I usually roller until I can't stand it anymore.. which isn't very long. If I'm feeling particularly masochistic I might make myself do 10 reps.. rare though. Sounds like a fun weekend of running! I'm planning 10 miles on Sunday, haven't decided on route just yet!
Susan, hoping for around 1:48, but with training as is has been (getting marrieded was time consuming) I'm not holding out too much hope. It would be great to pass some miles together, I love a good running chat.