I haven't been on POTN in a bit, but after seeing all the Brands Hatch shots from last Sunday, i thought i'd throw mine in the mix too... 
You'll have to forgive the borders, it's become a habbit.
I was using my 350D, and 400mm f5.6. Not the ideal lens for sport (I usually shoot wildlife/birds), i lost count of the amount of times i wished i had the 100-400 so i could pull out a bit. 
These two are 'Could've been' shots; if only i'd been on the other side of the fence.







