“As the sport of marathoning has increased in popularity and the demand for a place in the Boston Marathon has reached record levels, the B.A.A. has continued to analyze race results from events across the world,” said Jack Fleming, B.A.A. President and Chief Executive Officer. “The new downhill course adjustments are the next step in our evolving Boston Marathon registration process. We wanted to give athletes and events ample time to prepare in advance of the 2027 Boston Marathon registration period. We know athletes plan their qualifying marathons well in advance.”, Boston Marathon Monday, April 20, 2026 As the presenting sponsor, Bank of America continues to ensure the stability of the world's oldest annual marathon., Your home for Boston Marathon & B.A.A. race tracking, leaderboards, information, course maps, and more! Athletes' Village features free monthly challenges, paid training programs, and a community to connect with fellow runners! It is also your central location for B.A.A. race & volunteer history, results, updates, registration..