Feature: Fans erupt during a race leading up to 138th Kentucky Oaks horse race at Churchill Downs in Louisville, Ky., on Friday, May 5, 2012. Fans from all sources wagered $39.9 million on the day of the Oaks, a 6.5-percent increase from the previous year and $226.9 million was wagered from all sources on the Kentucky Derby weekend. Jabin Botsford