Since 2010, Avenatti has driven in approximately 33 sportscar races, including various American Le Mans Series, FIA World Endurance Championship, Porsche Supercup and United SportsCar Championship races in the United States and in Europe. These races have included the 24 Hours of Daytona, 12 Hours of Sebring, 2012 Petit Le Mans, and the Long Beach Grand Prix. Avenatti had been planning to race the 2013 24 Hours of Le Mans, but replaced himself with Patrick Long a few weeks before the event because scheduling conflicts had arisen with his other business interests. At the 2015 24 Hours of Le Mans, Avenatti teamed up with Saudi Prince Abdulaziz bin Turki Al Saud and Polish driver Jakub "Kuba" Giermaziak in the No. 66 JMW Motorsport Ferrari 458 Italia. The team placed seventh in its class.