Campbell-Brown came in fourth in the finals with a time of 22.38 seconds.
She had won the gold in the 200m in 2004 (Athens) and 2008 (Beijing).
Update (August 8, noon):
Former Razorback Veronica Campbell-Brown runs for a medal in the 200 meters this afternoon.
The race begins at three o'clock.
Original Story (August 7):
Former Razorback Veronica Campbell-Brown still has a chance to win a medal in the 200 meters.
She qualified for Wednesday's finals by finishing first in the first heat of the semifinals this afternoon with a time of 22.32 seconds
Campbell-Brown will run next in the finals for a medal tomorrow afternoon at 3:00.
To get into the semifinals, Campbell-Brown came in third in heat 5 of the 200m qualifying races Monday with a time of 22.75 seconds.
Campbell-Brown was 11th overall in the opening round of the 200 meters.
VCB already won a bronze medal in the women's 100m with a time of 10.81 seconds.