Women Run for Olympic Spots

More than 100 women are set to compete in the U.S. women's Olympic marathon trials in Boston on Sunday, the day before the 112th Boston Marathon.

The undisputed favorite is U.S. marathon record-holder Deena Kastor, 34. She placed second in the 2004 Olympic marathon trials, but then took home the bronze medal in the 2004 Olympic marathon in Athens. Colleen De Reuck, who won the 2004 Trials, will not run on Sunday due to injury.

Joan Benoit Samuelson, who won the first women's Olympic marathon in 1984, will also participate in Sunday's trials. At 50, she's the oldest in the field. And although she won't be challenging for a spot on the team, she has an ambitious goal of sub-2:50 for her last Olympic trials.

Sunday's race will be webcast live on NBCSports.com/marathon, beginning at 8 a.m.

• The Top Contenders
• Race Stats and Facts
• Course Preview