Founders: Bill Wilson, John Sayle, Ken Hackathorn, Dick Thomas, Walt Rauch, Larry Vickers, and Aaron Licourt
The International Defensive Pistol Association (IDPA), founded in 1996, is an organization based in Bogata, Texas that governs a practical shooting sport (IDPA), which is based on defensive pistol tactics, everyday carry equipment, and full-charge service ammunition, to solve simulated "real world" self-defense scenarios. Competitors (shooters) are required to use handguns and equipment (holsters, ammunition carriers) that are suitable for self-defense, and wear a concealment garment tha conceals the handgun and associated equipment from view of bystanders.[1]
The sport came about as a response to the perceived shortcomings in competitions organized by the United States Practical Shooting Association (USPSA) and its migration away from the use of common, un-customized handguns.[1] It was decided by the founders of IDPA (Bill Wilson, John Sayle, Ken Hackathorn, Dick Thomas, Walt Rauch and Larry Vickers), that USPSA competitions had become too far removed from the reality of defensive shooting situations, using extensively modified guns, handmade ammunition, and speed-draw holsters that were impractical for self-defense. The IDPA founders believed that USPSA matches had become "equipment races", which were heavily dependent on a shooter's gear rather than their ability.[1][2]
In order to keep the sport in line with its founding principles, allowable alterations to the competition gear (including pistol or pistol caliber carbine) are carefully regulated in IDPA. Ammunition capacity is limited compared to some other action shooting sports in order to keep the playing field level for competitors from states that ban higher capacity magazines.[3]
Competition
An IDPA match consists of one or more stages. A stage presents a course of fire for the shooter to complete. A course of fire consists of one or more strings of fire. A string of fire is a timed segment in a course of fire. The time to complete a string of fire begins with a start signal (typically audible) and ends with the last shot fired. Time is measured by a shot timer, which provides the start signal and records each shot fired.
There are two types of stages: Scenario and Standards. A Scenario stage represents a self-defense situation that could happen in real life. A Standards stage tests shooting fundamentals.
Scoring
IDPA uses "Time Plus" scoring. "Time Plus" means the time it takes to complete a stage plus time added for points down and penalties. For a stage, the string times (raw time) plus points down time, plus penalty time are added to determine total stage time. For a match, the total time of all stages is added together. Match placement is based on total time. The lower the time, the higher the placement.
Points Down
The official IDPA target is made of cardboard and has a vaguely humanoid shape consisting of a "head" and a "body". Scoring zones are perforated onto its surface. A "neck" perforation demarcates the "head" from the "body."
There are 5 distinct scoring zones on an IDPA target: -0 head, -0 body, -1 head, -1 body, -3 body. The "head" is a 6" square with a 4" circle centered within it. The circle is marked "-0". The area outside of the circle is marked "-1". The "body" has an 8" circle in the high-center chest, which is marked "-0". A polygonal area surrounding the circle is marked "-1". The remainder of the body is marked "-3".
Only the required number of hits are scored. If there are fewer hits than required, the missing hits are scored as misses, which are "-5". If there are more hits on a target then required, the best of the required number of hits are scored, subject to the scoring method used (see below).
Scored hits in each zone are added to the total points down. For example: if a target requires two hits, a hit in the "-1" zone and a hit in the "-3" zone would be scored as "-4" and called as "down-4" (or simply "4").
One second per point down is added to the total time taken to shoot the stage.
Scoring Methods
There are two methods of scoring: Unlimited and Limited. Scenario stages must use Unlimited scoring. Standards stages may use either method, although Limited scoring is commonly used on Standards stages.
Unlimited Scoring
Unlimited scoring means that the shooter may fire more than the required number of shots at a target. The best of the required number of hits on the target are scored. Extra shots (makeups) are beneficial if they remove more points down than the time it takes to fire them.
Limited Scoring
Limited scoring means that the shooter may NOT fire more than the required number of shots at a target. Firing extra rounds on a limited stage will earn a procedural penalty. In addition to the penalty, for each extra shot fired at a target, the highest scoring hit will be removed (taped over) prior to scoring the target.
For example: a Limited Scoring stage calls for two shots per threat target. The shooter fires one round into the -0 zone and one round into the -1 zone. The shooter then fires an extra shot, hitting the -1 zone. First, the shooter is assessed a PE. Second, the highest scoring hit on the target, i.e.: the -0 hit, is removed, leaving two -1 hits. The final score on the target is "down 2."
Penalties
Procedural Error (PE)
A procedural error is a 3-second penalty given for violating the rules of IDPA or failing to follow the stage procedure of a course of fire.
Procedural errors may be assessed by the Safety Officer for infractions such as:
Faulting a cover line while engaging a target at a Point of Cover.
Not engaging targets in tactical priority.
Failing to follow the stage procedure.
Leaving loaded loading devices behind after performing a reload.
Hit on Non-Threat (HNT)
Targets identified with two open hands are considered "non-threat" targets. A hit on a non-threat in any scoring zone will result in a 5-second penalty for each and every hit.
Flagrant Penalty (FP)
A flagrant penalty is a 10-second penalty given in place of a PE when the shooter knowingly commits an infraction and gains a competitive advantage that outweighs the 3-second PE penalty the infraction would normally earn.
Flagrant penalties may be assessed by the Safety Officer for infractions such as:
Shooting with two hands when the procedure requires for one-handed shooting.
Engaging an entire array of threats while faulting cover.
Loading more rounds than allowed in the shooter's division.
The examples provided in the rule book should not be considered automatic. The Safety Officer must use judgement to determine if the infraction warrants a Flagrant penalty.
Flagrant penalties must be approved by the match director.
Failure to Do Right (FTDR)
A failure to do right is a 20-second penalty given for "gross unsportsmanlike conduct".
"Gross unsportsmanlike conduct" includes unacceptable behavior as well as intentional gross violations of the course of fire.
FTDR penalties must be approved by the match director.
Equipment
Firearms
IDPA currently recognizes nine divisions of competition, with each division having different limitations for the firearms. The Revolver (REV) and Back-Up Gun (BUG) divisions are further divided into two subcategories each.[4]
In the following table, note that "Max Rounds Loaded" is a general maximum for all competitions. Instructions for a stage may require a lower round count for that stage. In the semi-automatic divisions, this refers to the maximum number of rounds allowed to be loaded in the magazine. Unless stage instructions state otherwise, shooters may start with an additional round in the chamber. Also note that "Other Firearm Restrictions" only lists the most significant firearm restrictions for a division. See IDPA rulebook for an exhaustive list of rules.
″Passive Optics (MRDS) must be attached directly to slide between rear of slide and ejection port, and may not be mounted to the frame in any way.″ Lasers can also be used as long as the firearm meets all other division criteria.
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