A friend of mine from a rottweiler board I belong to is running in it. Her name is Phyllis and her number is 20572. She said she starts mid-way back in the second wave.
This is her 3rd time running it. Her first was when she was in her 30's, the second was in '05 and she was in her 40's and running with a stress fracture in her foot.
She's a great person and her rottweiler Caine helps her train.