I was a swimmer for several years and dabbled in track. I swam the 1650(mile), it was one of my top races. I was also a "distance" runner. I had a decent mile time. But I never did any big marathons or races, except for XC skiing.
50k?!?
is that MILES???
And I thought I was hardcore for running fifteen...
I'll have to check out that Ultima Replenisher Iron Maiden, sounds like some good stuff.
@sparkchaser: That's still over a marathon!