Hedge Bet Calculator

Hedging means backing the other side of a bet you already hold, so that both outcomes pay. It converts an uncertain result into a certain, smaller one.

Enter the original bet and the price now available on the opposite side. The calculator returns the full hedge stake, what each outcome pays, and what you are giving up to remove the risk.

The Calculation

The full hedge stake is the one that makes both outcomes pay the same amount. With S as the original stake, dA as the original decimal price and dB as the decimal price on the other side:

Hedge stake = (S × dA) ÷ dB

Worked example. You hold $100 at +900 on a team to win a championship, and they have reached the final. The other team is now -200 to win it.

In decimal, +900 is 10.00 and -200 is 1.50. Hedge stake = (100 × 10.00) ÷ 1.50 = $666.67.

If your original bet wins: $900 profit minus the $666.67 hedge = +$233.33. If the hedge wins: $666.67 × 0.50 = $333.33 profit, minus the $100 original = +$233.33. The same either way, on a total outlay of $766.67, a 30.4% return.

Letting it ride is a 50-50-ish shot at $900 instead of a certain $233.33. Which is better depends entirely on what the $900 means to you, and that is not a question the arithmetic answers.

When A Hedge Is Impossible

A guaranteed profit only exists if the other side is long enough. The threshold is dA ÷ (dA − 1) in decimal.

For the +900 example that is 10 ÷ 9 = 1.111, or about -900. Any price longer than -900 on the other side locks in something; anything shorter does not. So if the opponent had been -1200, no hedge produces a profit — the best available is a smaller loss, which is a legitimate thing to want but not a hedge in the usual sense.

The calculator prints this threshold, and it is the first thing to check before doing any of the rest. Bettors talk themselves into "locking in" positions that mathematically cannot be locked, then discover they have converted a live ticket into a guaranteed small loss.

Partial Hedges And What You Are Buying

A full hedge is rarely the right answer. It removes all the variance and all the upside, and it pays the vig on the whole position to do it.

A partial hedge — staking less than the full amount — keeps some exposure while guaranteeing you cannot lose. Take back your original stake and let the rest ride, or hedge enough to guarantee a specific figure. Enter any hedge stake in the calculator and it shows both outcomes, so the shape of the trade-off is visible.

The clean way to decide is expectation versus utility. If the price on the other side has more vig than the edge you originally had, hedging is negative-expectation and you are buying certainty with money. That can be entirely rational — a life-changing sum is worth more certain than a larger sum probably — but it should be a decision rather than a reflex.

Hedging, Middling And Arbitrage

Three related manoeuvres, often confused.

Hedging covers a position you already hold, usually because the price moved in your favour. Both outcomes pay the same.

Middling takes two sides at different numbers so that a result between them wins both. Betting a game at +7 and later at -4.5 wins twice if the margin lands on 5 or 6. The downside is one vig payment rather than a loss.

Arbitrage takes two sides simultaneously at prices whose implied probabilities total under 100%, so the profit is locked from the start rather than created by a line move. The arbitrage calculator handles that case.

All three depend on holding accounts at several books and on getting the stakes right the first time, and all three attract attention: consistent hedging and arbing is the fastest route to limits. Futures betting covers the position most hedges arise from in the first place.

Frequently Asked Questions