Botswana entered the 4x400m relay finals as the favorites after running 3:03.75 to win their prelim. The USA ran just 3:07 in the first round, but ran with confidence in the final to take down Botswana, 3:02.39 to 3:02.81. In the video, Team USA cheers on anchor Wil London as he runs down Botswana for gold. Roster: Ari Cogdell, Champion Allison, Kahmari Montgomery, Wil London