4 x 400 m Relay, Mixed
| Competition | 2026 South American Games |
|---|---|
| Venue |
Rosario, Santa Fe, and Rafaela
 ARG
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Argentina | ARG |
3:16.93 | ||
| Agustín Pinti | — | ||||
| Florencia Lamboglia | — | ||||
| Elián Larregina | — | ||||
| Megan Powell | — | ||||
| 🥈 | Colombia |  COL |
3:17.78 | ||
| Daniel Balanta | — | ||||
| Melany Bolaño | — | ||||
| Julio Ángulo | — | ||||
| Lina Licona | — | ||||
| 🥉 | Ecuador |  ECU |
3:18.33 | ||
| Dhustyn Morquecho | — | ||||
| Génesis Cañola | — | ||||
| Steven Méndez | — | ||||
| Nicole Caicedo | — |