So I did my first bicycle race this weekend.

The watts graph was very varied, there was a lot of low watt (150-200w) and short bursts of +400w.

I would like to know how many bursts there where, and how long and what wattage they where on. Looking at the data in Strava I only see the 25w distribution or the maximum watt given a time (power curve).

I don't want to do this manually.

Are there any good tools for analysis of this sort?

  • Do you have a real power meter? If not, strava's info is a best guess based on your speed, and the grade according to a map. It takes no account of wind or temperature, and even ignores the elevation data from your own device.
    – Criggie
    Commented May 25, 2016 at 1:23

3 Answers 3


If you have a power meter than download something like Golden Cheetah to analyse the data. Otherwise, if you are just using Strava's predictive data - I wouldn't bother as it won't be accurate enough for detailed analysis.


You could try looking at your ride through Veloviewer which offer a lot of very nice ways to dig into your data.

  • Note this one isn't free (but is very good).
    – Holloway
    Commented May 22, 2015 at 9:45
  • You can use it for free, you just get a limited number of rides you can analyse. It's also quite cheap if you decide to pay for it.
    – zeFrenchy
    Commented May 22, 2015 at 9:49
  • I thought the free mode only gave you the first 20(?) rides on Strava. Good to get an idea for what it offers but not much use for recent rides. And yes, it's excellent value if you ride a lot.
    – Holloway
    Commented May 22, 2015 at 9:52
  • I started using it before the switch to subscription, then subscribed so I'm not sure if you get the first few or the last few with the free mode. It does such a good job displaying cumulated historical stats that it would be a shame to not subscribe. Note: I am in no way affiliated to Veloviewer, I just use it and like it :)
    – zeFrenchy
    Commented May 22, 2015 at 9:56

While power analysis is useful (it is after all what gives you speed), at this early stage reviewing and learning from the race is more important.

Look at it this way: you can be the strongest rider but not win due to poor tactical decisions.

You don't mention the kind of race, so tactical advice can be misdirected ...


  • were there surges, and did you stay with them?

  • did you do a turn at the front, and how did that work out?

  • were you blown off the back?

  • was there a sprint finish, and were you in it?

  • were you beaten for speed, or endurance, and how do you think they are connected?

  • was there a point where people were consistently passing you, and why was that?

  • was there a time when you seemed to be in the wrong gear, or felt that you'd topped out?

Do work on your power output, and on understanding and extending what you can produce and for how far. But learning racecraft so that you know when to push is equally important.

Also, check out posts by Rider_X on racing.

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