In each Jam, the two teams square off against one another with 5 skaters per team. The 5 skaters are divided into 4 defensive players known as Blockers (one of whom wears a striped helmet cover and is called the “pivot;” like a quarterback, this position is the play-caller and controls her pack), and a points-scoring skater, known as a Jammer (identified by a helmet cover with a star).
The Blockers from both teams skate together in a formation known as the Pack. The Blockers’ job is to stop, obstruct or force the opposing Jammer out of play to prevent her from scoring, while at the same time assisting their own Jammer. Play begins when an official whistles once to begin the jam.
Once the Jam whistle has blown, the Jammers fight their way through the Pack and exit it completely to qualify to score. The Blockers from the opposing team will try to prevent them from doing so.
Once out of the Pack, the Jammers then race to lap the Pack. Each time a Jammer laps a member of the opposing team and passes her in-bounds, she receives one point. A Jam is OVER when one of the following occurs:
- The 60 second time limit elapses,
- The Lead Jammer places both hands on her hips, calling off the Jam, or
- When an official ends the Jam due to an emergency, skater injury, or penalty.
How Are Points Earned?
A Jammer earns one point for each skater on the opposing team that she laps and passes in bounds, and she earns an additional point for each member of the opposing team who is serving a penalty, as soon as she gets her first point on each lap of the pack. A Jammer can only score on each opposing Blocker once per scoring pass.
A Jammer can also earn a point for opposing skaters who skate out of play while she is scoring. For example, the Jammer is entitled to immediately receive a point from every opposing Blocker who is leading the Pack by more than 20 feet when the jam ends.
On the final Jam in the game, skaters report to the penalty box immediately after they are assessed their penalties, and they are scored on as if they had been in the penalty box for the whole jam.
SDDD was the first “hybrid” league, playing on both banked and flat tracks, and by two sets of rules:
Rules of the Game Video
Contributing Photographer: Grant Palmer Photography