Quad Rock recap

I was anticipating a good day at Quad Rock and instead I flopped. I finished in 8:14:46. 186th out of 209 finishers, my poorest place at this race by a big margin. And I'd expected to match, if not exceed, my previous best. What explains this fiasco? My major problem was acute leg muscle cramping, but there were some minor issues as well. In the week before the race I did my mobility and core…