by Matt Fitzgerald, Published Aug. 18, 2010, Updated Sep. 8, 2010 at 2:32 PM UTC
Q. Matt and Mario, I am training for the NYC Marathon. I have quite a bit of traveling coming up and I need to keep up my training. What
Start your FREE subscription to Competitor Digital today!
Get our monthly digital magazine, weekly running content & exclusive offers delivered to your inbox.
© 2014 Competitor Group Inc. All Rights Reserved