mtbdarby,

I'm no expert, and you've certainly been riding longer than I have, but based on the 3-day mileage you put in at your event last year, I would bet you can be ready for a century. I did my first century yesterday, and I didn't follow the 6 days per week of cycling schedules either. I rode long and hard on the weekends that I had free. During the week, when I could ride at lunch, I went hard. Like massive hill repeats at near MHR. My longest training ride was 63 miles. On the day, I stopped at every rest stop to refill my water bottles, use the bathroom, and have a gel and some blocks. I ate blocks on the bike, too. I think if you make the most out of the training time you have available, your goal is well within reach. Good luck and keep us posted!

Alex