Handicap is based on the highest yearbook average from last years average book.f there is no yearbook average, you may use a current league average with at least 21 games bowled & you must bring proof of average (league sheet).  If no average including non certified, use 130 for women and 170 for men. Failure to report correct average could result in disqualification.Plaza Lanes reserves the right to re-rate any bowler.