Jammers Simultaneously Meet All Requirements For Lead Jammer

A:

A: If both Jammers meet the requirements simultaneously, then neither Jammer can be considered "the first" to have done so, and as a result neither Jammer is Lead Jammer.

For example, both Jammers have legally passed all blockers while in play, and the foremost blocker goes Out of Play by exiting the Engagement Zone in front of the pack before the Jammers can pass her. At this moment, they have both met the criteria for Lead Jammer at the same time, so neither Jammer can be Lead Jammer.