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Men’s Individual Sprint
Individual sprints are great fun to watch... once you figure out what's going on! Television commentators usually talk about a "cat and mouse game", which implies that one of the competitors is a mouse. Really, it's more like a "wolf on wolf" game, with each rider marking out their territory, stalking the other, and attacking at the end.

First, the riders are seeded according to their flying 200m time. They are allowed to ride around the top of the track for a couple of laps, and then they make a huge effort and dive down from the top of the track to the black line (the shortest distance around the track) for 200m.

In the match sprint rounds, the riders start out slowly on their first of 3 laps, trying to force their competitor into a position they don't like, and trying to protect their own strongest position. This requires a good knowledge of your competitor's strengths, weaknesses, personality, and even which leg they like to have in front when they start an acceleration.

The riders will go very slowly around the track for as long as possible, to save energy for the final sprint. They might go up to the top of the track, to try to ‘pin' their opponent against the railing, or they might even come to a complete stop. This is allowed for a short time, as they try to force their opponent to make a move, but if the "track stand" goes on for too long the Commissaire will stop the race and restart it.

As they get into the final part of the race, one of the riders will try to ‘jump' away from the other, when they feel they've got a good position and can sustain an effort to the finish. Some riders can hold a sprint for longer than others, and will start early to try to make their opponent fatigue before the finish. Others have an insanely fast but shorter sprint, and will try to hold off on making an effort as long as possible.

What kind of speeds and powers do these riders hit? Let's take a look at a file from a rider who won a World Cup in this event (although this file is from a different World Cup).

First, let's look at the flying 200m qualification ride:

  • From the start of the big effort until the finish line took about 22 seconds, with an average power of 1184W over that time
  • Peak power reached was 1894W, 3.5 seconds before the start of the 200m
  • Average power during the 200m was 975W, at an average speed of 70.95 km/hr
  • Average cadence for the roughly 10.5 second 200m was 148rpm

You can see that the biggest effort was made just before the beginning of the 200m, to get the speed and cadence up to their peak before the effort began

wc-sprint-men-flying-200click on graph to enlarge

In the match sprints, the profile looks quite different depending on what tactics were used, however there is always a sprint for the finish. Let's have a look at one of the match sprints from the same day as the qualification ride [Marker 8]:
  • The speed for about the first 100m was around 10km/hr or less... very slow
  • The speed went up a bit for the next 100m to about 25 km/hr, after an effort of 575W
  • The rider slowed right down again, and then there was a larger but still intermittent effort that took the speed up to about 55 km/hr
  • The rider ‘jumped' from there, making a big effort of 1781W (still not maximal for this rider), taking the speed up to 67km/hr and the cadence up to about 148rpm
  • The final burst happened about 100m from the finish line, with the rider hitting 1898W and 70.7 km/hr.

The powers and speeds these riders hit are incredible, but what is most impressive is their control over their efforts and their bike. Track sprinters have some of the best bike skills around, and usually maintain control of their bike even when there is contact with the other rider at speeds around 70km/hr.

wc-sprint-men-raceclick on graph to enlarge

wc-sprint-men-race-final-40