I did a trail run today that I think is pretty close to the actual race course only 2.5 miles shorter. I think I can average a 12 minute mile if I take into account all of the spots where it is too steep to run and obstacles like fences and rivers, etc. Which would put me under an hour and a half. That's my goal anyway. We'll see, the low for the night before is 34° so I'm hoping it's a little warmer than that by 9am when the race starts.