4 x 400 m Relay, Mixed
| Competition | 2017 World Athletics U18 Championships |
|---|---|
| Venue |
Nairobi
 KEN
|
| Held | — |
| Status | Medal |
| Competitors | 14 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:21.71 | ||
| Bruno Benedito da Silva | — | ||||
| Giovana Rosália Dos Santos | — | ||||
| Jéssica Moreira | — | ||||
| Alison dos Santos | — | ||||
| 🥈 | Jamaica |  JAM |
3:22.23 | ||
| Shaquena Foote | — | ||||
| Anthony Cox | — | ||||
| Sanique Walker | — | ||||
| Antonio Watson | — | ||||
| Joanne Reid | — | * | |||
| Tyrese Reid | — | * | |||
| 🥉 | South Africa |  RSA |
3:24.45 | ||
| Gontse Morake | — | ||||
| Retshidisitswe Mlenga | — | ||||
| Zenéy Van der Walt | — | ||||
| Sokwakhana Zazini | — |