A couple of my more athletic friends are doing a friendly triathalon, and they've talked me into playing along. Except while they do an Olympic length tri, I'll be doing a micro mini one, with 1/8 of a mile swimming (we'll all be in a pool where that's 4 laps), 15 miles biking (I think we're all riding road bikes), and about 3km running (along a trail; my turnback point is an underpass). I expect to finish in about the same time they do.
If I can't walk on Friday...
I haven't run in a LONG time. I do bike fairly regularly and swim sometimes. So I expect I'll be walking during the run part.
Wish me survival!