Overview
- The race, which starts Monday, brings back defending champions Sharon Lokedi and John Korir to lead more than 30,000 runners from Hopkinton to Boston.
- Forecasts call for cool temperatures with a tailwind, conditions that could set up another year of quick pacing and potential course-best challenges.
- U.S. depth is notable with 12 men owning personal bests under 2:10 and eight women under 2:25, including Emily Sisson, Fiona O’Keeffe, Sara Hall and Susanna Sullivan.
- Law enforcement says the security posture reflects a heightened threat environment tied to the war in Iran with no specific or credible threats, and spectators are urged to avoid large bags and stay alert.
- In the wheelchair races, eight-time Boston winner Marcel Hug seeks another title, while past champions Manuela Schar, Tatyana McFadden and Eden Rainbow‑Cooper return as defending champion Susannah Scaroni sits out due to pregnancy.