LONDON -- American cyclist Sarah Hammer, who had led the women's omnium event entering the last of the six events, settled for silver Tuesday when defending gold medalist Laura Trott of Great Britain won the 500-meter time trial in a blistering 35.11 seconds to win the gold.
It was still a redeeming Games for Hammer, who was one of a handful of U.S. athletes who arrived in China four years ago wearing face masks because they were concerned about high levels of pollution in Beijing.
The athletes who wore the masks were excoriated by a USOC officials, termed a "disgrace" and ordered to apologize to the Chinese.
Hammer finished fourth in the time trial, giving her a total of 19 points in the omnium, based on her finish in each of the six events. She had a 15-17 lead entering the final race. But by winning the time trial, Trott ended up winning gold by one point, 18-19.