2026 Boston Marathon Cutoff Time Tracker and Prediction

Note: The tracker has been updated with an option to only utilize a runner’s fastest time. Set “Use Fastest Time” to True. For more on the methodology and how this impacted the projection, scroll down and sign up for the newsletter. I’m publishing an update in the 5/11/2025 newsletter. The Tableau dashboard below collects data … Read more

What Do the Results of the 2025 London Marathon Mean for the 2026 Boston Cutoff?

It’s been a crazy couple of weeks for the Boston Marathon cutoff time. At the end of March, the projected cutoff time was around 5:20. Although the trend towards larger fields had continued – the number of qualifiers was still dropping slightly, moderating the cutoff time projection. Then along came Boston. Although I anticipated there … Read more

Conner Mantz Almost Broke the American Record at Boston, and He’s Already Back to Running

Feature photo courtesy of erp3d on reddit The 2025 Boston Marathon was an exciting race to watch. The women shattered the existing course record, and the men laid down some of the fastest times in the history of Boston. Among those was Conner Mantz, who challenged for the podium before finishing in fourth place in … Read more