We have compiled for you all results from the 2018 South American Games (Resultados de Natacion Artistica de los Juegos Suramericanos de 2018) held in Cochabamba, Bolivia.
Duet
| Rank | Nation | Swimmers | Technical Score | Free Score | Total Score |
| 1 | Colombia | Estefania Alvarez, Monica Arango | 81.9662 | 82.0667 | 164.0329 |
| 2 | Brazil | Luisa Borges, Maria Clara Lobo Coutinho | 80.4704 | 82.1000 | 162.5704 |
| 3 | Argentina | Camila Arregui, Trinidad Lopez Brasesco | 76.1106 | 78.6000 | 154.7106 |
| 4 | Chile | Bianca Consigliere, Isidora Letelier | 74.9289 | 76.0667 | 150.9956 |
| 5 | Peru | Carla Morales Gamboa, Cielomar Romero Garcia | 70.3615 | 71.6000 | 141.9615 |
| 6 | Venezuela | Lilia Elena Nunez, Maria Romero | 67.2079 | 67.4667 | 134.6746 |
| 7 | Uruguay | Ana Madeira Pintos, Clara de Leon de Mello | 66.1291 | 65.8333 | 131.9624 |
Team
| Rank | Nation | Swimmers | Technical Score | Free Score | Total Score |
| 1 | Colombia | Arango, Alvarez, Cerquera, Cubillos, Jaramillo, Orozco, Rodriguez, Taborda, Barrera (R) | 79.1752 | 81.6667 | 160.8419 |
| 2 | Chile | Carrasco, Consigliere, Fleckenstein, Kobler, Letelier, Lubascher, Osorio, Signorelli, Massoni (R) | 74.3295 | 76.8333 | 151.1628 |
| 3 | Argentina | Arregui, Lopez Brasesco,Marelli, Neri B., Neri C., Rapelli, Re, Caussi (R) | 73.1282 | 76.4667 | 149.5959 |
| 4 | Peru | Carrasco Chavez, Ccoyllo Rumiche, Morales Gamboa, Quiroz Villaran, Patino Huerta, Rolando Walter, Romero Garcia, Romero Garcia, Lopez Coronado (R) | 68.3328 | 72.1333 | 140.4661 |
| 5 | Venezuela | Bastardo, Nunez, Romero, Roque Mendez, Navarro, Salazar, Sanchez, Sibriani | 68.6941 | 69.5667 | 138.2608 |