Michael Duffy is using Runkeeper to track their running, walking and biking activities and you should too!

Michael Duffy
Member since February 27, 2012


calories burned 75


calories burned 847


calories burned 38,194

Join Michael Duffy on Runkeeper!

Sign up and join Michael Duffy today!

Sign Up With Email

Download Runkeeper

Runkeeper on the Apple App Store Runkeeper on the Google Play Store