There will be an additional twice-around-the-clock endurance round on this year’s 24H Series powered by Hankook calendar, with officials from Creventic having announced that it has extended the Epilog Brno round to a 24-hour race.

Originally planned for a 12-hour race, the event in the Czech Republic remains on the Oct. 14-16 weekend, and with the same noon start time on Oct. 15, but extending through the following day.

The announcement was made at Paul Ricard, site of this weekend’s fifth round of the 24H Series season, and brings the number of 24-hour races in this year’s schedule to four, after Dubai, Paul Ricard and Barcelona.

“When we announced the calendar for this year, we already included the possibility of upgrading our race at Brno to a duration of 24 hours,” said Creventic’s Helen Roukens.

“This is a unique opportunity, because not too many circuits offer the possibility to run a 24-hour race.

“The step was made following requests from many drivers, who wanted to race at Brno for 24 hours, and a survey among our regularly participating teams led to a majority of positive answers.”

Roukens said teams who have already registered for the race will not be faced with increased entry fees, with a revised entry fee — an average between the fee for a 12 and 24-hour race, will be offered for any additional entries.