Cramp ?

Sitting in the bath after the event in Somerset today getting rid of all the grime I was shocked to find this bruising on my inner thigh. I have had some tenderness since racing  last weekend but I had no idea I had done anything like this and have been training on it all week! Probably a bit late for some ice ?
Cath thinks its probably a tear of one of the muscles in my inner thigh that I got when I was trying to stretch out the cramp at the Sherwood pines enduro. Possibly explains my poor last two lap times a little?