The PureMichigan400 on NBCSN earned a 1.96 overnight rating and averaged 3.16 million viewers on Sunday, up one percent from last year's 1.94 (when it ran two weekends later, in part because of the Summer Olympics in Rio de Janeiro).The Xfinity Series race from Mid-Ohio drew a 0.58 rating (916,000...

Changes in NASCAR's 2017 schedule brought the national series to Michigan and Gateway Motorsports Park this weekend, with Fox Sports 1 and Fox Sports 2 carrying the full slate as well as coverage of the 24 Hours of Le Mans.Ratings for the 24-hour race are not yet available.The Monster Energy...