International Defensive Pistol Association


The International Defensive Pistol Association, founded in 1996, is an organization based in Bogata, Texas, that has created a shooting sport based on defensive pistol techniques, using equipment including full-charge service ammunition to solve simulated "real world" self-defense scenarios. Shooters competing in defensive pistol events are required to use practical handguns and holsters that are deemed suitable for self-defense use and concealment garment that can conceal the handgun from view of bystanders.
The sport came about as a response to the perceived shortcomings in competitions organized by the United States Practical Shooting Association and its migration away from the use of common, un-customized handguns. It was decided by the founders of IDPA, 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.
In order to keep the sport in line with its founding principles, allowable alterations to the competition gear 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.

Scoring

Scoring at each match is based on the time taken to shoot the stage plus time added for any penalties accrued. Penalties are given for poor marksmanship, failure to use cover, failure to follow a Safety Officer's directions, or any violation of IDPA rules. Penalties range from one second per dropped point on targets up to 20 seconds for a Failure to Do Right which is a blatant violation of IDPA rules—i.e. cheating or unsportsmanlike conduct.

Unlimited Scoring

Most IDPA stages are scored using Unlimited Scoring which means that shooters may fire as many rounds as they feel necessary to make the specified number of hits. The best hits on the target are the only ones that count for score. If a stage calls for two hits on each target, a shooter may fire as many rounds as desired and no penalty will be given. Only the best two hits will count.

Limited Scoring

On a standards stage it is common for the course of fire to specify Limited scoring. On this type of stage, the shooter may fire no more than the number of rounds specified. Firing more rounds will earn a procedural penalty and only the lowest scoring hits on target, of the number specified in the course of fire, are counted. For example: a Limited Scoring stage calls for two shots fired; the shooter fires one round into the -0 zone and one round into the -1 zone; if they fire again, hitting the -0 zone; when the target is scored, only the -0 and -1 zone hits will count. The "make up" -0 shot will be thrown out and the shooter will be assessed a procedural penalty for firing more shots than the course called for. In addition, the shooter will have also added to their score by taking the time to fire the extra round.

Points Down

Originally the IDPA target was marked with two 5-point zones, a 4-point zone, and a 2-point zone. However since scoring is obtained not by calculating points obtained but by subtracting points dropped, the scoring zones came to reflect that system.
The current standard IDPA target is a cardboard humanoid shape with scoring zones perforated onto its surface. There are two areas marked as "-0" or "down zero" and two marked "-1" and one marked"-3".
Hits in each zone are added to the total points down. A target calling for two hits, with one hit in both the "-1" and "-3" zones would be scored as "-4" and called as "down-4." Only the shooter's best hits are scored unless a stage is specified as Limited Scoring. A Limited Scoring stage specifies the number of shots that can be taken at a target. Additional shots taken past the specified number results in a procedural penalty, in addition to which only the lowest-scoring shots are recorded. A miss on a target is scored as down-5.
Points down are added directly to the total time taken to shoot the stage.
Prior to 2017, the points down were halved before adding to the time, with a 5-second "failure to neutralize" penalty added for not getting at least one shot within the down-0 or down-1 zones of a threat target.

Penalties

Hit on Non-Threat (HNT)

All targets identified with two open hands are considered to be a "non-threat". Shots that hit a non-threat in a scoring zone will result in a 5-second penalty being assessed for every hit.

Procedural Error (PE)

A procedural error is a 3-second penalty given for breaking the rules of IDPA or failing to follow the directions of a course of fire.
Procedurals may be assessed by the safety officer for infractions such as:
A flagrant penalty is a 10-second penalty given in place of a PE when a competitive advantage worth more than the 3-second PE penalty is gained by an infraction that would normally draw a PE.
Flagrants may be assessed by the safety officer for infractions such as:
A failure to do right is a 20-second penalty given for "gross unsportsmanlike conduct". This penalty can be highly subjective, and the safety officer has to determine that the shooter engaged in the action with a "guilty mind"—that he knowingly failed to do right. Because of the subjectivity of the call, the penalty is seldom given. Receiving one all but guarantees the shooter will lose the match, or at least place low in his or her division. FTDRs are specifically meant to address intentional violations of the rule book that allow a competitor to gain a competitive advantage greater than 10 seconds. If the competitive advantage from the rule violation can be negated with an FP or PE, than an FTDR shouldn't be used. One of the few known examples of an FTDR from a sanctioned match was for a competitor who, even after receiving multiple warnings, refused to help paste targets to reset stages.

Equipment

Firearms

IDPA currently recognizes seven divisions of competition, with each division having different limitations for the firearms. The Revolver and Back-Up Gun divisions are further divided into two subcategories each. The rules for Pistol Caliber Carbine division are provisional as of May 2017. As of November 2018, Carry Optics is an official division in IDPA competitions. CO equipment rules follow ESP division equipment rules with the exception that the firearm with the optic may not exceed 45 ounces.
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.
Division/SubcategoryAbbrevTypeCaliberMin Power Factor Max Weight Max Barrel Max Dimensions Max Rounds LoadedOther Firearm Restrictions-
Stock Service PistolSSPSemi-automatic≥ 9mm Parabellum12543.00N/A8.75 × 6 × 1.62510DAO, DA/SA, or striker-fired
At least 20,000 produced or 2,000 per year
Minimal modifications from stock		-
Enhanced Service PistolESPSemi-automatic≥ 9mm Parabellum12543.00N/A8.75 × 6 × 1.62510-
Custom Defensive PistolCDPSemi-automatic.45 ACP16543.00N/A8.75 × 6 × 1.6258-
Compact Carry PistolCCPSemi-automatic≥ 9mm Parabellum12538.004.3757.75 × 5.375 × 1.3758-
Stock RevolverREV-SRevolver≥.38 Special10543.004.25N/A6Rimmed cartridges only
No moon clips
Minimal modifications from stock		-
Enhanced RevolverREV-ERevolver≥.357 Magnum15550.004.25N/A6The maximum grip dimensions allowed are:
F. 5.00” maximum height, measured from the bottom of the hammer opening in the frame to the bottom of the
grip, 2 3/8” maximum depth, 1 5/8” maximum width.		-
Back-Up Gun SemiautoBUG-SSemi-automatic≥.380 ACP9526.003.56.5 × 4.625 × 1.3756-
Back-Up Gun RevolverBUG-RRevolver≥.38 Special9526.002.56.5 × 4.625 × 1.3755-
Pistol Caliber CarbinePCCSemi-automatic9mm Parabellum
.357 SIG
.40 S&W
10mm Auto
.45 ACP		135N/AN/AN/A30Designed to be fired from shoulder
Shoulder stock installed
Carry OpticsCOSemi-automatic≥ 9mm Parabellum12545N/A8.75 × 6 × 1.62510″Passive Optics 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.-

Holsters