4x400m Relay 4x100 Meter Relay 4x100m Relay 4x100 Meters 4x100 Metres Relay 4x100-meter Relay 4x400 Meter Relay 4x100-metre Relay Team USA Sha'Carri Richardson Sha’Carri Richardson Twanisha Terry Melissa Jefferson Team GB Men's 4x100-meter Relay Women's 4x100-meter Relay Women's 4x100 Relay Men's 4x100 Relay Men's 4X100 Relay 4 x 100m Relay 4 x 100-meter Relay 4x400-meter Relay 4x400 Mixed Relay 4x400 Metres Relay Mixed 4x400 Metres Mixed Relay Mixed 4x400m Relay Women's Sprint Relay 4x100 Relay Jamaican Relay Team 4x400 Metres