There's a way to figure out both inside and outside miles combined on the BJ. There's also a stat for all outside miles.

Look at some of the BJ forums. I'm on team Mahi Mahi- Furnace Creek 508 race (crewing). Also Sadie Kate started a thread on Jelly Belly which is pretty hilarious. Scroll through- this group is VERY supportive as is the Women's group here. I appreciate that. Also can only talk about bike related subjects so it keeps the riff raff out.

Seeing my miles against others is a definite challenge for me. It's fun- sometimes someone will be .4 mile ahead. So, for sure I'll catch up the next day unless....that's the other fun part. Never know when someone is going to pass you casue they did a big ride the other day and just posted it!!!