The Marine Corps Marathon Kids Run on Oct. 26, the day prior to the MCM, is a one-mile just-for-fun running challenge for kids ages 5 to 12. Participants may select from six specific starting waves. Shuttles from Metro, post-event hospitality, activities, entertainment, games and mascots make this an unforgettable event. Registration is $10. All participants receive a shirt, access to the Camp Miles Family Fitness Festival and a medal at the finish line. marinemarathon.com.