I think that speed skiing should be included on the list, it is much more dangerous than Cyclocross anyway. Speed skiing is the fastest sport in the world which does not use a motor and racers go at speeds of up too 120mph, which is pretty much as fast as car racing. But, if you crash skiing you have no car to protect you and crashes can easily be fatal. If you are not convinced, please watch http://www.youtube.com/watch?v=q5ENIvqXpb0&feature=related it shows quite a few bad crashes and how easy it is to crash. Note that even helmets are not a big help, as Scott Macartney’s helmet is broken off with the force of his fall. Fortunatly, he did not die.
Thank you,
A 14 year old ski racer