Due to the vast difference in skill level between the Open and AA divisions, the following additional rules apply only to Open players. If a player has broken pool in 50% or more of the Open events that he/she has played in a given summer, he/she is ineligible to play in AA, regardless of partner and until such time as their “Open-pool-breaking” percentage drops to below 50%. If a player has advanced to the semifinals (or farther) of an Open event, that player is ineligible to play AA for the remainder of that summer, regardless of partner.