Due to the 2013 Moore tornado, just outside the Oklahoma City site of the Tournament, the Big 12 announced a delay in the start of the event and a change in format from the planned double-elimination tournament.
Major League Baseball | baseball | 2013 ATP Challenger Tour | Big Finish Productions | 2013 | Round-robin tournament | Texas Rangers (baseball) | Big Brother | 2013 ATP World Tour | minor league baseball | United Nations Conference on Trade and Development | National Baseball Hall of Fame and Museum | Big Ten Conference | 2013 Southeast Asian Games | The Big Bang Theory | 2013 ITF Women's Circuit | Big Dipper | manager (baseball) | Reel Big Fish | Southeastern Conference | Big Ben | 1962 in baseball | tournament | The Big Lebowski | 2013 WTA Tour | 2005 in baseball | 2013 Island Games | Paris Peace Conference, 1919 | Paris Peace Conference | Big Finish |