Here it is from here:
http://www.racer.com/indycar/item/14...dycar-calendar
The 2018 Verizon IndyCar Series race schedule, by venue, is as follows:
March 11 – Streets of St. Petersburg
April 7 – Phoenix Raceway
April 15 – Streets of Long Beach
April 22 – Barber Motorsports Park
May 12 – Indianapolis Motor Speedway road course
May 27 – Indianapolis 500
June 2-3 – Raceway at Belle Isle Park
June 9 – Texas Motor Speedway
June 24 – Road America
July 8 – Iowa Speedway
July 15 – Streets of Toronto
July 29 – Mid-Ohio Sports Car Course
Aug. 19 – Pocono Raceway
Aug. 25 – Gateway Motorsports Park
Sept. 2 – Portland International Raceway
Sept. 16 – Sonoma Raceway
Glad to see PIR back but hate to see the Glen go.