Mexico: Acapulco - Doubles - Main |
| 1/8-finals | Pacheco Mendez R./Vallejo D. | Matuszewski P./Romios M. C. | CAN. | details | 18.04.2024 |
Brazil: Florianopolis - Doubles - Main |
| 1/8-finals | Prado Angelo J. C./Vallejo D. | Taylor A./Villanueva G. | WO. | details | 03.04.2024 |
Paraguay: Asuncion - Doubles - Main |
| 1/8-finals | Cukierman D./Kestelboim M. | Vallejo D./Vergara del Puerto M. A. | 2:0 (6:4, 6:3) | details | 21.03.2024 |
Bolivia: Santa Cruz - Doubles - Main |
| 1/8-finals | Prado Angelo J. C./Vallejo D. | Collarini A./Olivo R. | 1:2 (2:6, 6:4, 6:10) | details | 06.03.2024 |
Argentina: M25 Tucuman - Doubles - Main |
| 1/8-finals | Aboian L./Aboian V. | Prado Angelo J. C./Vallejo D. | CAN. | details | 28.02.2024 |
Uruguay: M25 Punta del Este 2 - Doubles - Main |
| Quarter-finals | Prado Angelo J. C./Vallejo D. | Roncadelli F./Saraiva Dos Santos P. A. | 0:2 (4:6, 4:6) | details | 15.02.2024 |
| 1/8-finals | Carou I./Mena F. | Prado Angelo J. C./Vallejo D. | 0:2 (4:6, 2:6) | details | 15.02.2024 |
Uruguay: M25 Punta del Este - Doubles - Main |
| 1/8-finals | Bueno G./Vallejo D. | Dutra Da Silva D./Ribeiro E. | CAN. | details | 08.02.2024 |
World: Davis Cup - World Group II - Doubles - Preliminary |
| | Vallejo D./Vergara del Puerto M. A. | Arneodo R./Nys H. | 0:2 (62:7, 4:6) | details | 04.02.2024 |
Uruguay: Montevideo - Doubles - Main |
| 1/8-finals | Buse I./Vallejo D. | Arias B./Zeballos F. | 0:2 (4:6, 3:6) | details | 14.11.2023 |
Peru: Lima 2 - Doubles - Main |
| 1/8-finals | Olivo R./Ymer E. | Buse I./Vallejo D. | 2:1 (4:6, 6:3, 10:4) | details | 08.11.2023 |
Chile: Antofagasta - Doubles - Main |
| 1/8-finals | Soto M./Vallejo D. | Romboli F./Zormann Da Silva M. | 0:2 (4:6, 1:6) | details | 20.09.2023 |
Bolivia: Santa Cruz - Doubles - Main |
| 1/8-finals | Prado Angelo J. C./Vallejo D. | Boscardin Dias P./Heide G. | 1:2 (6:3, 5:7, 3:10) | details | 14.09.2023 |
Argentina: M15 Buenos Aires - Doubles - Main |
| 1/8-finals | Cigarran T./Gagliardo L. | Midon L./Vallejo D. | 2:1 (6:4, 2:6, 10:3) | details | 29.08.2023 |
Peru: Lima - Doubles - Main |
| Final | Bueno G./Vallejo D. | Buse I./Panta J. | 2:0 (6:4, 6:2) | details | 26.08.2023 |
| Semi-finals | Bueno G./Vallejo D. | Gomez J. S./Urrea A. | 2:1 (2:6, 7:65, 12:10) | details | 25.08.2023 |