it is one of the bad things about flag to flag racing. I can see why he and 5 or 6 other riders did it. There was some heavy rain in spots and the pace dropped way off, Pecco was slowing so much the entire field packed up on him.
If the rain had continued - even if just for a few laps - it would of been failed as a brilliant move to come in first.
It is really a gamble when conditions are like that. I feel bad for all the riders who went in.
But it can make for some really exciting racing - remember when BB stayed out and everyone else swapped bikes and he just barely took the win..... that was amazing.