Golf Handicap Calculator
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f8f9fa;
color: #333;
line-height: 1.6;
margin: 0;
padding: 20px;
}
.loan-calc-container {
max-width: 700px;
margin: 30px auto;
background-color: #ffffff;
padding: 30px;
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
h1, h2 {
color: #004a99;
text-align: center;
margin-bottom: 20px;
}
.input-group {
margin-bottom: 20px;
display: flex;
flex-wrap: wrap;
align-items: center;
gap: 15px;
}
.input-group label {
flex: 1 1 150px;
font-weight: bold;
color: #004a99;
min-width: 120px;
}
.input-group input[type="number"] {
flex: 2 1 200px;
padding: 12px 15px;
border: 1px solid #ccc;
border-radius: 5px;
font-size: 1em;
box-sizing: border-box;
}
.input-group input[type="number"]:focus {
border-color: #004a99;
outline: none;
box-shadow: 0 0 5px rgba(0, 74, 153, 0.3);
}
button {
display: block;
width: 100%;
padding: 15px;
background-color: #28a745;
color: white;
border: none;
border-radius: 5px;
font-size: 1.1em;
cursor: pointer;
transition: background-color 0.3s ease;
margin-top: 10px;
}
button:hover {
background-color: #218838;
}
#result {
margin-top: 30px;
padding: 20px;
background-color: #e7f3ff;
border: 1px solid #004a99;
border-radius: 5px;
text-align: center;
}
#result h3 {
margin-top: 0;
color: #004a99;
font-size: 1.4em;
}
#handicapValue {
font-size: 2.5em;
font-weight: bold;
color: #28a745;
}
.article-content {
margin-top: 40px;
padding: 25px;
background-color: #fff;
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}
.article-content h2 {
color: #004a99;
text-align: left;
margin-bottom: 15px;
}
.article-content p, .article-content ul, .article-content li {
color: #555;
margin-bottom: 15px;
}
.article-content code {
background-color: #f0f0f0;
padding: 2px 5px;
border-radius: 3px;
}
.article-content strong {
color: #004a99;
}
@media (max-width: 600px) {
.input-group {
flex-direction: column;
align-items: stretch;
}
.input-group label {
margin-bottom: 5px;
flex-basis: auto;
}
.input-group input[type="number"] {
flex-basis: auto;
width: 100%;
}
}
Golf Handicap Calculator
Your Estimated Handicap Index
Understanding Your Golf Handicap
A golf handicap is a numerical measure of a golfer's potential playing ability. It's designed to allow players of different skill levels to compete against each other fairly. The handicap system aims to level the playing field by adjusting scores based on a player's past performance and the difficulty of the courses they play.
How is a Golf Handicap Calculated?
The most common method for calculating a golf handicap index involves using your recent scores and factoring in the difficulty of the golf course played, as represented by the Course Rating and Slope Rating.
- Score: This is the gross number of strokes you took to complete the round of golf.
- Course Rating: This represents the average gross score a scratch golfer (a golfer with a 0 handicap) is expected to achieve on a particular course under normal course and weather conditions. It's typically around par for the course but can vary based on length, obstacles, etc.
- Slope Rating: This measures the relative difficulty of a course for a golfer who is not a scratch golfer compared to a scratch golfer. A higher slope rating indicates a more difficult course for the average golfer. A standard slope rating is 113.
The Calculation Formula:
The core calculation for a single round's handicap differential is:
Handicap Differential = (Adjusted Gross Score - Course Rating) * (113 / Slope Rating)
In this calculator, we simplify it by directly using your score as the Adjusted Gross Score. For official handicaps, there are specific rules about "net double bogey" adjustments to your score before applying this formula.
Your Handicap Index is typically an average of your best Handicap Differentials from your most recent 8 scores (out of the last 20 played). However, for simplicity in this immediate calculation, we provide a single-round estimate based on the provided inputs. To get an official Handicap Index, you'll need to submit multiple scores to a recognized handicapping authority.
Using This Calculator:
To use this calculator:
- Enter your most recent golf score.
- Input the Course Rating of the course you played. This can usually be found on the scorecard or course website.
- Input the Slope Rating of the course. This is also typically found on the scorecard or course website.
- Click "Calculate Handicap".
The result will give you an estimated handicap differential for that specific round. Remember, a true Handicap Index is an average of several differentials.
Why is a Handicap Important?
A handicap allows golfers of all abilities to play competitive matches against each other. In a handicapped game, strokes are typically given or received based on the difference in handicaps, making the competition more meaningful for everyone involved.
function calculateHandicap() {
var scoreInput = document.getElementById("score");
var courseRatingInput = document.getElementById("courseRating");
var slopeRatingInput = document.getElementById("slopeRating");
var resultDiv = document.getElementById("result");
var handicapValueDiv = document.getElementById("handicapValue");
var resultMessageP = document.getElementById("resultMessage");
var score = parseFloat(scoreInput.value);
var courseRating = parseFloat(courseRatingInput.value);
var slopeRating = parseFloat(slopeRatingInput.value);
if (isNaN(score) || isNaN(courseRating) || isNaN(slopeRating)) {
resultDiv.style.display = "block";
handicapValueDiv.textContent = "N/A";
resultMessageP.textContent = "Please enter valid numbers for all fields.";
return;
}
if (slopeRating <= 0) {
resultDiv.style.display = "block";
handicapValueDiv.textContent = "N/A";
resultMessageP.textContent = "Slope Rating must be a positive number.";
return;
}
// Calculate Handicap Differential for a single round
var handicapDifferential = (score – courseRating) * (113 / slopeRating);
// For simplicity, we display this single differential as an "Estimated Handicap"
// An official Handicap Index is an average of multiple differentials.
handicapValueDiv.textContent = handicapDifferential.toFixed(2);
resultMessageP.textContent = "This is your Handicap Differential for this round. Your official Handicap Index is an average of your best differentials from recent rounds.";
resultDiv.style.display = "block";
}