Appendix A: Glossary

Official 2026 Ultra4 Rulebook glossary of technical terms, race procedures, vehicle definitions and terminology used throughout Ultra4 competition.

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Automatic Disqualification

Disqualification assigned immediately to an entrant, whether or not they have completed the event, by the Executive Director, Event Director, or Race Director, at the discretion of Ultra4 for certain grievous infractions. Entrants suffering automatic disqualification shall be so informed by the Executive Director, Event Director, or Race Director and, when so informed, must immediately leave the course by the safest and most expeditious means possible without interfering with any other entrants still in competition. Failure to comply shall result in fines and/or suspension.

Co-Driver

A person who is listed on an official Ultra4 event entry form as the co-operator of a vehicle and who is eligible to drive or ride during the course of the event. The Co-driver must sign all entry and release forms in person during the normal registration time at the same time as the Driver of Record is signing all entry and release forms.

Competitor

The person or persons occupying the vehicle during an event. The Driver of Record and the Co-driver(s) (if present) are the competitors.

Contingency

Contingency is a commitment made by a manufacturer, retail outlet, or other business to Ultra4 regarding a specific purse to be paid to event competitors in return for display of contingency logos.

Event competitors must sign up for contingency with manufactures, and manufactures must execute contracts with competitors immediately following the completion of the event. Contingency offers must be made available to Ultra4 no less the 30 days before the start of any event for which the contingency is offered.

Crew Member

Any person associated with, acting on behalf of, or working for a team, whether compensated or not, is a crew member. Crew members include, but are not limited to: pit crew, radio operators, fuelers, mechanics, volunteers, support personnel, cooks, cleaners, cheerleaders, umbrella girls, etc.

Designated Time Limit

The maximum allowable time entrants have to complete the course/event or cross the finish line. Calculated as the total elapsed time between the entrant’s start time and either the time at which the finish line closes or the time at which the checkpoint immediately after the entrant’s present position closes, whichever occurs first.

Disqualification

The state of being disqualified. An official event result assigned to entrants for certain violations of the rules. Disqualification results in the entrant being ineligible for any points, purse, prize, or contingency related to the event in which they are disqualified. Entrants who are disqualified receive no finishing time, score, or placement for the event in which they are disqualified. Disqualification may be decided post-event by the CRB or, for certain grievous infractions, may be assigned immediately and automatically to an entrant by the Executive Director, Event Director, or Race Director, at the discretion of Ultra4 or FOCUS. The latter case is known as automatic disqualification.

DNF

Did Not Finish – The official event result assigned to entrants that do not complete the course/event or do not complete the course/event within the maximum allowable time.

DNS

Did Not Start - The official event result assigned to entrants that do not start the course/event, whether unable to or prohibited from doing so by regulation or ruling.

Driver of Record

A person who is listed on the official Ultra4 documents as the main operator of a vehicle during the event. The Driver of Record must sign all Ultra4 forms and is responsible for any taxes that may be incurred from prize money resulting from event purse, prizes, or contingency. The Driver of Record must be at least 18 years of age at the start of an event, and must be at the controls of the vehicle at the start or finish of the main race of any Ultra4 event in which they are listed as such. The Driver of Record must sign all entry and release forms in person during the normal registration time.

Driver’s Meeting

A pre-competition meeting chaired by the Directors at which critical and specific event information is provided to competitors. Attendance at the drivers’ meeting is compulsory.

Entrant

An entity competing in an event and consisting of a registered vehicle, a registered Driver of Record, and from zero to three registered Co-drivers.

Event

A contest or competition between competitors driving vehicles.

Excessive/Abusive Nerfing or Bumping

Deliberately contacting another vehicle with the intent to damage, disrupt, or upset that vehicle or its occupants. Deliberately contacting another vehicle with willful disregard for the safety of the other vehicle’s occupants or the integrity or condition of the other vehicle or possible damage that such contact may cause to the other vehicle.

Finish of the Event

The finish of the event is defined as the time at which the last competitor completes the course/event or crosses the finish line; or the time at which the finish line/last checkpoint closes, whichever occurs first.

Ultra4 Rulebook

The manual published by Ultra4 containing the rules for the conduct of, and participation in Ultra4 events.

Impound

A specific place, with restricted access, to be used for the purpose of the pre-race and/or post-race inspection of a vehicle.

Infraction

Failure to comply with, adhere to, obey, or carry out any rule, regulation, practice, procedure, requirement, or specification contained in the Ultra4 Rulebook, including any Special Rules or Supplementary Regulations.

King of the Hammers™

An Ultra4 race held annually in the Johnson Valley ORV recreation area.

KOH™

An abbreviation of “King of the Hammers™”

Nerfing or Bumping

Deliberately contacting another vehicle.

OG13

The original competitors in the inaugural King of the Hammers™ race in 2007. The OG13 are given full access to participate in any or all future King of the Hammers™ races without first having to qualify or otherwise earn a position in said race.

Outside Assistance

Any physical act, action, or other help received by any entrant from any person who is not a registered member of that entrant, other than in designated pits.

Participant

Any person, in any capacity, taking part in an Ultra4 event. Competitors, their crew members and support personnel, and team’s sponsors are all participants.

Pit Crew

A crew member, or members, who specifically work in the pits during an event.

Purse

Prize money awarded in accordance with the specific guidelines for a particular event. Event purse shall be announced at drivers’ meeting and be paid out following event.

Qualifier

An event in which competitors compete to qualify for a starting position in the main King of the Hammers™ race.

Race

A contest of speed and/or endurance, against the clock and/or other vehicles. A race is a specific type of event.

Red Card

A ticket, token, card or other device provided to each driver before the event which they may use to report a violation of the rules that they witness or to file a grievance with the Directors or CRB.

Rules

Rules, regulations, specifications, and guidelines published in the Ultra4 Rulebook for the purpose of ensuring the safe, fair, and orderly conduct of races and other events.

Short Coursing

Any deviation from the marked course for any reason other than passing, providing said passing takes place in an approved location along the course.

Special Rules

Rules issued by Ultra4 or FOCUS to account for conditions presented by the location of the event or race, the condition of the course or any other circumstance.

Stand-Alone Event

An event promoted independently by Ultra4 without the cooperation or collaboration of any other sanctioning or promotion company or body.

Start of the Event

The start of the event is defined as the time at which the first drivers’ meeting begins.

Supplementary Regulations

Rules set forth by Ultra4 or FOCUS that are supplemental (in addition) to the rules contained in the Ultra4 Rulebook, or that amend, suspend or modify existing rules and regulations. Supplementary Regulations apply to a specific event, race, venue, or time and place.

Team

A person or persons, identified by a team name, and associated with a particular, specific, and registered Driver of Record and a vehicle that bears an official entrant number, constitute a team. Often a team will be composed of a Driver of Record, Co-driver(s), various crew, and possibly sponsor representatives. However, in the case of a single-seat race vehicle, it is possible that a single person, (the Driver of Record) and a registered vehicle constitute the whole team.

Technical Rules

Those rules, regulations, and specifications set forth in the Ultra4 Rulebook that govern the technical, design, and equipment requirements for vehicles, competitors, pit crews and support crews competing in Ultra4 events.