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IMSA Sportscar Endurance Challenge
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IMSA Sportscar Endurance Challenge

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Season Calendar

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IMSA Sportscar Endurance Challenge - 2026 Season 4

2026 · S4 · 6 WEEKS

SCORING:BEST 4 OF 6
ACTIVE SESSION

W3/6

SEASON PROGRESS33%
1
Silverstone CircuitRESTRICTED CARS

Grand Prix

⛅66°F
W. START
Sep 19
DETAILS
2
Brands Hatch CircuitRESTRICTED CARS

Grand Prix

⛅67°F
W. START
Oct 3
DETAILS
3
Summit Point RacewayRESTRICTED CARS

Summit Point Raceway

⛅66°F
W. START
Oct 17
DETAILS
4
Circuit ZolderRESTRICTED CARS

Alternate

⛅68°F
W. START
Oct 31
DETAILS
5
Mobility Resort MotegiRESTRICTED CARS

Grand Prix

⛅67°F
W. START
Nov 14
DETAILS
6
Autódromo José Carlos PaceRESTRICTED CARS

Grand Prix

⛅81°F
W. START
Nov 28
DETAILS

Allowed Cars

7 cars
GT4 Class
BMW M4 G82 GT4 Evo
BMW M4 G82 GT4 EvoMARKET
Ford Mustang GT4
Ford Mustang GT4MARKET
Porsche 718 Cayman GT4 Clubsport MR
Porsche 718 Cayman GT4 Clubsport MRMARKET
Mercedes-AMG GT4
Mercedes-AMG GT4MARKET
McLaren 570S GT4
McLaren 570S GT4MARKET
Aston Martin Vantage GT4
Aston Martin Vantage GT4MARKET

Eligibility

REQUIRED LICENSE
C

Log in to verify if you have the required license and content to compete in this series.

Championship

Competition Rules

Duration

120 m

Fast Repairs

None

Start Type

Rolling

DSQ Limit

25x

DT Penalty

17x

Open Practice

120m

GWC Limit

None

Lucky Dog

Disabled

Driver Changes

Solo

Tire Types

Standard

Participation

Starters

6–40

Min – Max drivers per race session

Driver Changes

Solo

Single driver only

Setup Format

Open

Custom setups allowed

Categorization

Multiclass

Multiple car classes

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