Track your rides and runs via your iPhone, Android or GPS device, analyze your performance, and compare with friends.
saw you and max pass by in front of me on NBP turning on sentinel. we all guessed a subway run. were we right? did max get a new bike?
We rode to the Amtrak station in DC! He's riding his Mom's old bike these days.
On Sentinel for ATM.
We are anxiously awaiting the blog post.