It's kinda funny...I ran 3 marathons and found them to be insanely difficult and sorta miserable, for me (I never could get beyond the 22 mile mark without horrid calf cramps). But riding across the state of MI (~147 miles) was challenging and fun. I have friends who run marathons on a regular basis and are totally in awe of my cross-state ride. I am in awe of people who run marathons with relative frequency and enjoy being on their feet for so many miles.

I love working up to century rides. Part of what I love is the sociability of it. I don't mind running alone for hours (with audiobooks on the iPod), but I really loathe riding for more than maybe 2 hours by myself. When I've done century rides they've all been with my hubby and friends...like a rolling party!