User blog comment:AYET/2013 Devil Fruits Tournament - Voting Eligibility For The Final Two Rounds/@comment-12413503-20130731151543/@comment-5962458-20130731154454

"participants that has an attendance record of greater than 3/4 (or 1/2, to be decided upon)"

Greater than 1/2 *22=11 means 12 or higher.