This is a campaign started by Sean Astin! The idea is simple: Run 1st for yourself. Run 2nd for your family and friends. Run 3rd to benefit others!
Whether you're just getting started with jogging, or you're a multi-marathoner, join in by dedicating your runs (and your posts on LK) with the the tag: #Run3rd
If you want to print off the logo and run with it, you can get it here!