No, Colorado didn’t have a primary. This is a dangerous comparison if you want to compare polling data. The problem with comparing the Colorado intrade numbers is that they all used the same polling data, which pointed to likely voters. That’s much different than caucus goers, which turn out in far less numbers and require more time to fulfill the obligations.
Colorado didn’t vote, they caucused. Time will tell, but I suspect the polling numbers are accurate, and they were in Colorado too, but the caucus commitments skewed things.