The Unlimited All-Stars, LLC, National Office

4412 W 6th Ave

Beaver Falls, PA 15010


Contact: Mark Bergfelt, Executive Director

[email protected]



To learn about the History and inner working of the UAS go to the AMK Editorials Directory Page

The articles in the directory are required reading for anyone who would like to start a UAS region.


UAS Champions
Links to Official UAS Affiliated web pages

This column is intended for the non-commercial websites of the various regions of the UAS

UAS National Ranking on Facebook

American Muscle Kart...the official publication of the Unlimited All-Stars Facebook page

Most Recent Regions PDF

Alabama UAS

Appalachian UAS

Arizona UAS

Carolina UAS

Central New York UAS

Florida UAS

Georgia UAS

Northern California UAS

Idaho UAS

Keystone UAS

Mississippi UAS

Missouri UAS

Ohio Valley UAS

North West UAS

North-West Ohio UAS

Nor-Cal UAS

South-East Ohio UAS

Tennessee UAS

Texas-East UAS

Up-State NY UAS


NW Race Report



For up to the minute coverage of the UAS follow The American Muscle Kart Page on Facebook



















































































































































































































































































































You have found the official web page of the Unlimited All-Stars, LLC


This page contains information concerning rules, membership and links to stay up to date with this exciting sport.

For the Latest Official UAS news go to our public Facebook page which is maintained by American Muscle Kart


Those tracks/promotors/clubs interested in being considered for hosting a future Unlimited All-Stars Muscle Kart Grand National are requested to download, print, fill out and mail in the Bidding Document for Tracks/Promoters/Clubs Interested in Hosting an Unlimited All-Stars Grand National

UAS Grand National Bidding Document Link


Everyone interested in the UAS and open class speedway kart racing should subscribe to

amk masthead

AMK is published 4 time per year, Spring, Summer, Fall and Winter and has been recording the history of the UAS since 2008. Please note; AMK subscriptions DO NOT come with a UAS membership. AMK Subscriptions are an OPTIONAL upgrade to memberships.

Click here for a 1 season subscripition.

Click here for a 2 season subscripition

but you get the next 9 issues for the price of 8



Another great source of UAS News is the weekly Podcast by Terry Bridges, The NW Race Report  

So...just what is the Unlimited All-Stars? For the on.

The Unlimited All-Stars was originally created in 1990 to preserve the then dwindling open classes on the dirt tracks in Western Pennsylvania.  For quite a while, the Unlimited All-Stars concept was only applied there.  In 2001 the concept was tested on tracks in Florida.  As a result of success there it later spread to Arizona, Georgia and the Carolinas.  It has continued to grow, and as of the beginning of the 2012 season, there are at least 21 officially recognized circuits across the country, and more are sure to come.   To read the complete history of the Unlimited All-Stars concept click on “History” in the directory above.

The Unlimited All-Stars (UAS) is a national club that represents a single class or division for kart racing that combines a wide variety of engine types.  Those engines are limited only by their maximum displacement; otherwise there are virtually no limits to permissible modifications.  The class was developed primarily for competition on short dirt oval tracks although the rules have been applied successfully on other tracks as well.  Obviously, karts such as these are capable of a very high level of performance and therefore the class is intended only for experienced drivers who have proven themselves capable of safely competing in a sportsman like manner.

Due to its nature, the Unlimited All-Stars is not a class that everyone will want to participate in; it’s definitely not intended for everyone.  Racers who are eager to try new and sometimes radical technical ideas feel right at home in the UAS.  The rules contain a set of parameters, and emphasize safety but were intentionally written to allow and encourage innovation.  No matter what class other racers participate in, they all head for the fence and bleachers when UAS guys fire up their engines. It is the kart division that has the potential to fill the stands with ticket buying fans.

Recognizing what appears to be a strangle hold that some manufacturers appear to have over many karting organizations, the UAS refuses to adopt any rule or policy that mandates that any particular brand of product be used by participants.

Ingenuity / Camaraderie / Sportsmanship

Above all, karting is supposed to be fun, not just for the winner but for everyone who participates.  Sportsmanship is the hallmark of the UAS.  Of course winning, even dominating the competition is indeed the goal, but in the UAS there is no honor in winning if the winner’s competitors despise him or her.  The attitude of a true UAS competitor will not allow him to take advantage of a “cheap shot” to advance in position because just as important as winning is, it is the camaraderie with fellow competitors that keeps them coming back, race after race.  It is demanded that track officials are especially firm with UAS competitors and they are to use the black flag when it is called for.  UAS regional administrators are expected to communicate with drivers who may not be driving in an acceptable manner and coach them to improve.  They are also expected to promote a high level of camaraderie among their members.

There are many successful racers in other divisions who had lost the challenge and thrill that kart racing once provided them.  The UAS, with the innovation that it allows and encourages, has renewed their interest in kart racing.

The UAS, as an organization, does not usually promote events on their own, rather they work with promoters who see the promotional value of the UAS to organize events.  By UAS policy, individual promoters have the ultimate responsibility of administering events.  When the UAS drivers are placed on the card for an event, they are the guests of that particular race track.  With the exception of post race technical inspection the UAS does not typically provide any race officials.  The Unlimited All-Stars provides the promoter with a suggested set of policies and rules, negotiates pay-offs, schedules races, provides recognition for participants and publicizes events.  In essence, the UAS was originally set-up as a representative primarily for drivers and race teams.

Awards and Recognition

One of the primary functions of the Unlimited All-Stars is to establish a central contact point for managing the affairs of the UAS participants.  In 2007 a National Ranking system was put into place to allow UAS racers from across the country to see how they measure up in relationship to their peers. In 2008 drivers who wished to be included in the national ranking system were required to become UAS members. This allowed an awards fund to be established to provide prizes and recognition for the members.  In 2010 a new point system was established that included a national season concluding Grand National event that racers wishing to aspire to the National Champion title must compete in.

For more indepth information about the UAS go to the

AMK Editorials Directory Page

Click here to see if there is a region near you. Most Recent Regions PDF




Are the Unlimited All-Stars for you?

If you are a racer who would like to become involved with a local region…

If you own a race track and want to establish an Unlimited All-Stars class….

Or, if you would like to get an official Unlimited All-Stars circuit started in your own local region…

Contact the Unlimited All-Stars Muscle Karts National Office