IndyCar has confirmed its calendar for 2018 with two significant changes. Watkins Glen has gone but Portland has returned in its place. Despite rumours of a race at the Autodromo Hermanos Rodriguez in Mexico City, none has materialised:
March 11th – St Petersburg
April 7th – Phoenix
April 15th – Long Beach
April 22nd – Barber Motorsports Park
May 12th – Indianapolis GP
May 27th – Indianapolis 500
June 2nd – Detroit race one
June 3rd – Detroit race two
June 9th – Texas Motor Speedway
June 24th – Road America
July 8th – Iowa
July 15th – Toronto
July 29th – Mid-Ohio
August 19th – Pocono
August 25th – Gateway
September 2nd – Portland
September 16th – Sonoma