While sorting through the balls, it came to Henley's attention that he had accidentally used a ball other than his usual Titleist Pro V1x during the round. This is a violation of the PGA Tour's One Ball Rule, not a part of the Rules of Golf, but is usually only adopted for professional golf tournaments as well as high-level amateur events. The rule requires players to use the same ball throughout the round, meaning Henley violated the rule if he did not use the same Titleist Pro V1x model that he began the day with.