ST. MORITZ, Switzerland -- Elana Meyers got a silver medal around her neck, then a ring on her finger.
Not a bad day for the top U.S. women's bobsled pilot.
Olympic champion Kaillie Humphries of Canada successfully defended her world championship Saturday, teaming with brakeman Chelsea Valois to finish the four-run competition in 4 minutes, 30.31 seconds -- 0.68 seconds faster than Meyers and Katie Eberling, who had been third after the first two runs Friday.
Meyers, who drove her way to the bronze at worlds last year, edged 2006 Olympic champion Sandra Kiriasis of Germany and brakewoman Franziska Bertels by 0.02 seconds, getting it done with a strong final run down the St. Moritz track.
"That was a fun race," Meyers said. "Katie and I knew we had to battle it out against these experienced teams and that the only way we'd be in the medal hunt was if we laid it all on the line. That's what we did."
The fast fourth run wasn't even the highlight of Meyers' day: Fellow U.S. bobsled team member Nic Taylor, her longtime boyfriend, proposed at the medal ceremony. Meyers accepted.
Kiriasis reached the fastest speed of the competition (90 mph), but superior driving by Humphries proved to be the difference. The Canadian has been dominant on the World Cup circuit all season, and is already widely considered the favorite for the 2014 Sochi Olympics.
"Four consistently good runs are what won us gold," Humphries said. "Now Sochi is my next goal."
Jazmine Fenlator and Aja Evans took the USA-2 women's sled to an eighth-place finish, and Jamie Greubel and Olympic veteran Emily Azevedo finished in 15th place in USA-3.
Earlier, junior world champion Francesco Friedrich of Germany led the two-man competition. Defending champion Steven Holcomb of the U.S. is third.
The 22-year-old Friedrich and brakeman Jannis Baecker hold a 0.35-second advantage over World Cup champion Beat Hefti and Thomas Lamparter of Switzerland. Friedrich had a combined two-run time of 2 minutes, 11.10 seconds.
Holcomb and Steven Langton have 0.77 seconds to make up in the final two runs scheduled Sunday.
"We're hoping to throw down tomorrow to move up in the standings," Holcomb said. "We're going to put it all on the line and try to win this thing."
Cory Butner and Chris Fogt are in seventh place at the midway point of the two-man competition for the U.S., with the USA-3 sled of Nick Cunningham and Dallas Robinson in 13th place after two runs.