I think I am in the process of being roped into going to the Cincinnati area in a few weeks for 3 days of cyclocross racing. (If I was truly hard core, now is when I would mention that they are UCI races, which I think means nothing to a middle of the road Cat 3 cyclocross racer like myself, but it sure sounds bad ass.)
Here is a video of one of the elite races from last year. I'm pretty sure those guys are running faster over that first set of barriers (while carrying their bikes) than I could sprint on flat pavement without a bike. Dumb.