Registration Now Open! Don’t miss the BTN Big 10K event in Chicago on Saturday, July 27, 2013. This year’s race will be televised on the Big Ten Network. Dress up in your favorite school colors and compete for your Big Ten team in the 10K race or 5K run/walk. Afterward, kick-off the college football season in style with thousands of Big Ten fans at the ultimate post-race FanFest & Tailgate party! Register early, the 2012 event sold out in only 64 days!