Calculate Bowling Handicap

Bowling Handicap Calculator

Level the playing field for your next league night

Usually 200, 210, or 220
Commonly 80%, 90%, or 100%

Your Bowling Handicap

0

Understanding Your Bowling Handicap

A bowling handicap is a way to equalize competition between bowlers of different skill levels. It acts as a scoring "bonus" added to a bowler's actual score (scratch score) to allow them to compete fairly against more experienced players.

The Handicap Formula

Most leagues use a simple percentage-based formula to determine your handicap:

Handicap = (Basis Score – Bowler's Average) x Percentage

Example Calculation

If you have an average of 160, and your league uses a basis score of 200 with a 90% factor:

  • Subtract average from basis: 200 – 160 = 40
  • Apply percentage: 40 x 0.90 = 36
  • Result: Your handicap is 36 pins per game.

Why use a handicap?

Without a handicap, a beginner with a 120 average would never stand a chance against a veteran with a 210 average. With the handicap system, if both players bowl exactly their average, their total scores (Average + Handicap) would be equal, making the winner the person who performed better relative to their own standard.

function calculateBowlingHandicap() { var average = parseFloat(document.getElementById('bowlerAverage').value); var basis = parseFloat(document.getElementById('basisScore').value); var percentage = parseFloat(document.getElementById('handicapPercentage').value); var resultDiv = document.getElementById('handicapResultContainer'); var valueDiv = document.getElementById('handicapValue'); var explanationDiv = document.getElementById('handicapExplanation'); if (isNaN(average) || isNaN(basis) || isNaN(percentage)) { alert("Please enter valid numbers for all fields."); return; } if (average >= basis) { valueDiv.innerText = "0"; explanationDiv.innerText = "Since your average is equal to or higher than the basis score, your handicap is 0."; } else { var difference = basis – average; var decimalPercent = percentage / 100; var rawHandicap = difference * decimalPercent; // Most leagues drop fractions rather than rounding var handicap = Math.floor(rawHandicap); valueDiv.innerText = handicap; explanationDiv.innerText = "For every game you bowl, add " + handicap + " pins to your scratch score."; } resultDiv.style.display = 'block'; resultDiv.scrollIntoView({ behavior: 'smooth', block: 'nearest' }); }

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