The Colorado Buffaloes football program represents the University of Colorado Boulder in college football at the NCAA Division I FBS level. The team is currently a member of the Pacific-12 Conference, having previously been a charter member of the Big 12 Conference. Before joining the Big 12, they were members of the Big Eight Conference. The CU football team has played at Folsom Field since 1924. The Buffs all-time record is 675-463-36 through the finish of the 2012 season. The football program is 23rd on the all-time win list and 30th in all-time winning percentage. The football team also has the distinction of being the all-time NCAA leader in 4th down conversions. They are one of two NCAA Division I teams to complete a 5th down conversion. This was a result of a mistake by the officials and happened on a play displayed by chaincrew as the 4th down.