Experience a speedy downhill mile through Andover, starting at the top of Summer Street and finishing in the Town Park after a quick turn at Whittier Street—then stick around for the Rainbow Day Party with a Purpose. Whether you run, jog, or walk, you'll be supporting the Rainbow Fund's mission to help Massachusetts kids stay active by building bike parks and expanding community programs inspired by Sidney Mae Olson's legacy. Four staggered waves launch between 9:00-9:06 AM based on your estimated finish time, with a special wave for walkers, stroller runners, and dogs—just park at the finish and use the walk to the start as your warmup!