jeverett
Double Eagle Member
my guess would be highest rated player not already on the super card.
I would guess that it would be linked to points rather than to ratings. Overall, the PDGA typically uses ratings for rough division groupings, but not for more precise ranking/grouping.
Ricky ranked as the #2 point series leader in 2014:
http://www.pdga.com/national-tour/2014/standings#men