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Check if an arbitrage opportunity exists across bookmakers and calculate exactly how to split your stake for guaranteed profit.
Enter odds from different bookmakers to check for arb opportunities and optimal stake allocation.
Arbitrage exploits price differences between bookmakers. When odds across different books are out of sync, you can bet on every outcome and lock in a profit.
Different bookmakers price the same event differently. One might offer 2.10 on Team A while another offers 2.05 on Team B.
Add up 1/odds for each outcome. If the total is below 1.00 (below 100%), an arbitrage opportunity exists. The gap below 100% is your profit margin.
Split your total stake proportionally across each outcome so that every result returns the same amount. This calculator does the math for you.
No matter which outcome wins, you receive more than your total stake. The profit is small per bet but risk-free.
Enter odds from two or three bookmakers and know immediately whether an arb exists and how large the margin is.
See exactly how much to place on each outcome to guarantee equal returns. No manual math required.
Works for head-to-head markets (tennis, basketball) and 3-way markets (football 1X2) with an optional third outcome.
Know your guaranteed profit before placing any bets. The calculator shows the exact dollar amount you will gain.
Arbitrage is when odds across different bookmakers let you bet on all outcomes and guarantee a profit regardless of the result. It works when the combined implied probability is below 100%.
Add 1/odds for each outcome. If the total is less than 1, an arb exists. For example: 1/2.10 + 1/2.05 = 0.476 + 0.488 = 0.964. Since 0.964 < 1, this is an arbitrage opportunity.
Typical arbs offer 1-5% profit margins. A $1000 stake might yield $10-$50 guaranteed. Larger margins are rarer. The key advantage is that the profit is risk-free.
Yes. Enter odds for all three outcomes (e.g. home win, draw, away win in football). The third outcome field is optional for 2-way markets like tennis or basketball.
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