Portland International Raceway

PORTLAND, Ore. -- Catch all of today's NTT IndyCar Series action from Portland International Raceway. The Grand Prix of Portland is the penultimate race of the 17-race season.

Live timing and scoring, accompanied by Advance Auto Parts INDYCAR Radio Network commentary, is available on RaceControl.IndyCar.com.

The action on NBC begins with live race coverage at 3 p.m. ET (noon PT local) with the green flag at approximately 3:45 p.m. Live radio broadcasts will be available on the Advance Auto Parts INDYCAR Radio Network and SiriusXM Satellite Radio (XM 205, Sirius 98, Internet/App 970).

The season ends Sept. 22 in California with the Firestone Grand Prix of Monterey at WeatherTech Raceway Laguna Seca.