The 2018 GoPro Grand Prix of Sonoma was the 17th and final round of the 2018 IndyCar Series season. The race was held on September 16 at Sonoma Raceway in Sonoma, California. 2014 Indy 500 winner Ryan Hunter-Reay qualified on pole position, and took victory in the 85-lap race.
Results
Qualifying Race Notes: Points include 1 point for leading at least 1 lap during a race, an additional 2 points for leading the most race laps, and 1 point for Pole Position. == Championship standings after the race ==
Championship standings after the race
;Drivers' Championship standings ;Manufacturer standings • Note: Only the top five positions are included. == References ==