Sha’Carri Richardson runs 100m world lead at U.S. Track and Field Championships

Richardson’s 10.71 seconds at the U.S. champs is the fastest time in the world this year

Camille Herron breaks her 100-mile world record

Herron’s average pace was four minutes and 44 seconds for 161 kilometres

Ultrarunner moves 1,600 miles so he can run during impending lockdown

Kallin Kahn moved from Portland to a farm in rural Iowa so he could continue to run if the U.S. goes into a full lockdown