2010 American Le Mans Series season

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.

The senior class, LMP, the new combination class of the old LMP1 and LMP2 classes, saw defending LMP1 champions Patrón Highcroft Racing with defending champion driver David Brabham and new teammate Simon Pagenaud took a 23-point victory in their Honda over Porsche driver Klaus Graf. The other carry over category GT (the former GT2 class) Flying Lizard Motorsports Porsche duo of Patrick Long and Jörg Bergmeister successfully defended their class championship over Risi Competizione Ferrari driver Gianmaria Bruni. There was no GT1 category left in the series.

In the two spec-racer classes Scott Tucker of Level 5 Motorsports was the dominant driver in the LMP Challenge class, winning five of the nine races in the class' first full season. After debuting for half of the 2009 season, the new GT Challenge class saw the Black Swan Racing Porsche of Jeroen Bleekemolen and Tim Pappas claim the class victory.

The 2010 American Le Mans Series season features nine events, dropping the St. Petersburg round from 2009. Laguna Seca will no longer end the season but is instead moved to May and has been extended from four hours to six hours; this will allow the Petit Le Mans to conclude the season. The Utah Grand Prix at Miller Motorsports Park has also had its date pushed back to July due to the move by Laguna Seca. The Petit Le Mans will also form part of the inaugural Intercontinental Le Mans Cup for LMP1s.

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