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ISOF Standard Rules and Regulations
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ISOF Standard Rules and Regulations 

  

Each Promotion may utilize a different set of submission only rules and regulations. Each promotion will specific their ruleset as being ISOF Rules/Regulations. If you have any questions regarding uniforms and other specific questions please direct those questions specifically to the event promotion. 

 

The ISOF utilizes a slightly modified EBI Overtime ruleset as its Standard ruleset for promoters and competitions to utilize for a uniformed rule structure. 

 

Ways a Match can be Won: 

  • Win via Submission victory within regulation time. 
  • Win in Overtime: victory by submission, fastest submission time, or fastest escape time. 
  • Win by opponent disqualification.
  • Win via opponent forfeiture. 

Submission is based upon physical tapping, a verbal tap, or yelling during a submission attempt. If an opponent must have the match stopped for any injury related incident or any other reason beyond control that does not warrant any disqualifications, the opponent will have 5 mins to return to the match or they will have to forfeit the match. 

 

Match Time Limits 

  

Adult Regulation time: 10 Min Matches at all skill levels. 

Teen Regulation time: 8 min matches at all skill levels 

Youth regulation time: 4 min matches at all skill levels.

Overtime time limits: there is no time limit in overtime rounds. Time will run until an escape or submission is obtained. See Overtime rules below for more details. 

 

OVERTIME RULES:

The ISOF utilizes slightly modified Eddie Bravo Invitational overtime rules. Any match whose regulation match time ends without a draw immediately moves into Overtime with no break or time outs. Any competitor who can not answer the call to immediately participate in the overtime round will be disqualified. 

In Overtime competitors may choose between 2 dead zone positions described below. 

 

1. Spiderweb or the Arm Bar position.

Each position must have arms hooked, crook of elbow to crook of elbow. The opponent defending the position may have their arms in any defense configuration they desire. Below are samples of each position. 

 

2. Back Control with Seatbelt Grip

Competitors will begin in a seated back control position upright with both hooks and a seat belt grip. The opponent may have their hands in place on the seat belt grip and chin tucked before ref begins the round. Once round begins the body triangle may be applied but not before. 

  

Submission Shootout

During the overtime rounds opponents are trying to submit or escape as fast as possible. Both opponents will have a chance to submit their opponent from a dead zone of their choosing or escape the deadzone their opponent chooses. The opponent who obtains a submission or the fastest submission in the Overtime round wins the match. Fighters will have 3 overtime rounds to achieve a submission in the event that escapes occur for both fighters. If after 3 overtime rounds no submission is obtained the fighter with the combined fastest escape time will be the victor.  

 In OT the Goal is Submit your Opponent as fast as possible or Escape the Dead zone position as fast as possible. 

  

ISOF Age Divisions


Youth Teens Adults
  • Youth Ages 4-6yrs
  • Youth Ages 7-8yrs
  • Youth Ages 9-10yrs
  • Youth Ages 11-12yrs
  • Teens 13-15yrs
  • Teens 16-17yrs
  • Adults 18yrs +
  • Masters 1: 30-34yrs
  • Masters 2: 35-39yrs
  • Directors 1: 40-44yrs
  • Directors 2: 45-49yrs
  • Executive 1: 50-54yrs
  • Executive 2: 55yrs +


  

 

 

ISOF Weight Classes


Adults (Men and Women)

Teens   Youth 
 
  • 115lbs and under
  • 116-125lbs
  • 126-135lbs
  • 136-145lbs
  • 146-155lbs
  • 156-170lbs
  • 171-185lbs
  • 186-195lbs
  • 196-205lbs
  • 206-235lbs 
  • 236lbs+

 

  • 115lbs and under
  • 116-125lbs
  • 126-135lbs
  • 136-145lbs
  • 146-155lbs
  • 156-170lbs
  • 171-185lbs
  • 186-195lbs
  • 196-205lbs
  • 206-265lbs 
  • 265.1 lbs+
 
  • 39lbs and under
  • 40-49lbs
  • 50-59lbs
  • 60-69lbs
  • 70-79lbs
  • 80-89lbs
  • 90-99lbs
  • 100-115lbs
  • 115lbs+ 

 

  

ISOF GI AND NOGI Legal and Illegal Submission Table

 

White Belt

Legal Submissions:

Illegal Submissions:

 

· Chokes and head and arm chokes

· Arm Bars and Shoulder locks

· Straight Ankle Locks and Knee Bars

· Stretching Locks such as Electric Chairs

· Bicep and Calf Crushes

 

· Twisters

· Wrist Locks

· Heel Hooks

· Toe Holds

· Reaping the knee.

· Neck Cranks

· Slamming

Blue Belt

Legal Submissions:

Illegal Submissions:

· Chokes and head and arm chokes

· Arm Bars and Shoulder locks

· Straight Ankle Locks and Knee Bars

· Stretching Locks such as Electric Chairs

· Bicep and Calf Crushes

· Toe Holds

· Knee Reaping

· Twisters

· Wrist Locks

· Heel Hooks

· Neck Cranks

· Slamming

Purple Belt, Brown, and Black Belt

Legal Submissions:

Illegal Submissions:

· Chokes and head and arm chokes

· Arm Bars and Shoulder locks

· Straight Ankle Locks and Knee Bars

· Stretching Locks such as Electric Chairs

· Bicep and Calf Crushes

· Toe Holds

· Knee Reaping

· Twisters

· Wrist Locks

· Heel Hooks

· Neck Cranks

· Slamming

Youth All Levels

Legal Submissions:

Illegal Submissions:

· Chokes and head and arm chokes

· Arm Bars and Shoulder locks

 

· Straight Ankle Locks and Knee Bars

· Stretching Locks such as Electric Chairs

· Bicep and Calf Crushes

· Toe Holds

· Knee Reaping

· Twisters

· Wrist Locks

· Heel Hooks

· Neck Cranks

· Slamming

Teens Beginners (White and Grey Belts)

Legal Submissions:

Illegal Submissions:

· Chokes and head and arm chokes

· Arm Bars and Shoulder locks

· Straight Ankle Locks and Knee Bars




 

· Stretching Locks such as Electric Chairs

· Bicep and Calf Crushes

· Toe Holds

· Knee Reaping

· Twisters

· Wrist Locks

· Heel Hooks

· Neck Cranks

· Slamming

Teens Intermediate (Yellow Belts)

Legal Submissions:

Illegal Submissions:

· Chokes and head and arm chokes

· Arm Bars and Shoulder locks

· Straight Ankle Lock

· Knee Bars

· Stretching Locks such as Electric Chairs





 

 

· Bicep and Calf Crushes

· Toe Holds

· Knee Reaping

· Twisters

· Wrist Locks

· Heel Hooks

· Neck Cranks

· Slamming

Teens Advanced (Orange and Green Belts)

Legal Submissions:

Illegal Submissions:

· Chokes and head and arm chokes

· Arm Bars and Shoulder locks

· Straight Ankle Lock

· Knee Bars

· Stretching Locks such as Electric Chairs

· Bicep and Calf Crushes




 

· Toe Holds

· Knee Reaping

· Twisters

· Wrist Locks

· Heel Hooks

· Neck Cranks

· Slamming

 

 

Uniform Requirements: 


No-Gi Standard Uniform: Shorts, Spats, or combination of shorts and spats, and Ranked Rash guard. 

 

Shorts must have no zippers or pockets and must reach at least half way down the thigh. Spats may be worn alone or under shorts. 

 

Spats are permitted but must be of "rash guard like" material with no rips or tears. Athletes must wear undergarments. The use of thong-type undergarments is not permitted; only brief-type undergarments may be worn. No Cups are permitted. 

 

Rash Guards: Athletes must wear a ranked rash guard, short or long sleeve. Rash guards must be long enough to cover the waist band of shorts.

 

GI Uniform Requirements: 

standard Gi/Kimono's of any color are permitted. Belt worn must be of the competitors earned rank. Uniforms must be free of any holes or tears and securely fastened. The use of thong-type undergarments is not permitted; only brief-type undergarments may be worn. No Cups are permitted.

The GI top should reach the athlete’s thigh and the sleeves should come to where a wrist watch would sit on an athlete’s wrist when the arm is extended straight parallel to the ground.

GI pants should reach to slightly above the Ankle bone. Under the gi top competitors may wear rash guards, however t-shirts are not permitted.  Females are required to wear a rash guard type top underneath their Gi top. 

 

Jumping and Pulling Guard Rules

 

Jumping Guard (Illegal Technique for Youth/Teen and Adult White Belts) - Jumping guard is only allowed for Adult+ competitors at Blue Belt level and higher. To jump guard an opponent must have both hands gripping the opponent before jumping. Leaping into Closed Guard is not permitted at any level. This move must be done with caution. Leaping into guard is a move that can result in Disqualification based on the referees discretion. 

 

Pulling Guard (Legal Technique All Skill Levels) - Pulling guard is exactly like it sounds. You are pulling your opponent down to the ground into your guard with at least one foot on the ground. Pulling guard requires one opponent to make contact with the other. A grip must be established on either a sleeve, collar, head, gi top or any part of the competitor prior to pulling their opponent down to the ground into their guard. Sitting to the guard is not permitted. Butt scooting is not permitted. You must attempt to take your opponent to the ground or pull them to the ground. Once contact or grip is initiated you may Pull Guard. 

 

Slamming


Slamming is not permitted however the slam is respected. If an opponent is lifted into the air above the waist line for a period of 5 seconds the competitors will be reset in a neutral standing position. EX: Opponent A. is caught in a triangle and lifts opponent B. into the air and keeps the opponents full body above his waist line for 5 seconds the match will reset. However, if opponent B drops reaches for the leg and/or his upper body is hanging or touching the ground the match is still active. 

  

Note Regarding Rules

 

The ISOF Standard Ruleset is ever developing and will change with time as Submission Only Jiujitsu does. Please be sure to check back frequently for updates and changes. 

Thank you for your continued support.

 

 

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