CHICAGO — The Big Ten Conference would do away with its championship game if college football adopts a 24-team playoff. He conceded a 24-team College Football Playoff would mean no Big Ten championship game, which has been held annually in Indianapolis since 2011. “Yeah, I think it’s pretty much we won’t be playing a championship game if we go to 24,” he said. The SEC was the first major conference to adopt a league championship game and held its first one in 1992. Riley said the lack of a conference championship game would make this more like the NFL model, where people simply pay more attention to the national championship than anything else.