Quick Answer — How a Bowling Handicap Is Calculated
A bowling handicap is extra pins added to a bowler's actual score so bowlers of different skill levels can compete fairly. The formula is simple: Handicap = (Basis Score - Average Score) × Percentage Factor, with any fractional pin dropped (never rounded) and the result floored at 0 if your average is at or above the basis score.
The basis score is a benchmark set by the league or tournament — commonly 200, 210, or 220 — chosen to sit above what any bowler in the field is expected to average. The percentage factor, also set by the league, is typically 80%, 90%, or 100%; it controls how much of the gap between your average and the basis gets converted into handicap pins.
Once you have a handicap, your handicap score for any game is just Handicap Score = Game Score + Handicap. This is the number that actually counts toward standings in a handicap league or tournament.