U.S. women's 4x100 relay advances to final stage

RIO DE JANEIRO — In a strange scene in a sparsely filled Olympic Stadium, the U.S. women's 4x100 relay stepped on the track and ran a solo time trial.
The time, 41.77, was more than good enough to earn the USA a trip to the final Friday night. Indeed, it was the top qualifier.
The USA dropped the baton on the second exchange on Thursday morning in the qualifying heats, knocking them out of the final. However, Allyson Felix said she was bumped by a Brazilian runner right before she got to the zone, and replays confirmed. Brazil was disqualified, and a U.S. appeal was upheld