If they can do it, why can't I?

Still chuffed to bits with my marathon running hubby, we spent time tonight on the computer looking at the race results and times of him and others.

I began pondering the efforts of women roughly my age, who took 5 or 6 hours to complete the San Francisco Marathon. Hmmm. Can you tell where this is heading?

A 6 hour marathon is equivalent to a pace of more than 13 minutes per mile. Even on my slowest days, I rarely take more than 11 minutes for a mile. I'd just need to practice a bit, to do that 26 times. Or, at my current level, I could pretty much run a mile, walk for 3 minutes, and repeat.

I've never thought of myself as a competitive kind of person, and I've been heard to say often enough that I've no wish to run a marathon. But if they can do it, why can't I?