The first event of its kind, a fun 5k that benefits local children’s charities. Decorate a stroller, dress up the kids and “run like a mom or a dad.” This race is less about clocking time and more about getting out of the house, being active with kids and socializing with other active parents. Afterward, drop the kids off with their new friends at the free Stroller Run Kid’s Camp (Child care professionals provided by Care.com), and enjoy some shopping and a beverage at the Mom Expo. The run is on Aug. 11, 10 a.m., at National Harbor, 165 Waterfront St., Oxon Hill, MD. Read more and register at thestrollerrun.com.