Versus averaged 518,000 viewers (0.3 U.S. rating) for last Saturday night's Izod IndyCar Series Firestone 550k at Texas Motor Speedway from 8:42-11:04pm ET, marking the net's most-viewed race telecast since it began airing IndyCar races last season.
http://www.sportsbusinessdaily.com/article/139903

If you look closely at the little schedule you see where they got the gains. Texas started 1.5 hours earlier than last year. Also the two lowest rated races were shifted to ABC and replaced with brandnew events, which always score higher.
Still, let's hope this trend continues because they sure need this positive reporting.