![]() The following chart takes a closer look at the relationship between finish time and weekly mileage, with the training data from the 1,000 athletes rendered as a scatter chart. You can see a gradual increase in weekly mileage for the first 13 weeks, followed by a 3 week taper (a period of reduced mileage in preparation for the race). The above chart isn’t terribly surprising, with the faster finishers putting in more miles on a weekly basis. Week 17 is the week of the marathon, and the mileage plotted in that week excludes the marathon itself. The following chart shows the average weekly mileage of athletes grouped by finish time: The data in these 100,000 runs has allowed me to see how they trained in the weeks running up to the race - and the results are fascinating! I’ve learnt that people put in ~30% less mileage than popular plans suggest, Sunday mornings are a firm favourite for long runs, and that Saturday morning parkruns are very popular! Weekly mileage Since then I have downloaded every single run recorded in the 17 weeks leading up to the marathon for 1,000 of these athletes. Last month I downloaded the race data for the 7,190 athletes who recorded their London Marathon on Strava, comparing pacing, split times and generally finding interesting patterns in the race data.
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