Free Hedge Bet Calculator

What Is Hedge Betting?

Hedge betting means placing a second bet on the opposite outcome of an existing wager to guarantee a profit or minimize potential loss. It works because odds shift over time. If you placed a bet at favorable odds and the market has since moved in your favor, you can lock in that value by betting the other side at current prices.

Think of it like selling a stock that has gone up. You bought low, the price rose, and now you are cashing out. In betting terms, you took a position at good odds, the situation changed (your team won early rounds, or the market repriced), and now you can "sell" by hedging the opposite outcome.

The trade-off is straightforward: hedging sacrifices maximum upside for guaranteed profit. If you hedge perfectly, you make the same amount regardless of which side wins. If you don't hedge, you either win big or lose everything.

The Hedge Stake Formula

To lock in equal profit on both outcomes, you need to calculate the exact hedge stake. The formula is:

hedge_stake = (original_stake x original_decimal_odds) / hedge_decimal_odds

This ensures that the total payout is the same whether your original bet or your hedge bet wins. The guaranteed profit is then:

profit = (original_stake x original_decimal_odds) - original_stake - hedge_stake

Need to convert your odds first? Use the odds converter to switch between American, decimal, fractional, and probability formats.

Worked Example

You bet $100 on the Lakers to win the NBA Championship at 10.00 (decimal) before the season. They make the Finals, and you can now hedge by betting on their opponent at 1.65. Here is the math:

1. Hedge stake: ($100 x 10.00) / 1.65 = $606.06
2. If Lakers win: $100 x 10.00 = $1,000 payout - $100 original - $606.06 hedge = $293.94 profit
3. If opponent wins: $606.06 x 1.65 = $1,000 payout - $606.06 hedge - $100 original = $293.94 profit
4. Total invested: $100 + $606.06 = $706.06
5. ROI: $293.94 / $706.06 = 41.6%

Guaranteed $293.94 regardless of the outcome. The calculator above handles this automatically -- just plug in your numbers.

When to Hedge a Bet

Not every open bet is worth hedging. Here are the situations where hedging makes the most sense:

Futures Bets

Futures bets are the most common hedging scenario. You take a long-shot at the start of a season, and as your team advances, the odds shorten dramatically. A $50 bet at 25.00 becomes worth hedging when your team reaches the final and the other side is priced at 1.80.

Live and In-Play Bets

During a live game, odds fluctuate rapidly based on score changes, momentum shifts, and time remaining. If you took a pre-game position and the live odds have moved significantly in your favor, hedging during the game locks in profit. Learn more about live in-play arbitrage strategies.

Parlays and Accumulators

Multi-leg parlays become exponentially more valuable as legs win. If you have a 5-leg parlay and the first 4 have already won, the remaining leg's value is enormous. Hedging the final leg guarantees you walk away with profit regardless.

Prediction Market Positions

On platforms like Kalshi and Polymarket, positions can gain substantial value as events unfold. If you bought Yes contracts at 30 cents and the price is now 80 cents, you can sell (or buy No) to lock in the gain. Cross-platform hedging -- buying on one exchange and hedging on another -- can sometimes yield even better prices.

Free Bet Hedging Strategy

Free bets (also called bonus bets) are promotional offers from sportsbooks. Most free bets do not return the stake -- you only receive the profit portion if the free bet wins. This makes hedging the optimal strategy to convert free bets into guaranteed cash.

The formula for free bet hedging (when stake is not returned) is:

hedge_stake = (free_bet_amount x (free_bet_decimal_odds - 1)) / hedge_decimal_odds

The key to maximizing free bet conversion is finding the highest possible odds for your free bet and the lowest possible odds for the hedge. Use a long-shot for the free bet (high decimal odds) and hedge on the opposing favorite. A typical conversion rate is 60-80% of the free bet's face value.

Free Bet Example

You receive a $50 free bet. You place it on an underdog at 6.00 decimal odds. The opposing favorite is available at 1.20 on a different sportsbook.

1. Free bet profit if it wins: $50 x (6.00 - 1) = $250 (stake not returned)
2. Hedge stake: $250 / 1.20 = $208.33
3. If free bet wins: $250 - $208.33 = $41.67 profit
4. If hedge wins: $208.33 x 1.20 - $208.33 = $41.67 profit
5. Conversion rate: $41.67 / $50 = 83.3%

You converted a $50 free bet into $41.67 of real cash with zero risk. Use the Free Bet Hedge tab in the calculator above to find your optimal conversion.

Hedging vs. Letting It Ride

The decision to hedge or let a bet ride depends on expected value. If your original bet still has positive expected value at the current odds, a pure EV maximizer would not hedge. Use the EV calculator to check whether your open bet is still +EV.

However, expected value assumes infinite repetitions. In reality, you only get one shot at each bet. Hedging makes sense when:

• The potential loss is large relative to your bankroll. Losing a $500 parlay that could have been hedged for $200 guaranteed hurts more than the EV math suggests.
• You need the money. Utility of money is not linear. A guaranteed $300 might be worth more to you than a 50/50 shot at $600.
• You want to reduce variance. Professional bettors sometimes hedge large positions to smooth returns, even at a slight EV cost.

There is no universally "correct" answer. The optimal hedge depends on your personal risk tolerance and financial situation. What matters is understanding the math behind both choices, which this calculator and the arbitrage calculator guide provide.

Hedging Across Multiple Sportsbooks

To get the best hedge, shop for odds across multiple sportsbooks and prediction markets. The better the hedge odds, the more profit you lock in. This is closely related to sports arbitrage betting, where you exploit price differences across venues. Tools like Claw Arbs automatically scan odds across Kalshi, Polymarket, Pinnacle, and other venues to find the best available prices for both sides of a market.

Frequently Asked Questions

What is hedge betting?

Hedge betting is placing a second bet on the opposite outcome of an existing wager to reduce risk or lock in guaranteed profit. If you have an open bet that is now more likely to win than when you placed it, the odds on the other side will have shifted in your favor. By betting the other side at the new odds, you can guarantee a profit regardless of which outcome wins. Hedging sacrifices maximum upside for certainty.

When should you hedge a bet?

You should consider hedging when: (1) You have a futures bet or parlay that has significantly increased in value and you want to lock in profit. (2) The remaining risk is large relative to your bankroll. (3) You have a live bet where the situation has changed and the odds have moved in your favor. (4) You want to guarantee a return on a free bet or bonus. Hedging is not always optimal -- if your original bet still has positive expected value, letting it ride may be more profitable long-term.

How do you calculate the hedge stake?

To guarantee equal profit on both outcomes, use the formula: hedge_stake = (original_stake x original_decimal_odds) / hedge_decimal_odds. For example, if you bet $100 at 3.00 and can now hedge at 1.50: hedge_stake = ($100 x 3.00) / 1.50 = $200. The guaranteed profit is the total payout minus your total investment. The calculator above handles this automatically for all odds formats.

Can you hedge prediction market bets?

Yes, prediction markets like Kalshi and Polymarket are ideal for hedging. On Kalshi, you can buy Yes contracts on one side and No contracts to hedge. On Polymarket, you can sell your existing position or buy the opposite side. Because prediction market prices move frequently and differ across platforms, you can often hedge at favorable odds. Cross-platform hedging -- buying on Kalshi and hedging on Polymarket or vice versa -- can sometimes lock in arbitrage profit even without an original position.

What is the difference between hedging and arbitrage?

Hedging and arbitrage both involve betting on multiple outcomes, but they differ in timing and intent. Hedging starts with an existing bet and places a second bet later to reduce risk or lock in profit after odds have moved. Arbitrage places bets on all outcomes simultaneously, exploiting price differences across bookmakers to guarantee profit from the start. Hedging is reactive (you adjust an existing position), while arbitrage is proactive (you find and execute the opportunity in one go).

Should you always hedge for equal profit?

Not necessarily. Equal profit hedging (where you guarantee the same profit regardless of outcome) is the most common approach, but you can also hedge partially. A partial hedge locks in some profit while still leaving upside if your original bet wins. The optimal hedge depends on your risk tolerance, bankroll size, and whether the original bet still has positive expected value. If the original bet is still +EV, a partial hedge or no hedge at all may maximize long-term returns.