Are you still looking for a team member? I am a veteran of ten PTC relays between 1993 and 2004. All but one on very competitive teams. (One of my teams still holds a course record.) I just want to do it one more time. I will be 74 by race day. I am in the best shape that I have been in for ten years, having just lost 50 pounds. I don't think that I can do 12 minute miles anymore, but probably 13s. (I did 11s in my prime.) I am training at 13-14. Since i see you haven't had any replies, I suspect that there aren't too many women over 50 that can do 12 minute miles that aren't already on a team.