The Covenant Health Knoxville Marathon is an annual weekend-long event with a health and fitness expo and five different running events: 26.2-mile marathon, 13.1-mile half-marathon and four-person marathon relay. The Kids Run and 5K will be held Saturday, April 5, at 5:30 and 7 p.m., respectively. The race course, which shuts down roadways in the area, showcases many of Knoxville’s scenic neighborhoods. The event is free for spectators.