Do Something B1G. Enter today for the BTN Big 10K event in Chicago on Saturday, July 26, 2014! With the Big Ten Conference’s expansion to 14 teams, this year’s race will be the biggest yet! The whole event will again be televised on the Big Ten Network. Represent your Big Ten allegiance by sporting your team’s colors in the 10K race or the 5K run/walk. Afterward, join thousands of fellow Big Ten fans and kick-off the college football season at the ultimate post-race Fan Fest & Tailgate party!