NASCAR Sprint Cup Series MyAFibRisk.com 400 Chicagoland Speedway Distance: 400.5 miles (267 laps) Sunday, Sept. 20 3 p.m. (ET) TV: NBCSN, 2:30 p.m. (ET) Radio: MRN, SiriusXM Ch. 90 NASCAR XFINITY Series Furious 7 300 Chicagoland Speedway Distance: 300 miles…