NBCSN began in 2009 .
NBCSN began a 10 - year deal to broadcast 13 IndyCar races per season , whereas the remaining races , including the Indianapolis 500 , would remain on ABC through 2018 .
Beginning in 2009 , NBCSN began a 10 - year deal to broadcast 13 IndyCar races per season , whereas the remaining races , including the Indianapolis 500 , would remain on ABC through 2018 .