CARDIFF, Wales -- South Korea beat Britain 5-4 in a penalty shootout on Saturday night, advancing to the semifinal of the men's soccer tournament at the London Games and eliminating the host nation.
Ki Sung-yueng scored the winning penalty after Daniel Sturridge missed the fifth penalty for Britain, which hadn't fielded a men's Olympic soccer team since 1960.
The score was 1-1 after regulation time, and neither team scored in the 30-minute overtime.
South Korea will play its semifinal against Brazil, which won its quarterfinal earlier Saturday, 3-2 against Honduras.
Nicola Spirig of Switzerland won the gold medal in a photo finish with a Swedish challenger at the Olympic triathlon. The end of the race was so close that both women celebrated after crossing the line.
Spirig held off Lisa Norden to claim gold in 1 hour, 59.48 seconds. The runners were given the same time, and Spirig was declared the winner after a few minutes of uncertainty.
Erin Densham of Australia took bronze on the course through Hyde Park in central London in 1:59.50.
The U.S. men's team blew a two-set lead and lost to Russia in five, snapping an 11-match winning streak in Olympic play.
Maxim Mikhaylov scored 27 points for No. 2 Russia in the 27-29, 19-25, 26-24, 25-16, 15-8 victory. Sergey Tetyukhin spiked for match point.
Germany, Poland, and Italy also won.
China's Wu Mingxia cruised into the 3-meter springboard final after qualifying in the top spot during the Olympic semifinals.
Wu, who is seeking her record-tying sixth Olympic diving medal, totaled 394.400 points in the five rounds, giving her a lead of 32.30 points over second-place Tania Cagnotto of Italy, who had 362.100.
Wu already owns three gold medals in 3-meter synchro, as well as one silver and one bronze. One more would tie her with retired Chinese star Guo Jingjing, as well as give China its fifth diving gold of the London Games.
Cassidy Krug of the U.S. was fifth at 345.600 in her first Olympics. Her teammate, Christina Loukas, advanced to Sunday's final in sixth at 339.750.
Vanja Udovicic scored three goals and Serbia beat the United States 11-6 in the men's tournament.
It was the first loss of the London Games for the Americans, who will face three-time defending champion Hungary in their last group game.
Croatia, Montenegro, Spain, Italy, and Hungary also won.
Britain is dominating the cycling slate.
The women's pursuit team won in a time of 3 minutes, 14.051 seconds to lower the world record they set earlier in the day.
The U.S. won the silver medal. Canada beat Australia for the bronze.
Triumphs for Britain in men's four and the lightweight women's double sculls sparked more scenes of jubilation at Dorney Lake and took the host country's tally of golds to four, one more then New Zealand.
Britain finished with nine medals -- four golds, two silvers, and three bronzes -- to surpass the country's record total of eight from the 1908 Olympics. Those games were also held in London.
In the two other finals raced under gloomy skies, Miroslava Knapkova of the Czech Republic won the women's single sculls, and Mads Rasmussen and Rasmus Quist took the lightweight double for Denmark's only gold of the regatta.
New Zealand beat the United States 3-2 in the women's tournament, preventing the Americans from advancing to the medal round.
The Netherlands sealed a place in the semifinals with a 3-2 win over South Korea. China beat Britain 2-1 to stay in the running for the semis, Australia blanked South Africa 1-0, and Belgium drew 1-1 with Japan.
Rosannagh MacLennan earned Canada's first Olympic gold in London, capturing the women's trampoline title when defending champion He Wenna of China wobbled during her final routine. ... China won the fencing gold for women's team epee. ... Ilya Ilin of Kazakhstan defended his weightlifting title in the men's 94-kilogram division. Russia's Alexandr Ivanov was second, and Anatoli Ciricu of Moldova won the bronze. ... South Korea defeated North Korea in men's table tennis, and top-seeded China also advanced.