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WRL-World Racing League
WRL-World Racing League Calendar
ENDURANCE
WRL-World Racing League Calendar
2026
06/08.02.2026 Eagles Canyon Raceway/USA
27.02/01.03.2026 Barber Motorsports Park/USA
03/05.04.2026 Thunderhill Raceway Park/USA
24/26.04.2026 Road America/USA
05/06.06.2026 Daytona International Speedway/USA
24/26.07.2026 Michelin Raceway Road Atlanta/USA
28/30.08.2026 Watkins Glen International/USA
25/27.09.2026 Burt Brtohers Motorpark/USA
16/18.10.2026 Sebring International Raceway/USA
04/06.12.2026 COTA-Circuit of the Americas/USA
WRL-World Racing League Calendar |
|---|
07/09.02.205 Eagles Canyon/USA |
28.02/02.03.2025 Barber/USA |
04/06.04.2025 Mid-Ohio/USA |
25/27.04.2025 Road America/USA |
06/07.06.2025 Dayton/USA |
25/27.07.2025 Road Atlanta |
29/30.08.2025 High Plains/USA |
26/28.09.2025 Utah Motorsports Campus/USA |
17/19.10.2025 Watkins Glen/USA |
07/09.11.2025 Sebring/USA |
05/07.12.2025 Cota/USA |
WRL-World Racing League
World Racing League’s goal is to provide a highly competitive, professional-level racing experience on an amateur racing budget - without compromise.
That means you’ll see garage-built cars sharing the grid with factory built race cars. What does this mean for you? Some of the best competition around in the most time-honored format: multi-class endurance racing.
Professional Racing Experience
WRL aims to offer a true, professional, multi-class racing experience without all the red-tape (or cost) of “pro” racing. WRL’s rulebook balances performance by taking into account one of the biggest factors that determines to performance: the power-to-weight ratio (PWR). This method has proven itself to balance diverse fields of cars and has our race finishes down to the wire, we’re talking literal seconds after 8-14 hours of racing. Close racing sounds good on paper, but balancing such a wide range of vehicles must take a massive rulebook right? At less than 20 pages, we’ve proven that close racing doesn’t mean jumping through thousands of hoops to be compliant. WRL also aims to be one of the most accessible series for experienced drivers with a variety of ways to get involved in real W2W racing with a focus on driver development and education. Our vast variety of cars is by design: have a competitive class for nearly any racecar to call home.
Our rules, pro-racing features, live pit stops, classing, enforcement and our fantastic competitors make this some of the best bang-for-buck racing in the world.
Amateur Racing Budget
What makes WRL racing appealing to so many? Value. Providing great features at great expense is easy, but that wasn’t our objective. Finding the best balance between pro level competition and value-driven rules and format has always been the goal. 20+ hours of included track time per weekend, 180+ treadwear tires that can last an entire race (or weekend depending on the car), rules that encourage building for reliability and our no-contact culture are just a few ways we get there. Whether you are taking the step up to WRL from budget endurance options, moving over from a sprint racing organization, or you’re tired of the ever-increasing cost and limited seat time the “pro” series offer, we’re here for you!
You might’ve seen pictures of factory built racecars or stacker haulers at WRL events and thought that this isn’t the place for you, but that just isn’t the case. Stacker trailer or open trailer, Porsche 718 or 944, WRL is one of the few places in the racing world where David and Goliath are the same height. This extends to the atmosphere and camaraderie in the paddock, it’s simply second to none - a testament to the integrity and sportsmanship of the teams and drivers that make WRL the wonderful place it is.
5 Classes - Your Car Fits!
WRL’s races are split into 4 diverse categories that are separated by power-to-weight splits. These classes are split further into GP (General Production) and GTO (Grand Touring Open) classes. Racing in every class is always competitive, so no matter what you bring to WRL we’ve got a competitive place for it to race. You can find your cars PWR by dividing it’s weight (full of fuel, no driver, empty cool box) by it’s Dynojet horsepower. Since horsepower and weight are the two primary classing you can feel free to modify, swap engines, and remove weight to your heart’s content. If you have any questions on classing email Race@RaceWRL.com.
General Production (GP) Classes
General Production (GP) classes are governed by both their power-to-weight ratio as well as a modifier table that balances both the performance gains certain components add, as well as taking cost into account. All GP class cars must be mass-produced and available for sale in North America. Some exceptions may be made for some factory race cars at WRL discretion (Ford Mustang FR500s for example) but they must take all modifiers over the BASE model of that vehicle. The GP classes represent the home-built, grassroots cars and the ruleset encourages creativity with many ways to build the same car to the competitive end of the class without allowing checkbooks to rule. Want aero for example? You might need to give up some horsepower or add weight.
GP1 (General Production 1) (10.5 - 12.79 PWR)
GP1 cars represent the fastest of the General Production classes. These cars are governed by a power to weight range of 10.5:0 - 12.799.
All GP1 cars follow the GP fuel rule (factory x 1.15) OR 18 gallons, whichever is greater.
GP1 cars represent the fastest of the General Production classes and a great way to go fast on a relative budget.
Examples of popular GP1 Cars: Nissan 350z, C5 Corvette, E36 M3, Porsche 987 3.4 Cayman, BMW E46 M3 with detune/ballast, V6 swapped Miata’s, S2000 & many, MANY more!
GP2 (General Production 2) (12.8 - 15.09 PWR)
GP2 cars are a great balance of speed and affordability, their lower weight limit of 12.8:1 - 15.099:1. Fuel in GP2 is lmited to 115% of factory capacity or 16.5 gallons, whichever is greater.
A few examples of GP2 cars are: TCA Spec cars, Spec E46 with ballast, BMW E36 M3, Mazda NC MX-5 w/ 2.5 swap, 2005+ Ford Mustang V6, Porsche Boxster, Lexus SC300 & many, MANY more!
GP3 (General Production 3) (15.0 - 18.0 PWR)
GP3 cars might represent the highest end of the PWR scale, but the racing is amazing and participation level is high!
GP3 has represented as our second largest class at multiple events in 2021 and we expect it to continue in its growth! GP3 is governed by a power-to-weight limit of 15.1:1 - 18.0:1. GP3 fuel is limited to 115% of factory fuel capacity or 15 gallons, whichever is greater.
A few examples of GP3 cars are: Mazda MX-5/Miata (all), Porsche Boxster, BMW E36 325i/328i, Lexus is300, Porsche 944, E30 & many, MANY more!
Grand Touring (GT) Classes
Grand Touring Over (9.0 - 18.0 PWR, over 2400 lbs)
Grand Touring Over is the fastest most open class for cars over 2400lbs in WRL with a minimum PWR of 9.0:1. GTO cars must take any applicable modifiers in the GTO modifier table as well as the flat curve modifier. This is a great example of where a concise rulebook can be the best rulebook - the very simple PWR limit combined with our sophisticated fuel formula has made this one of the most consistently competitive classes to date. This class accepts factory built and tube framed cars with a minimum weight of 2400lbs. GTO also observes the WRL fuel formula which can be found in the WRL rulebook HERE. This class has become a fantastic place to race previous generation pro-series cars against some of the fastest home-built endurance race cars in the country. A few examples of GTO cars include: GT4 homologation, TCR homologation, PWC, V8 or V6 swapped MX-5/Miata, BMW E46 M3, 981/987 Cayman S, 996 Porsche 911, & many, MANY more!
Grand Touring Under (9.0 - 18.0 PWR, under 2400 lbs)
Grand Touring Under is the fastest and most open class for cars under 2400lbs with a minimum PWR of 9.0:1. GTU cars do NOT take any modifiers other than the flat curve modifier (if applicable) and run at 9.0:1 PWR. This class is primarily comprised of small prototypes (windshields and cages matching WRL specifications required) and highly modified / smaller street cars like Lotus Elise, MX-5, etc wishing to run at a lighter weight. Low-windshield-height vehicles are required to run a beacon light on top for safety and visibility. GTU runs a limited schedule and it’s own National Championship circuit with additional tracks added for 2023, including COTA for the championship round. A few examples of GTU cars are: Elan NP01, MX-5 (swapped), Lotus Elise / Exige, and anything else you can dream up under 2400lbs!
WRL Classing
WRL’s classing aims to equalize vehicle performance to let the drivers and teams do the talking.
General Production (GP) Classes
GP1 (General Production 1)
GP2 (General Production 2)
GP3 (General Production 3)
Grand Touring (GT) Classes
GTO (Grand Touring Open)
GTU (Grand Touring Under)
Grand Touring (GT) Classes
Grand Touring or GT represents the fastest category in WRL.
GT cars do not take any modifiers from the modifier table except the flat power curve modifier (applicable to all classes) and the Lexan/plexiglass side window modifier (see rules for more information). This is a great example of where a concise rulebook can be the best rulebook - the very simple PWR limit combined with our sophisticated fuel formula has made this one of the most consistently competitive categories to date. The GT category accepts factory built and tube framed cars with some limitations.
GTO (Grand Touring Open)
Grand touring open represents the lowest PWR class in WRL (fastest). GTO is governed by a power-to-weight window of 18.0:1 - 9.0:1 GTO observes the WRL GTO fuel formula.
This class has become a fantastic place to race previous generation pro-series cars against some of the fastest home-built endurance race cars in the country.
A few examples of GTO cars include: GT4 homologation, TCR homologation, PWC, V8 or V6 swapped MX-5/Miata, BMW E46 M3, 981/987 Cayman S, 996 Porsche 911, Late model stock cars, some TA category cars & many, MANY more!
GTU (Grand Touring Under)
Grand touring under (GTU) is comprised of cars that are similar to GTO cars but weigh less than 2400lbs. Cars in this category run at 9.0:1 PWR and are NOT affected by PWR modifiers. This class was born from the demand for lightweight sports prototype racing in the US, but engine swapped Miatas have already proven that this can be a builders class for lightweight production cars. GTU cars are governed by the same base ruleset that GTO is.
A few examples of GTU cars include: Sebeco NP01, Engine Swap Miata, Lotus, etc.
No-Contact Culture
Driver Conduct & Expectations
Respect & Patience are the keys to enduro success
WRL is committed to it’s no-contact culture and maintaining a clean and safe place to compete. While we cannot prevent contact from our seats in race control, we utilize a variety of methods to ensure you and your car are able to compete in the safest environment possible. Our persistent driver tracking and strict policy on contact means that we work with drivers before, during and after events to improve in the event of non-egregious contact-if improvement isn’t realized we always act in the interests of the teams and drivers who are committed to racing clean. This combination of education and strict enforcement has built a wonderful atmosphere where teams across all classes work together towards the same goal-finishing races.
It’s All About Respect
Respect for your fellow racers is required. This means respecting your competitor's racing room on track, giving point-bys when possible and exercising patience as outlined above. Remember: we're all responsible for not only our own safety while racing but also the safety of our fellow competitors and their equipment. We do this for fun, we do this because we love this sport, we all recognize the risks-but at the end of the day the most important thing is that we all go home safe to our families and friends. While WRL attracts some of the best drivers in the US and abroad, this is still an amateur series and you will encounter a variation in driver skill. Being prepared for it and reading the "body language" of cars around you is critical to being safe and successful in WRL or any amateur endurance racing series. As the driver of a faster car in GTO or GP1, understand and respect that the driver in the GP2 or GP3 car is racing just as you are, and dive-bombing to steal an apex from 100 yds back is not respecting them as a competitor. As the driver of a car in a slower class you also must show respect to the faster cars by being aware.
Please don't slow yourself down or risk your equipment by needlessly racing/dicing with out-of-class cars or when several laps down. Be aware of who you are and are not racing for position - this is partially the responsibility of your crew/teammates to assist via radio.
Patience Is The Key To Success
Endurance racing is a completely different beast compared to other forms of road racing. Most of the issues we see in race control are caused because a driver wasn't exercising one of the most important skills you can possess in endurance racing: patience. If you are in a faster car discretion is often the better part of valor. Brake a few feet earlier to follow a slower car through a corner instead of forcing your way through or attempting a last-second dive bomb. At best these dive bomb moves will slow both cars down through the corner as you drive side-by-side, at worst the few tenths you might have gained will be offset by a one-or-more lap penalty and the risk of driver probation. If you feel you are being blocked or chopped by a car ahead, do NOT take justice into your own hands or make a low-percentage move out of frustration - have your team notify a marshal and we will have the corners watch for blocking and warnings/penalties will be issued.
Unlike sprint racing, being just ahead or just behind a car (in class or out of class) at any given moment matters far less than assuming the risk of penalty for contact by making a low percentage move or blocking to keep position - especially early in the race.
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