The 2010 American Le Mans Series season was the 40th overall season for the IMSA GT Championship, and the twelfth as the American Le Mans Series presented by Tequila Patrón. It was also the first season in which the ALMS used a revised structure for its four classes, as well as the first year in a three-year sponsorship deal with Patrón. The season began with the 12 Hours of Sebring on March 20 and ended with the Petit Le Mans on October 2, completing nine total races.