A. There is an injured skater on the track who cannot get up. B. Green team’s Jammer is called to the box, and red team failed to field a Jammer for that jam. C. Red team’s Jammer has scored 50 points in the jam (Mercy Rule). D. A and B only
A and b only-188.8.131.52 - a referee may call off a jam for any of the following reasons:184.108.40.206.1 - referees call an official timeout.220.127.116.11.2 - injury. referees will only call off a jam in the case of a serious injury or an injury that could endanger another skater.18.104.22.168.3 - technical difficulty or mechanical malfunctions (including skate trouble).22.214.171.124.4 - in response to a major penalty.126.96.36.199.5 - any skater is unduly interfered with by spectators.188.8.131.52.6 - emergency.184.108.40.206.7 - disruption of the skating surface (debris or spills).220.127.116.11.8 - too many skaters on the track. after the jam has started referees will expeditiously direct any extra skaters so that the jam does not have to be called off (see section 18.104.22.168.6).22.214.171.124 - a referee must call off a jam for any of the following reasons:126.96.36.199.1 - lead jammer calls off the jam by repeatedly placing their hands on their hips.188.8.131.52.2 - end of two-minute jam clock or the end of the periods final jam.184.108.40.206.3 - an injury that is a safety hazard to continued game play.220.127.116.11.4 - fighting.18.104.22.168.5 - technical difficulty or mechanical malfunction (including skate trouble) that is a safety hazard to continued play.22.214.171.124.6 - too many skaters on the track that gives that team a competitive advantage.126.96.36.199.7 - venue malfunctions (including power outages) that are a safety hazard to continued play.188.8.131.52.8 - physical interference (including fans on the track) that interferes with continued play.