Should have taken it slower.

Went for Army Half this morning,and for half the journey it was pure torture. Pls dun ever not train and go for these events. I ended up walking for a good part as well cos I was also so fed up with people brushing and shoving from behind.The only consolation was that according to my timing,I finished within 3 hrs. But then I ended up having a very bad pull at the outside side of my left foot,and it gets so painful that I have to limp.What the heck. I wonder why I torture myself sometimes.