How Much Will the Results of the 2024 Boston Marathon Impact the Cutoff Time for 2025?

Finishers at the 2024 Boston Marathon

After a record number of qualified applicants applied to run the Boston Marathon in 2024, there has been plenty of talk about what will happen in 2025. I made a prediction about the cut-off time here (7:03), and I added some additional data and context here. With the registration period under way, runners are eager … Read more

Boston Marathon Data Visualizations

In this post, you’ll find a collection of data visualizations related to the Boston Marathon. These data visualizations have all been created with Flourish. It’s a website where you can create and share amazing data visualizations. I’ve included the links to the visualizations below. Feel free to use them in your own work, but please … Read more

Age Grade Calculator for Marathon Performances – With Alternatives

An old man running a marathon. An age grade calculator would help him understand his performance.

To use the calculator below, enter the runner’s age in years, select their gender, and enter their finish time in the format H:M:S (i.e. 3:45:42). The results will include: Continue reading below for some additional context. Note: The underlying tables are only calculated for runners up to age 79. This will not return useful data … Read more