Mixed 4x400m Relay World Championships 2025 Olympics. Team usa set a world record in the newly contested mixed 4×400 meter relay at world championships, sending themselves into the finals of the event #nbcsports. Just three minutes and 12.16 seconds after the gun had fired for the first event at the world relays, a.

Follow along with the official olympic games paris 2025. Usa break mixed 4x400m relay world record.