TASTY RACE: Kipchirchir Runs 3:55, Bor Becomes 500th American Under 4

TASTY RACE: Kipchirchir Runs 3:55, Bor Becomes 500th American Under 4

Shadrack Kipchirchir runs 3:55 to hold off Justyn Knight. Emmanuel Bor becomes the 500th American to break four minutes in the mile