Boston Marathon heat proves a heartbreaker More than 2,100 runners treated for dehydration, exhaustion ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Dina Rudick/Globe Staff Boston Marathon runners doused themselves with water at the halfway water station in Wellesley. Dina Rudick/Globe Staff The Wellesley water station continued to provide relief to runners of the second-slowest Boston Marathon since 1985. Dina Rudick/Globe Staff The heat in Wellesley took its toll. Dina Rudick/Globe Staff Overheated runners took advantage of a water station at the halfway mark in Wellesley. Michael Dwyer/Associated Press High temperatures, like those experienced at the Wellesley watering station, may have convinced thousands of entrants to skip Monday's Marathon. Michael Dwyer/Associated Press Empty water cups littered the course near a Wellesley watering station. Dina Rudick/Globe Staff A female runner collapsed at the halfway mark next to Wellesley College. She was immediately taken away on a stretcher by Wellesley fire department staff. John Blanding/Globe Staff Joe Verdone hosed off overheated runners climbing Heartbreak Hill in Newton. John Blanding/Globe Staff Harvard residents Jen Schoenberg (left) and Mary Hawes were waited on Commonwealth Avenue in Newton for Schoenberg's husband, Jon Schoenberg, who was running his 20th Marathon. John Blanding/Globe Staff Martiza Rodriguez, from Ecuador, cooled off at water station at Heartbreak Hill in Newton. John Blanding/Globe Staff A runner was transported across Commonwealth Avenue from the medical tent to an ambulance at Heartbreak Hill in Newton Monday. John Tlumacki/Globe Staff A heated runner was helped across the finish line. David L. Ryan/Globe Staff A runner was transported across the finish line. Charles Krupa/Globe Staff John Ouweleen, 71, of Sebastian, Fla., was helped by medical workers when he cramped up after finishing the race. David L. Ryan/Globe Staff A runner collapsed at the finish line. David L Ryan/Globe Staff American Tyrell Heaton was helped to the finish line by Canadian Jeff Fyfe, left, and American Blake Whitney.