The 2015 24H Series powered by Hankook was the first season of the 24H Series with drivers battling for championship points and titles. It also marked the first season with official FIA International Series’ status. Dutch agency Creventic, the organiser and promoter of the series, organises 24-hour and 12-hour races since 2006, but the first year with multiple races was 2008 and therefore 2008 is officially the first season of the 24H Series, so this is the eighth season of the series. The races were contested with GT3-spec cars, GT4-spec cars, sports cars, touring cars and 24H-Specials, like silhouette cars.
Calendar Round Event Circuit Date 1 24H Dubai Dubai Autodrome, Dubai, United Arab Emirates 8–10 January 2 12H Italy-Mugello Mugello Circuit, Scarperia e San Piero, Italy 13–14 March 3 12H Zandvoort Circuit Park Zandvoort, Zandvoort, Netherlands 29–30 May 4 24H Paul Ricard Paul Ricard Circuit, Le Castellet, France 10–12 July 5 24H Barcelona Circuit de Barcelona-Catalunya, Montmeló, Spain 4–6 September 6 12H Epilog Brno Brno Circuit, Brno, Czech Republic 9–10 October Source:
Entry list