Enter your back bet and exchange details. We calculate the lay stake and show profits if the back or lay side wins.
Result
Lay Stake: Profit If Back Wins: Profit If Lay Wins: Guaranteed Minimum Profit:
Profits shown account for commission on the lay side. Before placing the bet, check the liability the exchange will hold from your balance — it is the lay stake × (lay odds − 1), not the stake itself.
Lay betting on exchanges helps you hedge or trade positions by opposing your original pick. Use it to balance outcomes, reduce variance, and, when prices allow, lock in profit after commission.
How Lay Betting Works (Stake, Liability, Commission)
When you lay a selection, you accept someone else's back bet. Your potential loss is the liability: (Lay Odds - 1) × Lay Stake. Exchanges charge commission on net winnings when your lay side wins. Our Lay Bet Calculator derives a practical, commission‑aware lay stake and shows profits for both scenarios.
Lay Betting Strategies
Equal‑profit lay: target similar profit whether the back or lay side wins (after commission).
Skewed lay: favor one scenario (keep more EV on your original edge) while capping downside.
In‑play trading: exploit price swings but ensure liquidity and confirm matched stakes.
Risks & Considerations
Commission and partial matches can reduce or distort the intended hedge.
Low liquidity or stake limits may prevent full execution at quoted odds.
Rule differences (voids, cancellations) across books and exchanges can break parity.
Practical Tips
Compare multiple exchanges and bookmakers for best opposing prices and lower fees.
Track stake, odds, commission, and resulting guaranteed profit to refine timing.
Round stakes sensibly and recheck liability to avoid unexpected exposure.
Common Lay Betting Mistakes
Underestimating liability — laying at high odds (10.00+) means your liability is 9× the backer's stake; always check your exposure before confirming
Forgetting exchange commission — the 2-5% commission on winning lay bets reduces your actual profit; factor this into your calculations
Laying odds that are too short — laying at 1.10 gives you $10 profit for $100 risk, a terrible risk-reward ratio unless part of a matched betting strategy
Lay Betting Examples
Basic Lay Bet
You lay a football team at 3.50 for a $20 backer's stake on a betting exchange. Your liability is $20 × (3.50 - 1) = $50. If the team loses (your desired outcome), you win the $20 backer's stake minus 5% commission = $19. If the team wins, you pay out $50. Lay betting requires higher capital but gives you the bookmaker's role.
Matched Betting with Lay
You have a free $50 bet (stake not returned) at odds of 4.00 — worth $150 profit if it wins. You lay the same selection at 4.20 with 5% commission. The optimal lay stake is $36.14, with a liability of $115.65. If the back bet wins: $150 from the bookmaker minus $115.65 liability = $34.35. If it loses: $36.14 × 0.95 = $34.33 from the exchange. Either way you convert the free bet into about $34 of guaranteed cash — roughly 69% of its face value.
Matched Bet Calculator.
Pre-Match Trading: Back Then Lay
You back a tennis player at 3.00 for $100 before the match. Positive news breaks and the odds drop to 2.20. You now lay at 2.20 for $136.36. If the player wins: back wins $200, lay costs $163.64 = $36.36 profit. If the player loses: back loses $100, lay wins $129.54 = $29.54 profit. You've locked in profit regardless of the outcome — this is a green book.
Hedge Calculator.
Exchanges charge commission on your net winnings in a market, not on stakes. When your lay wins (the selection loses), you collect the backer's stake minus commission; when your lay loses, you pay the full liability and owe nothing extra. That asymmetry is why the calculator applies commission only to the lay-win scenario.
Yes. The calculator's output is the equal-profit baseline, but you can steer the position: lay less to keep more profit on your back side (if you still fancy your original bet), or lay more to shift profit towards the lay side. The equal-profit stake is simply the point where you are indifferent to the result.
Yes — an unmatched or partially matched lay leaves your hedge incomplete. Only the matched portion counts: if just half your lay stake matches, half your back position is still fully exposed. Confirm the matched amount on the exchange before assuming the guaranteed profit shown here.
