13. Award NO value if a jump or a throw (in pairs) is marred by a fall.
In case of a fall or landing on two feet on any jump or throw jump in pairs, the concerned element should be considered as a not-completed element and called by the Technical Panel as a no-value element, and not marked by the judges either.
A fall should be awarded no points, but I think that a two-footed landing deserves some credit, if only to count towards the Zayak rule.