Why is the Boston Marathon So Slow?

Boston Marathon Data Analysis, Part 2

Every dot on the right side of the line is a runner who failed to match their qualifying time
2018: Cold/Wet/Windy, 2017: Hot, 2016: Less Hot, 2015: Cold/Wet

Does Age and Gender Matter?

How slow are the runners who don’t hit their BQ?

Boston runners who don’t get a BQ on race day miss their qualifying time by about 35 minutes on average

What about the runners who are Actually trying?

Each year there are about 75 runners who miss a BQ by less than 10 seconds

2019 Prediction

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