The City of Chesterfield’s Annual Shamrock Run will take place on March 14, 2026, at the Chesterfield Valley Athletic Complex. The race will consist of a 5K or 10K race, as well as a Fun Run Race for kids! The 5k and 10K will begin at 8:30am and the Fun Run will begin at 10am. Each participant will receive a shirt if registered by February 22. First place in age category will receive a medal for 5K and 10K. Fun Run racers are all guaranteed medals.