Until recently, the most important was PRCA, which crowns the World Champions at the National Finals Rodeo (NFR), held since 1985 at Las Vegas, Nevada, featuring the top fifteen money-winners in seven events. The athletes who have won the most money, including NFR earnings, in each event are the World's Champions. However, since 1992, Professional Bull Riders, Inc. (PBR) has drawn many top bull riders, and holds its own multimillion-dollar finals in Las Vegas prior to the NFR. Women's barrel racing is governed by the WPRA, and holds its finals along with the PRCA with the cowboys at the NFR.