“The U.S. team had to return to the track 7½ hours later to race against the clock, needing a time of at least 42.70 seconds to top China’s first-round time. The Chinese team was the last one into the final, finishing less than 0.01 of a second slower than Canada. After unsuccessfully protesting the IAAF’s decision, China had to sit idly while the Americans took aim at their spot in the final”
