What Races Will Be Impacted by the Boston Marathon’s New Downhill Results Index?

This week, the Boston Athletic Association dropped a bombshell of an announcement – that qualifying times from downhill marathons will be subject to an adjustment starting with the 2027 Boston Marathon. As the competition to get into Boston has become more intense, runners’ feelings about downhill marathons have become equally intense. Steep downhill races – … 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

How Accurate Was the Boston Marathon Cutoff Time Tracker In the Past?

Feature photo courtesy of erp3d on reddit A question I frequently get asked is, “How accurate was the Boston Marathon Cutoff Time Tracker in the past?” It’s impossible to answer that question directly, because the tracker itself is new this year. This is the first time that I’ve collected the results and made a continuing … 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