Filipe Albuquerque will join ISR for the Total 24 Hours of Spa next month, the Portuguese driver has confirmed.
The Blancpain GT Series event will be his third 24-hour race in as many different classes this season.
He came second in the Rolex 24 at Daytona with Action Express Racing and will drive with United Autosports at the 24 Hours of Le Mans next weekend.
He did several GT races in the Audi R8 LMS last season and will race the Czech team’s No. 75 Audi at Spa this year.
It is not yet known who Albuquerque will drive alongside but the full-season Endurance Cup car is piloted by Filip Salaquarda, Frank Stippler and Clemens Schmid.
He finished 12th overall in last year’s race, competing in a Belgian Audi Club Team WRT entry with Rodrigo Baptista and Sergio Jimenez.