Healthy Kids Running Series - McGuire Air Force Base, NJ Healthy Kids Running Series is a five (5) week running program in the spring and fall for kids Pre-K through 8th grade. Each HKRS Series takes place once a week and offers age appropriate running events including the 50 & 75 yard dashes, the 1/4 mile, the 1/2 mile and the 1 mile run. Kids compete each week for a chance to earn points. At the end of the Series the boys and girls who accumulate the most points in their respective distances are awarded trophies. All participants receive a medal on Week 5!