Bowling Handicap Calculator

This works out the handicap a bowling league gives you for the gap between your average and the league basis score. Enter your average, or the total pinfall and games behind it, then the basis and the percentage from your rule sheet, and it returns the handicap per game, the handicap score and the series total. Both the average and the handicap drop their fraction rather than rounding, which is the USBC rule and is worth a pin in a close match. It does not score a game from the rolls, and it does not know your league's rule sheet, so check the basis and the percentage there.