Full Fields Continue For 2026 IMSA WeatherTech Championship, Michelin Endurance Cup

IMSA continues to pack its paddocks and fields full of competitive cars as it prepares for the 2026 WeatherTech SportsCar Championship. IMSA President John Doonan revealed the full-season entry list for both the WeatherTech SportsCar Championship and IMSA Michelin Endurance Cup rounds as part of today’s annual State of the Sport presentation from Michelin Raceway Road Atlanta.

A total of 45 entries (11 GTP, 12 LMP2, 8 GTD PRO, 14 GTD) have been confirmed for the full-season WeatherTech Championship. That number grows to 54 cars (4 additional GTD PRO, 5 additional GTD) for the five Michelin Endurance Cup races. With further extra entries anticipated for the 64th Rolex 24 At Daytona, the 2026 season in January is expected to again feature a car count north of 60 cars. 

“Once again, the quality and quantity of cars and teams is on display for the 2026 IMSA WeatherTech SportsCar Championship season,” said IMSA President John Doonan. “All of our GTP, LMP2, GTD PRO and GTD classes are highly represented. We know teams have a choice of where to race, and we’re thankful they continue to race in IMSA to provide the best possible sports car racing for our fans.” 

A class-by-class breakdown is below:

Grand Touring Prototype (GTP)

The same 11 cars that have raced most full-season rounds in 2025 will provide consistency in GTP for 2026, with one key change. BMW M Team WRT will field the two BMW M Hybrid V8 entries next season.

Beyond those two BMWs, there will again be two entries from Porsche Penske Motorsport, Cadillac Wayne Taylor Racing, Acura Meyer Shank Racing w/Curb-Agajanian and single entries from Cadillac Whelen, Aston Martin THOR Team and JDC-Miller MotorSports. Aston Martin THOR Team’s Valkyrie will make its first Rolex 24 race start in 2026 after premiering in 2025 at the Mobil 1 Twelve Hours of Sebring.

Le Mans Prototype 2 (LMP2)

The LMP2 field remains strong with 12 full-season cars split among 11 teams. While United Autosports USA fields two cars, single entries come from CrowdStrike Racing by APR, Tower Motorsports, TDS Racing, Era Motorsport, Intersport Racing, Inter Europol Competition, Bryan Herta Autosport with PR1/Mathiasen, Team Tonis, Pratt Miller Motorsports and AO Racing.

Intersport and Bryan Herta Autosport are the two new entries to the class in 2026, and both have strong support from HMD Motorsports (Intersport) and multi-time IMSA LMP2 champions PR1/Mathiasen (Herta). Additionally, Team Tonis steps up to a full-time effort for 2026 after making its first WeatherTech Championship start at Road America.

Grand Touring Daytona Pro (GTD PRO)

The GTD PRO class features eight full-season entries and a further four Michelin Endurance Cup entries.

Corvette Racing by Pratt Miller Motorsports and Ford Multimatic Motorsports continue with two-car full-season efforts, joined by single entries apiece from Paul Miller Racing, Pfaff Motorsports, Vasser Sullivan Racing and AO Racing. Confirmed Michelin Endurance Cup entries come from Triarsi Competizione, Risi Competizione, 75 Express and Manthey Racing.

Manthey Racing joins IMSA with two entries split one car apiece between the WeatherTech Championship’s two GT classes, one GTD PRO and GTD, for the Michelin Endurance Cup races. Risi Competizione is back on its own, while its 2025 technical partner team DragonSpeed moves into GTD.

Grand Touring Daytona (GTD)

GTD boasts a 14-car full-season grid with five Michelin Endurance Cup entries.

The 14 full-season entries come from 14 teams: Vasser Sullivan Racing, 13 Motorsports, Riley, van der Steur Racing, Heart of Racing Team, Conquest Racing, DXDT Racing, Wayne Taylor Racing, Winward Racing, Gradient Racing, Inception Racing, DragonSpeed, Turner Motorsport and Wright Motorsports.

Additional entries come from Af Corse, Triarsi Competizione, Lone Star Racing, RS1 and Manthey Racing for the Michelin Endurance Cup. 

Riley moves into GTD from LMP2, 13 Motorsports (formerly AWA) has an updated team name, and RS1 steps up from IMSA Michelin Pilot Challenge competition.