2018 IMSA Continental Tire Sports Car Challenge
And
2018 IMSA Prototype Challenge Presented By Mazda


I have already covered the dates for the main IMSA WeatherTech Sportscar Championship, the headline series among IMSA’s roster. This blog posts covers two of the main support series.
IMSA Continental Tire Sportscar Challenge:
A series of two-hour races for GT4, TCR and ST cars, with a couple of key venues hosting double-length four-hour enduros. GT4 cars within the Grand Sport (GS) class are the headliners, the ST class long providing fantastic racing and TCR promising more.
IMSA Prototype Challenge presented by Mazda:
A series of 1 hour 45 minute races for LMP3 and MPC cars. This series last year ran several 45 minute sprint races and introduced LMP3 as its top class. This year the cars can stretch their endurance legs.
Other Supports:
IMSA also sanctions many high profile one-make series including the Ferrari Challenge North America, Lamborghini Super Trofeo North America, Porsche Challenge USA and Porsche Challenge Canada. I do not offer calendars for these series but the dates are available to view at www.imsa.com.
Google/iCal Calendar links:
Conti Tire: ICAL -or- HTML
Prototype: ICAL -or- HTML
For more championships click here.
Continue reading “2018 Calendars: IMSA Supports”