Together with the Belgian Laurens Vanthoor, Frijns had clinched three victories in the 2015 season at Brands Hatch, Zolder and Portimão. As Vanthoor was forced to take a break due to an injury sustained in an accident, Frijns competed in the season finale at Zandvoort in the Netherlands together with the German Christopher Mies. Following a spin in Saturday’s qualifying race, the duo had started the main race from position 14 on the grid and, with a strong recovery, advanced to second place. With that, Frijns won the title in the higher-level Blancpain GT Series, which is calculated from the results in the sprint and the endurance championships. In the Blancpain Sprint Series, Frijns finished the season as the runner-up in the standings. The Belgian Audi Club Team WRT remained unbeaten in the most important Pan-European GT3 series. The squad of Vincent Vosse had won the teams’ championships in all three series early.