Welcome to the official site of The Devil in the Dark 12 hour endurance race

Thunderbolt Raceway

The South Jersey Region, Northern New Jersey Region, and New Jersey Motorsports Park announce the ninth running of The Devil in the Dark 12 Hour endurance race on Thunderbolt Circuit at NJMP.  The 2018 edition will be held on Saturday, 27 October 2018 and will again race around the clock into the night (10:30 am to 10:30 pm).

Again this year, the Region is offering companion events – The Devil during the Day 6 Hour Endurance Race and The Devil during the Day 2 Hour Sprint Race.

Friday 1 February 2018

9:00 AM Registration for 12 Hour/6 hour opens on www.MotorsportReg.com

Friday 1 June 2018

Noon Earlybird Registration closes

Wednesday 1 August 2018

9:00 AM Registration for 2 hour opens on www.MotorsportReg.com

Monday 8 October 2018

5:00 PM Full Payment due for all entries

The event supps for The Devil in the Dark 2018 have been posted on the Region website.  Registration for this year’s event is open on motorsportreg.com.

There are very few changes in the 12 Hour regulations for 2018.  A small number of items highlighted in the recent endurance survey have been incorporated this year in an effort to broaden the competitor base.

A major change for this year’s race is the event date moving from its traditional April slot to the end of October.  It was the time of year most preferred in the survey and the one which creates the fewest conflicts with other events.

The only significant update to the car preparation rules this year is a pair of measures intended to encourage the use of street tires (TW 180+).  Competitors who use street tires in this year’s race will have the option to (a) run in the next lower Endurance Class or (b) run in the same Endurance Class with no wheel / tire size restrictions. Parity between street tires and DOT RComps was the single most requested change to the race format since it provides the opportunity for a substantial reduction in a team’s race budget.

The only change in car classifications is Spec Racers have been moved to their own class to eliminate an existing class inequity.  In conjunction with the separate classing, a new 6 Hour Spec Racer Endurance Challenge will be a major feature of The Devil during the Day 6 Hour race.

There are no changes to the event operations – driver eligibility, pit stops, fueling, etc.

Reminders – There will be an SCCA Test Day on Friday, 26 October for 12 Hour competitors and other closed wheel cars.

Racing around the clock again in 2018!


To enhance this year’s event, the Region distributed a survey this past summer for endurance participants to determine their interests in long distance racing.  A substantial number of responses were received – Thank you for those who participated in the survey.  These responses were overwhelmingly positive and contained several suggestions for improving the event.  The survey results are on the region website:

2017 Endurance Survey Results