Two friends are on a mission to run a 5K in every town in Massachusetts

Beginning on Halloween 2021, Karen Pajer of Leicester and Scott Schaeffer-Duffy of Worcester have been on a mission to run a 5K in each of Massachusetts' 351 towns, all in the course of 351 days. With less than 100 runs left, they share their favorite runs, their hardest runs, and how they've learned to appreciate the commonwealth in a new way.