Grand Prix of Portland at Portland International Raceway – 2018 – Friday, 8:30 a.m. – Open, Schedule, Thursday MRTI Test Notes

The Grand Prix of Portland officially begins on Friday with formal on-track activities. All of the Verizon IndyCar Series, Pro Mazda presented by Cooper Tires and Cooper Tires USF2000 Championship powered by Mazda tested on Thursday. The Indy Lights presented by Cooper Tires and Battery Tender Global MX-5 Cup presented by BFGoodrich Tires join those…

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