2015 United SportsCar Championship

The 2015 IMSA Tudor United SportsCar Championship (TUSC) season was the second season of the International Motor Sports Association's Tudor Championship, and the 45th overall season of the IMSA GT championship tracing its lineage to the 1971 IMSA season. It began January 24 with the 24 Hours of Daytona.

The class structure remained largely unchanged from 2014.

2015 will see the introduction of two awards for the top-finishing Pro-Am drivers in Prototype (P) and GT Le Mans (GTLM). The Jim Trueman Award will be given to the top finishing Pro-Am pairing in Prototype, while the Bob Akin Award will be for the top GTLM pairing. The top Pro-Am pairings from these classes at the end of the year will be given automatic entries to the 2016 24 Hours of Le Mans, with the Trueman award winner eligible for the LMP2 class, while the Akin Award winner would be for the LM GTE Am class. To be eligible for these awards, the drivers must at a minimum contest the North American Endurance Cup events.

The 2015 schedule was released on August 10, 2014 and features twelve rounds.

All entries use an Oreca FLM09 chassis powered by a Chevrolet LS3 6.2 L V8.

On June 3, 2014, it was announced that Ford would be limiting itself to factory teams for the 2015 season.

Bold indicates overall winner.

Championship points are awarded in each class at the finish of each event. Points are awarded based on finishing positions as shown in the chart below.

Points are awarded in each class at the finish of each event. Drivers must complete a minimum driving time (outlined to teams prior to each event) in order to score points. A driver does not score points if the minimum drive time is not met.

In addition, for each car credited with a race start, each driver nominated in that car also receives one additional “starting point.”

Team points are calculated in exactly the same way as driver points, using the point distribution chart and “starting points.” Each car entered is considered its own “team” regardless if it is a single entry or part of a two-car team.

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