Bib Numbers and Tracking Runners

Amid all the Patriot's Day hoopla here in Lexington, it'd be easy to forget it's also Marathon Monday. 

The 26.2 mile race kicks off today, and with more than 20,000 racers from Hopkinton to Boston, you don't want to miss your friends and family.

To track a runner -- like Lexington's or -- text RUNNER to 345678 and receive text message updates when they pass the the 10K, half-marathon, 30K, and finish line.

To find bib numbers, search by zip codes  on the Boston Athlectic Association website.