Tier 1 - improve your score by 2 correct on 50 quizzes you have played in the past (147 players)
Tier 2 - improve your score by 2 correct on 150 quizzes you have played in the past (71 players)
Tier 3 - improve your score by 2 correct on 500 quizzes you have played in the past (19 players)
Tier 4 - improve your score by 2 correct on 1000 quizzes you have played in the past (5 players)
Tier 5 - improve your score by 2 correct on 1750 quizzes you have played in the past (3 players)
Tier 6 - improve your score by 2 correct on 2500 quizzes you have played in the past (3 players)
Tier 7 - improve your score by 2 correct on 3750 quizzes you have played in the past (6 players)
T7 Club : PHILVV Dagny1 piet stephedm comark2000 ClarkyB