? In 2005, 13,222 teams competed at Baton Rouge, the most ever for an Open Championships outside Nevada. In 2012, 11,794 teams competed in Baton Rouge, a total that has not been beaten since. And for the 2025 Open Championships that opened Saturday and runs through July 28 in Baton Rouge, 11,600 teams have registered, USBC said in this news release. That would make 2025 the biggest tournament... subscribe to read more. Social Media: