Judge Beth Labson Freeman on Tuesday said Talor Gooch, Hudson Swafford and Matt Jones were ‘well aware of the consequences’ of their actions.
The South Korean admitted to being ‘excited’ to pull off a ‘perfect’ shot.
A second-round score of 63 helped the world number one clinch a 13th major title.
The Philadelphia Phillies are in the thick of the National League Wild Card hunt but may be without slugger Kyle Schwarber in coming games.