RankingDirectiveAppliesTo Property
A string indicating who to apply this RankingRules to. The first, and only the first, RankingRule must have a value “*”.
The value must be one of the following:
“*” to indicate to apply the rule to all participants in the event.
“n..m” where n and m are integer values, representing the rank of the participants after the last RankingRule was applied.
For example, “1..8” means to apply this RankingRule to participants currently in first through eighth place.
Not required, assumed to be '*' if missing.