Anyway, all this to say that if you do come in last, it doesn't matter. Just smile through it, you will be an inspiration for many, unlike what you might imagine... So go for it!!
Might I add... that I have noticed that the LAST person typically gets more cheers than anyone else... other than first.
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"