The Kentucky High School Athletic Association issued a "Commissioner's Directive" telling schools to skip the handshake lines after games, the Lexington Herald-Leader reported Wednesday.
Although calling the custom "an obvious sign of sportsmanship and civility," the directive said "many incidents have occurred ... where fights and physical conflicts have broken out."
The directive cited more than two dozen fights at post-game ceremonies of Kentucky high school athletic events in the past three years.
Commissioner Julian Tackett downplayed the order, noting students can still shake hands, voluntarily, with other students.
"If you do this [shake hands], you're going to be accountable," Tackett explained.
The directive also noted school officials are responsible for keeping the peace after games, and game officials were advised to leave the field of play immediately after a contest concludes, the newspaper said.