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129th Boston Marathon Underway with Defending Champions Competing

The historic race, featuring 30,000 participants, began with military marchers and elite wheelchair racers on Patriots’ Day in ideal conditions.

Former Boston Bruins NHL player Zdeno Chara (center #3333) looks on before he crosses the finish line of the 128th Boston Marathon on April 15, 2024 in Boston, Massachusetts.
Hopkinton, MA – April 16: An employee of Mission Turf Services works on painting the starting line for the 129th Boston Marathon. (Photo by Craig F. Walker/The Boston Globe via Getty Images)
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Athletics - The 129th Boston Marathon - Boston, Massachusetts, U.S. - April 21, 2025 Kenya's John Korir crosses the line to win the men's category in Boston Marathon REUTERS/Kylie Cooper

Overview

  • The 129th Boston Marathon officially started at 6 a.m. ET with military marchers from the Massachusetts National Guard leading the way.
  • Defending champions Sisay Lemma and Hellen Obiri are competing to retain their titles against a highly competitive field of elite runners.
  • The race includes approximately 30,000 participants across professional, amateur, para-athletic, and wheelchair divisions, celebrating inclusivity and tradition.
  • The event is being broadcast live locally on WCVB and nationally on ESPN, with staggered start times for various divisions throughout the morning.
  • This year marks the 50th anniversary of the wheelchair race and the 250th anniversary of Patriots’ Day, adding historical significance to the marathon.