How to Use Data to Improve Your Marathon Time

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How to use Data to improve your Marathon Time

Olympic gold medalist Alex Yee ran his first London Marathon and later compared Coros watch data with Eliud Kipchoge.

Alex Yee's first ever marathon data shows an amazing finish time of 2:11:08, but it also showed that the final miles were testing. The response from the first man to go under 2hours in a marathon?

"Yes, it's normal. This is your debut. So next time, you know you really learn from it."

That is what the data can be all about, learning, improving, always striving for better.

Eluid goes onto say “The data can tell a story of how we like to run it. Where you go fast and where you go slow and where you maintain the skills. If you are struggling a little bit, actually at the end of it, then the data can show you what you are struggling with."

So how do you get the most out of your marathon data?

  1. Effort over time: Use Zone Distribution

Using your heart rate and Pace Zones you can see your intensity shift throughout the race. A well-paced race maintains aerobic power, only pushing into the Lactate Threshold Zone towards the end.

       2. Learn from every split

Zoom in on smaller segments, each mile, or every 5k, if your pace dropped but heart rate was maintained you are seeing fatigue, find the tipping point to learn for future training runs.

       3. Focus on form: Cadance and stride length

With Coros you can view your cadence and stride length breakdowns in your active summary, if you spot a steady drop this can cue you up to work on your strength in future training sessions.

A gradual drop in stride length could be muscular fatigue, while a decline in cadence may be that you are overstriding or struggling with turnover.

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