Helen Wyman’s power data shows how hard cyclocross racing really is (video)

Helen Wyman has released her data from round five of the World Cup, which was on the same course as the Cyclocross World Championships which take place this weekend, January 30-31
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Ahead of the Cyclocross World Championships this weekend, British medal contender Helen Wyman has released her Stages power data from round five of the UCI World Cup, which used the same Heusden-Zolder course.

The bar-mounted camera footage was filmed by Yu Takenouki, and the video above incudes an overlay of Wyman’s data from the race on December 26.

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In that race Wyman finished 12th, so the numbers may need to be even higher if she is to finish on the podium on Saturday.

HelenWymanZolderData Stages

Helen Wyman’s Zolder World Cup power data. Image: HelenWyman.com / Stages

James Spragg, a member of Wyman’s coaching team, explained on her website what the numbers mean.

“The first thing to notice is the amazing number of power spikes per lap. The dotted line represents Helen’s FTP [Functional Threshold Power], her power rises above this on 28 separate occasions within the 8-43 it took her to complete this lap. That’s on average a sprint every 18 seconds.

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“The women’s race was, in total, 5 laps… that makes for a total of 140 sprints in 45mins!” Spragg continued.

He finished by saying, “all of this sprinting makes for an extremely variable effort – the VI rating (the difference between average and normalised power) for this lap is 1.2 – for comparison the VI for time trial would be 1.05.”

The events will be live streamed by the UCI, so those unable to make the trip over to the Continent can catch all the action as it happens.