals | Alvarez N./Panta J. | Merino A./Pena Lopez M. | 2:0 (6:3, 7:5) | details | 14.02.2020 |
| Quarter-finals | Bueno G./Buse I. | Merino A./Pena Lopez M. | 0:2 (4:6, 4:6) | details | 13.02.2020 |
| 1/8-finals | Iamachkine P./Vilicich B. | Merino A./Pena Lopez M. | 0:2 (2:6, 3:6) | details | 11.02.2020 |
USA: M25 Weston - Doubles - Main |
| Final | Merino A./Pena Lopez M. | Arias B./Dutra Da Silva D. | 0:2 (4:6, 62:7) | details | 01.02.2020 |
| Semi-finals | Gonzales R./Roelofse R. | Merino A./Pena Lopez M. | 0:2 (4:6, 3:6) | details | 31.01.2020 |
| Quarter-finals | Merino A./Pena Lopez M. | Dempster I./Lovett K. | 2:0 (6:2, 6:4) | details | 30.01.2020 |
| 1/8-finals | Merino A./Pena Lopez M. | Bergevi F./Freund S. | 2:0 (7:65, 6:4) | details | 28.01.2020 |
| 1/8-finals | Merino A./Pena Lopez M. | Gold H./Grollman J. | CAN. | details | 28.01.2020 |
Mexico: M15 Cancun 2 - Doubles - Main |
| Quarter-finals | Merino A./Pena Lopez M. | Alves M./Olivieri G. A. | 1:2 (7:66, 2:6, 8:10) | details | 23.01.2020 |
| 1/8-finals | Merino A./Pena Lopez M. | Aramburu Contreras I. J./Ortega J. V. | 2:0 (6:0, 6:1) | details | 22.01.2020 |
Mexico: M15 Cancun - Doubles - Main |
| Quarter-finals | Merino A./Pena Lopez M. | Fox D./Whitehouse M. | 1:2 (5:7, 6:2, 8:10) | details | 16.01.2020 |
| 1/8-finals | Merino A./Pena Lopez M. | Vance J./Wettengel C. | 2:0 (6:2, 6:2) | details | 15.01.2020 |
USA: Champaign - Doubles - Main |
| Quarter-finals | Merino A./Pena Lopez M. | Glasspool L./Lawson A. | 0:2 (3:6, 4:6) | details | 15.11.2019 |
| 1/8-finals | Dempster I./Lovett K. | Merino A./Pena Lopez M. | 0:2 (4:6, 3:6) | details | 13.11.2019 |