Pat, 
Congratulations!   Real achievement!   I will do my 30th Bolder Boulder 10km this year, but 
I ain't going for the money, just survival.  I am real careful riding, walking, and running anymore, always carry the id with insurance and contact info😀!
Marc, he must have taken a heck of a wallop to the head in that crash!  We don't heal fast at our age.
Hawkdancer