Chappell Hill was the hardest ride I have done to date. Feeling strong out of the start, Made it to the 31 mile stop in one go. Quick break there, then about 10 minutes at the 43 mile stop. The next 12 were hard, and I had to stop for a second at the top of the last hill on 105 before the left turn to catch my breath and get the heart rate down. 10 minutes or so at the last rest stop at 55 miles, and the last 8 miles were hell. The big hill about 4 miles from the finish almost did me in. I had to walk the last third of it, first time I have ever walked a hill. Average dropped from almost 16 mph for the ride prior to that to 14.8 by the time I finished. I was GASSED by the end. Heck of a ride