Mud bogging

"Mudding" redirects here. For the online text-based games, see MUD.
"Mud run" redirects here. For the stream in Pennsylvania, see Mud Run (Green Creek).

Mud bogging (also known as mud racing, mud running, mud drags, or mudding) is a form of off-road motorsport popular in Canada and the United States in which the goal is to drive a vehicle through a pit of mud or a track of a set length. Winners are determined by the distance traveled through the pit. However, if several vehicles are able to travel the entire length, the time taken to traverse the pit will determine the winner. Typically, vehicles competing in mud bogs are four-wheel drives. The motor sport is overseen by sanctioning bodies like the American Mud Racing Association,[1] and the National Mud Racing Organization (NMRO),[2] that oversee each class, develop and maintain the relationship with track owners to provide a racer and fan-friendly facility, ensure the sponsors get a good return, and help govern the sport.


Mud bogging Unimog U1600

A modern top level Class V or VI mud racer is a dragster-style "rail" design, with a supercharged engine and/or nitrous oxide injection. Engines may be in the front or the rear of the vehicles. Vehicles are required to have four wheel drive, in order to assure that the vehicles have the best possibility of avoiding being stuck. The sole difference between Classes V and VI is the tire type. Class V racers have D.O.T. street legal mudding tires for traction. Class VI vehicles have tractor tires.

Early mud boggers were pickup trucks or sport utility vehicles modified with lifted suspensions and larger tires, and classes exist for such vehicles today. Engine upgrades were also common. In the late 1970s and early 1980s, large tractor tires became popular, and the drive lines required to run such tires led to some of the first purpose-built mud bogging machines. By the late 1980s, many sanctioning bodies began giving precedence to vehicles with modified, and lower, dragster-type "rail designs", as they had increased in popularity. At the same time, superchargers first became widely used, leading to the modern top-level racer.

In the late 70's and most 80's mud bog events, there was generally a class that was for running tractor tired trucks. Trucks like the Arizona Outlaw, Goldbricker, Six Pack, Arizona Sidewinder, Instant Motion, Mud Lord, Mud Pup, Wild Thing, Nasty Habits, Unnamed & Untammed, and the legendary Cyclops were frequent competitors. Some of these trucks would later be modified to be Monster Trucks.

There are many types of mud bogs, from Hill and Hole, Flat or Progressive Track, to Open Bog. They come in many shapes and sizes from 150 feet (46 m) to over 300 feet (91 m). Hill and Hole is just as it sounds, usually 60 feet (18 m) wide 200 feet (61 m) long, a series of hills and holes, and is challenging to each truck. All NMRO tracks are Flat or Progressive tracks, more like a drag strip, or sand drag. Open bogs come from Florida and are mostly natural. These tracks have little organization.

Hill and Hole classes range from 4 and 6 Cylinder, Street Stock, Hot Street, Renegade, Super Street, Small Tire Modified 36" and below, Big Tire Modified 37" and bigger tire, Unlimited, X Class, and More. There are many class usually set but the tire size, and engine.

Most Unlimited and X classes are run with what you want in the safety rules. These trucks have big power engines, built just for that class and are not limited to what can be added to the truck. The truck must pass all safety rules and be safe to put in a show and not hurt the crowd.[3]

National Mud Racing Organization is currently one of the only major professional championship series left. Their rulebook is the general basis for most other mud racing competitions. The NMRO was founded by Gary Baker of Dayton, Ohio.

USA Motorsports and USHRA ran professional mud racing series, both referred to as the Indoor Series, for many years until it was phased out of events around 1995. They would occasionally have mud bogs as part of later events, but not on the same scale as before.


In March 2007, Mud Truck Television was created with the specific purpose of providing media coverage for the sport. The show airs nationwide on a weekly basis on the Untamed Sports TV Network and several cable networks across the midwest. The show is hosted by Brian and Lisa Austin and is filmed and produced in Arkansas. Mud Truck TV features races and events across the United States.


The Mississippi Off Road Race Park, a 30-acre (12 ha) race complex located 12 miles north of Natchez, is the home of "outlaw" mud racing and mud drags. Sanctioned by the Southwest Mississippi Mud Racing Association, the park draws crowds from all over Mississippi and Louisiana.[4]

Mud bogging events

Mud bogging has grown from a backyard pastime to events that host upward of 40,000 people in a weekend. It is no longer solely a participant sport, growing into a multi-million-dollar spectator sport with high paying sponsors. There are many annual, monthly, and weekly events such as Barnyard All Terrain, Vermonster 4x4, Louisiana MudFest, South Florida Slingin', Howie's Mud Bog, Triple Canopy Ranch, Michigan Mud Jam, and Truck Night at Yankee Lake.

See also


  1. "American Mud Racing Association". American Mud Racing Association. Retrieved May 12, 2014.
  2. "National Mud Racing Organization". National Mud Racing Organization. Retrieved May 12, 2014.
  3. Mud trucks; Retrieved April 27, 2011
  4. "Mississippi mud racing". Retrieved April 27, 2011.
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