Run Line Calculator
The Run Line Calculator is a tool used in sports betting, particularly in baseball, to help bettors understand the potential payout for a bet placed on the run line. The run line is a handicap set by oddsmakers to level the playing field between two teams, usually set at 1.5 runs. A team favored to win is typically -1.5 runs (meaning they must win by 2 or more runs), while the underdog is +1.5 runs (meaning they can win outright or lose by 1 run). The odds associated with these run lines determine the potential payout.
Calculate Payout
Potential Payout:
Enter your bet amount and run line odds to see the potential payout.
function calculateRunLine() {
var betAmount = parseFloat(document.getElementById("betAmount").value);
var runLineOdds = parseInt(document.getElementById("runLineOdds").value);
var payoutResultElement = document.getElementById("payoutResult");
if (isNaN(betAmount) || isNaN(runLineOdds)) {
payoutResultElement.textContent = "Please enter valid numbers for bet amount and odds.";
return;
}
var potentialPayout;
if (runLineOdds >= 0) {
// Positive odds (e.g., +130)
// Payout = (Odds / 100) * Bet Amount
potentialPayout = (runLineOdds / 100) * betAmount;
} else {
// Negative odds (e.g., -110)
// Payout = (100 / abs(Odds)) * Bet Amount
potentialPayout = (100 / Math.abs(runLineOdds)) * betAmount;
}
// The total return includes the original bet amount
var totalReturn = betAmount + potentialPayout;
payoutResultElement.textContent = `Potential Profit: $${potentialPayout.toFixed(2)}. Total Return: $${totalReturn.toFixed(2)}`;
}
.calculator-container {
font-family: sans-serif;
max-width: 500px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
box-shadow: 2px 2px 8px rgba(0,0,0,0.1);
}
.calculator-container h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.calculator-container p {
line-height: 1.6;
color: #555;
margin-bottom: 20px;
}
.inputs {
display: flex;
flex-direction: column;
gap: 15px;
margin-bottom: 20px;
}
.input-group {
display: flex;
flex-direction: column;
}
.input-group label {
margin-bottom: 5px;
font-weight: bold;
color: #444;
}
.input-group input {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 16px;
}
button {
display: block;
width: 100%;
padding: 12px 15px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
font-size: 18px;
cursor: pointer;
transition: background-color 0.3s ease;
margin-bottom: 20px;
}
button:hover {
background-color: #0056b3;
}
#result {
background-color: #f9f9f9;
padding: 15px;
border-radius: 4px;
border: 1px dashed #ddd;
}
#result h3 {
margin-top: 0;
color: #333;
}
#payoutResult {
font-size: 18px;
color: #007bff;
font-weight: bold;
text-align: center;
}