Walsh Jennings and May-Treanor won gold medals in Athens in 2004 and Beijing in 2008 without losing a match, and they ran their unbeaten streak to 20 with their 22-20, 22-20 victory over China’s Xue Chen and Zhang Xi in the semifinals.
Ross and Kessy advanced with a 15-21, 21-19, 15-12 win against top-ranked Brazilians Juliana and Larissa.
“We want to seal the deal that we’re the best team that’s ever happened,” Walsh Jennings said. “Misty has changed my life. I just love her. I want to win tomorrow for us.”
TRACK AND FIELD: Usain Bolt is eyeing another gold after he cruised through 200-meter qualifying, jogging down the stretch on his way to a stress-free first-round heat of 20.39 seconds.
The World’s Fastest Man repeated in the 100 on Sunday night when his 9.63-second run set an Olympic record. He is trying to become the only man with two Olympic titles in the 200.
In other events, Algeria’s Taoufik Makhloufi (men’s 1,500 meters), Australia’s Sally Pearson (100-meter hurdles), Germany’s Robert Harting (men’s discus) and Russia’s Ivan Ukhov (men’s high jump) won gold medals.
Pearson captured Australia’s fourth gold medal by edging defending champion Dawn Harper, of the U.S., to win in an Olympic-record 12.35 seconds. Harper was clocked in 12.37. The U.S. also took the bronze, with Kellie Wells finishing in 12.48.
Lolo Jones, the favorite four years ago who fell at the ninth of 10 hurdles, was fourth in 12.58.
SOCCER: Brazil reached its first Olympic men’s soccer final in 24 years when it beat South Korea behind two second-half goals by Leandro Damiao.
The Brazilians will face Mexico, which beat Japan 3-1 in the other semifinal.
Brazil was the bronze medalist in 2008 but hadn’t reached the Olympic final since the 1988 Seoul Games, when it finished with the silver with a team led by Romario and Bebeto.
VOLLEYBALL: The U.S. women’s team played without captain Lindsey Berg, but still managed a 25-14, 25-21, 25-22 victory over the Dominican Republic in the tournament quarterfinals.
Berg is day to day with a left ankle injury and her status for Thursday’s match against South Korea is uncertain. Courtney Thompson started at setter in the Americans’ sixth consecutive victory at the games.
WATER POLO: Maggie Steffens scored four goals and the U.S. women’s team topped Australia 11-9 in overtime.
EQUESTRIAN: Britain ended Germany’s decades-long domination of team dressage by winning the gold, adding to its first team show jumping gold in 60 years, which it won a day earlier.
Germany took the silver and the Netherlands got the bronze.
The competition received unusual attention at the London Games because the U.S. team featured Rafalca, a horse co-owned by the wife of the Republican presidential candidate Mitt Romney. The U.S. was sixth and Rafalca, ridden by Jan Ebeling, finished in 28th place.
DIVING: Ilya Zakharov, of Russia, scored 104.50 points on his last dive to win the 3-meter springboard, stopping China’s bid to sweep all eight diving events.
Troy Dumais, of the U.S., finished fifth, his best showing in four Olympics.
SYNCHRONIZED SWIMMING: Natalia Ishchenko and Svetlana Romashina won duet for Russia, which hasn’t lost an Olympic synchronized swimming event since the 1996 Atlanta Games.
FIELD HOCKEY: Britain qualified for the Olympic men’s semifinals for the first time since 1988 by surviving a dramatic finish to draw 1-1 with Spain.
Britain completed a semifinals lineup that includes the last six Olympic winners. The home side will face the Netherlands (1996, 2000), and Germany (1992, 2008) takes on Australia (2004).
It was a family affair on the podium for the men’s triathlon, with Alistair Brownlee taking the gold for Britain and younger brother Jonathan finishing third.
Alistair Brownlee pulled away from Javier Gomez of Spain halfway through the 10-kilometer run to finish in 1 hour, 46 minutes, 25 seconds. Gomez took silver, and Jonathan Brownlee secured the bronze despite serving a 15-second time penalty.
The younger Brownlee collapsed 10 minutes after the finish and had to be given ice packs and glucose by medical staff, delaying the medal ceremony.