JRDA follows The Rules of Flat Track Roller Derby – officially licensed by WFTDA - with some changes to allow for skater safety, ability, and endurance, as documented in the JRDA Addenda.
The JRDA Addenda detail all modifications The Rules. These rules, with Addenda, are for JRDA Regulation and Sanctioned games. All rules for junior play not specifically modified in the JRDA addends remain as published in The Rules.
The Rules have been combined with the JRDA Addenda into one document, The Rules of Flat Track Roller Derby, JRDA Edition.
The JRDA Code of Conduct sets expectations for behavior by JRDA participants (including spectators).
2.2.2: Edited language for clarity to indicate that a jammer becomes ineligible to earn lead if they exit the front of the Engagement Zone without having earned Lead on their initial trip,
2.3: Edited language to add that clockwise skating that destroys a pack that has no established speed is illegal.
4.1.2: Added additional description of contact with an Illegal Blocking Zone that warrants a penalty.
Using an Illegal Blocking Zone also has sufficient impact to warrant a penalty if:
The contact puts an opponent significantly off balance;
The contact significantly alters an opponent’s trajectory or speed (for example, significantly holding them back);
The contact with an opponent allows the Skater to maintain an in-bounds position (that otherwise would not have been maintained); or
The contact with an opponent allows the Skater to maintain an upright position (that otherwise would not have been maintained).
Added Scenario C2.2.H: This scenario provides guidance on assessing an immediate penalty to a Blocker for intentionally adopting an illegal starting position on Jam Start that would create an unfair advantage.
Scenario C4.1.2F: Removed the Keep in Mind to reflect a new illegal contact penalty for illegally maintaining in-bounds or upright position.
Added Scenario 4.1.2.H: This scenario provides guidance on assessing a penalty on a Jammer for using forearms to maintain an in-bounds position.
Scenario C4.2.1.I: Changed the Keep In Mind to reflect the change in 2.3. Clockwise skating that causes a No Pack when the pack has no established pack speed is a penalty.
Added Scenario C4.2.3.I: This scenario provides guidance on when an extra Skater on the track may return to the bench without a penalty, due to their presence having no impact on the Jam in progress
Added Scenario C4.2.4.G: This scenario provides guidance for calling a Jam and assessing penalties when a mouthguard is on the track and no Skater immediately retrieves it.
Added Scenario C4.3.M: This scenario provides guidance for assessing penalties for intentionally fielding too many Skaters at the start of a Jam.