Buffalo Soldier said:
The only mistake was letting Cancellara pushing him to the front for the sprint. And that's experience.
This topic is only recently bumped.
I want to correct one misconception in this topic: Vanmarcke had 1 crash and 2 flats. But he also had a cracked high-rim carbon front wheel and he had to open up his front brake so he couldn't use his brake anymore in the finale. You can even see him opening the brake with an allen key in the race, but I won't search for that moment in a 3hr youtube movie.
This has probably influenced his tactics, in a way that it was more advantageous for him to keep the pace high and steady to the velodrome without thinking about any tactics that would have to make him pokering / braking / accelerating, but worse, once on the track, he could not avoid being pushed to the front by Cancellara. He HAD to take the front or he would have fallen in the curve before the final round.
You can see this on youtube: he tried to stay behind Cancellara using only his rear brake, but of course this was not enough to slow down so he decided to take the front:
https://www.youtube.com/watch?feature=player_detailpage&v=tUFwms7f4wg#t=237
you can hear this in his interview afterwards (around 2 minutes, in Dutch):
http://www.sporza.be/cm/sporza/vide...ode_20130407?playlist=7.40455&video=1.1598077
So he had to go first in the last round because he didn't have braking power. If he did have the brake working, he would have started in second position, but I still think Cancellara had a little more dash anyway. He could have waited a little more in the front to start the sprint, but he was a little too confident with 150 mtrs to go.