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 it impacts the projection, read the May update here. The Tableau dashboard below collects data from marathons, tracks the number of finishers who meet their Boston … Read more

Explore Marathon Race Reports from Reddit

The dashboard below contains summaries of race reports from Reddit – specifically r/AdvancedRunning and r/Marathon_Training. It includes over 1,200 marathon race reports published since 2016. You can use the filters at the top to narrow down the list of race reports in the table on the left. Click on a specific race report in the … Read more

The Full Boston Marathon Cutoff Time Tracker Dataset

In November, I launched the Boston Marathon Cutoff Time Tracker to project the expected cutoff for the 2026 Boston Marathon. Since then, I’ve made regularly updates to incorporate additional race results as they become available. For those of you that are interested in making your own prediction and who are technically savvy, I’ve cleaned up … Read more

The History of the New York City Marathon Qualifying Times

Feature image by Martineric from Lille, France., CC BY-SA 2.0, via Wikimedia Commons Like Boston, London, and Chicago, the New York City Marathon offers a method of guaranteed entry for faster runners. While the other three races have recently tightened their standards, NYRR has not followed suit. At least, not yet. I’ve been working on … Read more