On your mark, get set, go! Register for the W-Day 5K Cat Challenge at Westchester Country Day School on Saturday, May 7. Participation is open to runners of all ages. The events include a 5K Run/Walk, a 1-Mile Fun Run, a Little Cat Lap (ages 3 and 4), and a 50-Yard Diaper Dash (ages 2 and under). Also known as "The Hobey," the 16th annual 5K event, presented by Sweet Old Bill’s and Splashworks, is held in memory of Hobey Ragan, devoted father and dedicated Wildcat fan. Proceeds benefit WCDS Athletics and the American Lung Association.