On your marks ... Sen. John Kerry, D-Mass., prepares to fire the start gun for the wheelchair race of the 111th Boston Marathon on Monday, April 16, 2007, in Hopkinton, Mass.
A runner dressed as a butterfly celebrates his crossing of the start line during the 111th Boston Marathon on Monday, April 16, 2007, in Hopkinton, Mass.
A runner reaches out to a supporter at the start of the 111th Boston Marathon on Monday, April 16, 2007, in Hopkinton, Mass.
Elite women runners, from left, Alice Chelangat (8) of Kenya, Rita Jeptoo (1) of Kenya, Robe Tola Guta (5) of Ethiopia, and Jelena Prokopcuka (2) of Latvia cross the start line of the 111th Boston Marathon on Monday, April 16, 2007, in Hopkinton, Mass.
Christian Lavoie, front right, of Hopkinton, Mass., cheers runners as they pass at the start of the 111th running of the Boston Marathon on Monday, April 16, 2007, in Hopkinton. A total of 23,903 runners registered for the race, with 2,449 choosing not to pick up their bib numbers over the weekend, likely due to the weather.
Jelena Prokopcuka of Latvia (2), Madai Perez of Mexico (4), and Lidiya Grigoryeva of Russia (6), run through Boston during the 111th Boston Marathon on Monday, April 16, 2007. Grigoryeva finished first, Prokopcuka finished second and Perez finished third.
Kenya's Robert Cheruiyot dashes the final blocks to win the 111th Boston Marathon as a television crew on a motorcycle tips over on a slick street Monday, April 16, 2007.
Kenya's Robert Cheruiyot spreads his arms just before breaking the tape in Boston's Copley Square as he wins the 111th Boston Marathon on Monday, April 16, 2007.
Kenya's Robert Cheruiyot raises his hand as he celebrates winning the 111th Boston Marathon in Boston on Monday, April 16, 2007. Cheruiyot crossed the finish line with a time of 2:14:13. It was his second win in a row and his third win in five years.
Russia's Lidiya Grigoryeva celebrates winning the 111th Boston Marathon in Boston on Monday, April 16, 2007. Grigoryeva crossed the finish line with a time of 2:29:18. Runners had to contend with rain and 52 mph winds.
Runners make their way through the rain to the athletes village Monday, April 16, 2007, before the start of the 111th Boston Marathon in Hopkinton, Mass.
Deena Kastor of the United States crosses the finish line as the top female American finisher during the 111th running of the Boston Marathon on April 16, 2007. Extreme weather made for tough conditions, with heavy winds and rain.
Masazumi Soejima of Japan raises his hands as he crosses the finish line to win the men's wheelchair division of the 111th running of the Boston Marathon on April 16, 2007, in Boston. Heavy winds and rain made for tougher-than-usual weather conditions.
Wakako Tsuchida of Japan raises her trophy after winning the woman's wheelchair division of the 111th running of the Boston Marathon on April 16, 2007.