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Surebet Guide 2025
How to Identify, Calculate, and Profit from Surebets in Ireland

What Is a Surebet?

A surebet (also known as arbitrage bet, miracle bet, or arb) is a risk-free betting opportunity where you place bets on all possible outcomes of a sporting event across different bookmakers.

By exploiting the differences in odds, you can guarantee a profit regardless of the event’s result.

Simply put, surebets leverage varying bookmaker odds to ensure a winning return no matter what happens.

Best Bookmakers to Place SureBets

LunuBet

5/5
5.0
Bonus: €150 , +25 free bet

18+ | New players only | Min. deposit €20 | Max number of winnings using bonus funds is €10,000 | Bonus validity 14 days from receipt | Free spins given within 5 days from bonus activation, Wagering req. : 6x bonus + deposit | Wagering, banking, T&C apply | Play Responsibly

DirectionBet

4.9/5
4.9
Bonus: €100

18+ | New players only | Min. deposit €10 | Max number of winnings using bonus funds is €10,000 | Bonus validity 14 days from receipt | Wagering req. : 16x bonus | Wagering, banking, terms & conditions apply | Play Responsibly

Betovo

4.8/5
4.8
Bonus: €1000

18+ | New players only | Min. deposit €10 | Wagering, banking, T&C apply. | Play Responsibly | www.gambleaware.org

How to Identify a Surebet

Calculate the implied probabilities from all outcome odds and sum them. If the total is less than 100%, you have a surebet opportunity.

Sum of implied probabilities=1odds1+1odds2+…+1oddsn<1

Example: Tennis Match

  • Djokovic at 2.10 → implied probability: 12.10=47.6%

  • Nadal at 2.10 → implied probability: 47.6%

Sum: 95.2%<100% → Indicates a surebet.

How to Calculate Stakes

Allocate your total stake proportionally to each outcome for guaranteed equal returns:

Stake per outcome=1odds of outcomeSum of all implied probabilities×Total Stake

Using the tennis example with a €100 total stake:

  • Bet on Djokovic: approx. €48.75

  • Bet on Nadal: approx. €51.25

Payout remains roughly equal regardless of the winner, locking in profit.

Steps for Placing a Surebet

.01

Register with multiple sportsbooks.

.02

Identify surebet opportunities by comparing odds.

.03

Calculate stakes precisely.

.04

Place bets quickly to avoid odds shifts.

Surebetting Tips

Verify markets and odds are valid before betting.
Focus initially on pre-match surebets due to stable odds.
Maintain multiple bookmaker accounts (3-5 recommended).
Manage your bankroll carefully.
Be aware bookmakers may limit accounts or void bets on arbitrage activity.

Risks of Surebetting

Odds can be withdrawn or changed pre-settlement.
Live odds fluctuate rapidly, complicating live surebets.
Betting limits and account restrictions may be imposed.
Bookmakers may close or restrict accounts for arbitrage trading.

FAQ

Pre-match surebets with gradual odds changes.

Pre-match bets placed before event start; live surebets occur during active events with fast-odds movement.

At least two, ideally three to five for more opportunities.

Odds changes, stake limits, and account restrictions.