Anna Marie Thompson of Vicksburg, riding Dat Baby’s an Eye Opener, competed at the National Barrel Horse Association Youth World Championships in Jackson and was one of 150 finalists out of 914 participating teens. She placed fourth in the 4D event. She has received more than $1,000 in cash and prizes. Anna Marie, 14, began participating with River Riders 4-H at age 8. The daughter of Charles and Denise Thompson, she attends Warren Central High School.