A South Dakota high school golfer cost herself and her team a state championship when she self-reported an error she'd made on her scorecard.

Sioux Falls Christian won the Class A girls state golf tournament on June 5, with senior Kate Wynja finishing first overall for the second year in a row. Wynja, who finished several shots ahead, realized she'd submitted an incorrect scorecard, crediting herself with a 4 on No. 18 instead of a 5.