For the centenary of Bentley in 2019, Jules Gounon was engaged in Blancpain GT Series Endurance Cup and Intercontinental GT Challenge with Steven Kane and Jordan Pepper. After two complicated races, the Frenchman set the fastest time of the qualifying session in Paul Ricard, faster than his teammates and than his rivals. Battling with the Ferrari 488 GT3 of Miguel Molina, Jules Gounon and Bentley won their first race of the year and also their first win since the introduction of their new car back in 2018. Two weeks later, Jules Gounon participated in his first 24 Hours of Le Mans with Risi Competizione, teaming up with Oliver Jarvis and Pipo Derani on a Ferrari 488 GTE Evo. Qualified 17th in the category LMGTE Pro, they finished 11th in this category and 40th overall, despite a mechanical problem in the last hours of the race.