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Sports · IPTV Australia

IMSA SportsCar Championship: reading four racing classes

The IMSA WeatherTech SportsCar Championship combines prototype and GT categories. Its GTP, LMP2, GTD PRO and GTD classifications need to be read separately.

IMSA SportsCar Championship

What the competition is

Cars from different technical and driver-category structures can share a race. GTP and LMP2 are prototype categories, while GTD PRO and GTD use GT-based cars with distinct participation rules. Similar-looking GT cars therefore do not necessarily compete for the same class result. Not every event must contain every championship category; the entry list establishes the actual field.

Following the competition

Read the class identifier alongside a car number before interpreting a leaderboard. An overall position can obscure a close GTD battle, while a class leader may be several laps behind the overall race leader. A useful watchlist keeps the event, session and category, and distinguishes race duration from the scheduled length of a coverage segment.

DetailWhy it matters
GTPA prototype class.
LMP2A separate prototype category.
GTD PRO and GTDGT-based classes with different participation rules.
Entry listEstablishes which classes actually compete at the event.

Questions about this guide

Does every car on screen compete for the same class trophy?

No. The field contains separate classifications.

Should class positions be inferred from overall position alone?

No. Read the car’s category and its class leaderboard.

Sources and further reading

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