Well, today I did a century. It was a pretty flat century. Nonetheless, I could barely average 15 MPH riding time. I have been sick a lot this winter. I hadn't been on the bike since Feb 2nd and yesterday I went and did a pretty intense (for me) hill climb ride. As a result, when I started the century I literally was already on empty.
Fortunately, Kevin wouldn't let me quit. Thank goodness he wasn't out to make any set time/speed, he just wanted to do his 100 miles.
One mistake I made was when we stopped for lunch, I had a sandwich and some fries but didn't get anything to drink. I wound up being really thirsty on the ride back. I should have chugged down a big soda, the sugar & caffeine would have helped too.
I guess it's good that I didn't quit and finished the century. But I certainly tried to quit.