The officially released 2026 IMSA WeatherTech SportsCar Championship entry list features a total of 45 full-season entries: 11 GTP, 12 LMP2, 8 GTD PRO and 14 GTD.
The GTP class remains the pinnacle of the championship with 11 entries representing five major manufacturers: Porsche, Cadillac, BMW, Acura, and Aston Martin.
Notably, BMW has shifted its service and operational duties for its factory M Hybrid V8 cars to Team WRT, marking a significant change in the team landscape and possibly impacting the competitive rhythm of the factory BMW squad.
Porsche Penske Motorsport, Wayne Taylor Racing and Meyer Shank Racing maintain two entries each, while Action Express Racing, JDC-Miller Motorsports and Heart of Racing return with a single entry each, the latter switching to full-time competition.
A notable absence is Proton Competition, which had fielded a Porsche 963 in previous endurance events but is not currently on the full-season list.
The LMP2 class grows to a 12-car field, signaling increasing interest and investment in this secondary prototype category.
United Autosports maintains two entries, while CrowdStrike Racing by APR, Tower Motorsports, TDS Racing, Era Motorsport, Inter Europol Competition, Pratt Miller Motorsports and AO Racing return with a single entry.
Newcomers include Team Tonis set for a full-season effort with an Oreca 07 following Road America debut, while Intersport Racing and Bryan Herta Autosport make a return in partnership with PR1/Mathiasen.
However, previously active AF Corse and Riley are not slated to return in LMP2.
In GTD Pro class, the field has seen a contraction from ten full-season entries to eight, reflecting some strategic shifts among teams and manufacturers.
DragonSpeed has switched down to GTD, while Paul Miller Racing has trimmed its operation from two full-season cars to a single entry, though the manufacturer is yet to be confirmed.
New entries include Risi Competizione, returning under its own banner, and Triarsi Competizione which steps up to GTD Pro with an endurance-cup-only program.
The GTD class is the largest and most diverse category, with 14 full-season entries confirmed.
Noteworthy in this category is the return of Riley Racing with a Ford Mustang GT3, as well as the full-season step-up of Van der Steur Racing.
AWA have updated their team name to 13 Motorsports, while RS1 steps up from IMSA Michelin Pilot Challenge.
Beyond the confirmed full-season entries, IMSA expects additional cars for the season-opening Rolex 24 at Daytona, which traditionally attracts a larger field exceeding 60 competitors.
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Full 2026 IMSA WeatherTech SportsCar Championship entry list
GTP class
| # | Team | Chassis |
|---|---|---|
| 6 | Porsche Penske Motorsport | Porsche 963 |
| 7 | Porsche Penske Motorsport | Porsche 963 |
| 10 | Cadillac Wayne Taylor Racing | Cadillac V-Series.R |
| 23 | Aston Martin Heart of Racing | Aston Martin Valkyrie |
| 24 | BMW M Team WRT | BMW M Hybrid V8 |
| 25 | BMW M Team WRT | BMW M Hybrid V8 |
| 31 | Action Express Racing | Cadillac V-Series.R |
| 40 | Cadillac Wayne Taylor Racing | Cadillac V-Series.R |
| 60 | Acura Meyer Shank Racing | Acura ARX-06 |
| 93 | Acura Meyer Shank Racing | Acura ARX-06 |
| 85 | JDC-Miller Motorsports | Porsche 963 |
LMP2 class
| # | Team | Chassis |
|---|---|---|
| 2 | United Autosports | Oreca 07 |
| 22 | United Autosports | Oreca 07 |
| 04 | CrowdStrike Racing by APR | Oreca 07 |
| 8 | Tower Motorsports | Oreca 07 |
| 11 | TDS Racing | Oreca 07 |
| 18 | Era Motorsport | Oreca 07 |
| 37 | Intersport Racing | Oreca 07 |
| 43 | Inter Europol Competition | Oreca 07 |
| 52 | Bryan Herta Autosport with PR1/Mathiasen | Oreca 07 |
| 61 | Team Tonis | Oreca 07 |
| 73 | Pratt Miller Motorsports | Oreca 07 |
| 99 | AO Racing | Oreca 07 |
GTD PRO class
| # | Team | Chassis |
|---|---|---|
| 1 | Paul Miller Racing | TBC |
| 3 | Corvette Racing by Pratt Miller Motorsports | Chevrolet Corvette Z06 GT3.R |
| 4 | Corvette Racing by Pratt Miller Motorsports | Chevrolet Corvette Z06 GT3.R |
| 9 | Pfaff Motorsports | Lamborghini Huracan GT3 EVO2 |
| 14 | Vasser Sullivan Racing | Lexus RC F GT3 |
| 64 | Ford Multimatic Motorsports | Ford Mustang GT3 |
| 65 | Ford Multimatic Motorsports | Ford Mustang GT3 |
| 77 | AO Racing | Porsche 911 GT3 R (992) |
GTD class
| # | Team | Chassis |
|---|---|---|
| 12 | Vasser Sullivan Racing | Lexus RC F GT3 |
| 13 | 13 Motorsports | Chevrolet Corvette C8.R GTD |
| 16 | Riley | Ford Mustang GT3 |
| 19 | Van der Steur Racing | Aston Martin Vantage GT3 Evo |
| 27 | Heart of Racing Team | Aston Martin Vantage GT3 Evo |
| 34 | Conquest Racing | Ferrari 296 GT3 |
| 36 | DXDT Racing | Chevrolet Corvette Z06 GT3.R |
| 45 | Wayne Taylor Racing | Lamborghini Huracan GT3 EVO2 |
| 57 | Winward Racing | Mercedes AMG GT3 |
| 66 | Gradient Racing | Ford Mustang GT3 |
| 70 | Inception Racing | Ferrari 296 GT3 |
| 81 | DragonSpeed | Ferrari 296 GT3 |
| 96 | Turner Motorsport | BMW M4 GT3 EVO |
| 120 | Wright Motorsports | Porsche 911 GT3 R (992) |
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