Under the previous rule, the entire field was given a warning in the event of a false start; anyone in the same race who jumped the gun a second time would be disqualified, even if it wasn't the first offender. But in 2010, the International Association of Athletics Federations changed the rule to its current draconian level because of two reasons: Under the old rule, slower runners would purposely jump the gun to throw off everyone else's timing and give themselves an edge, and the sheer number of false starts slowed down meets and caused television broadcasts to run over their time slots.