"How many more miles do we have?" I ask.

I'm at the final aid station of the 2015 Park City Point-2-Point (PCP2P) mountain bike race, an off-road cycling epic unlike any other in the world.

"Does 10 miles sound like a lot?" the race volunteer inquires as a response.

I think about it for a moment. This means I have about an hour to go given my pace. That is, for the past eight hours, I've been averaging about 9 mph. Indeed, since the race began at 7 a.m., I've covered 70 miles of Park City, Utah's, finest singletrack trails, climbing and descending more than 10,000 vertical feet at elevations ranging from 7,000 to 9,100 feet above sea level.To read the full article, please click here.