4x100

Sha'carri Richardson & Melissa Jefferson-Wooden Lead USA to 4x100 Gold at Tokyo World Championships

Sha'Carri SLAMS THE DOOR as Team USA clinches women's 4x100 finals berth in Tokyo | NBC Sports

Disastrous handoffs eliminate two favorites in shocking men's 4x100 heat at worlds | NBC Sports

American quartet hangs on in 4x100 relay heat to advance to men's final at worlds | NBC Sports