REGISTRATION FOR 2010 BOSTON MARATHON BEGINS WEDNESDAY, SEPTEMBER 9 at 9:00 a.m. EDT
114th edition of the World's Oldest Annual Marathon is Monday, April 19, 2010
Online entry for the 114th Boston Marathon® on Monday, April 19, 2010 (Patriots' Day in the Commonwealth of Massachusetts) begins at 9:00 a.m. EDT on Wednesday, September 9.
Those interested in participating are encouraged to register early. The 2009 Boston Marathon reached its field size limit in late January. The field size will be limited to 25,000 athletes.