Matched Betting Calculator
Turn bookmaker free bets into guaranteed cash — no gambling required
REAL EXAMPLESportsbet gives you a A$50 free bet. Back any selection at 4.00, lay on the exchange at 4.20. Result: ~A$37 profit guaranteed — win or lose, every time.
1Bet at the bookmaker to unlock your free bet
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2Cover the same bet on the exchange to cancel out the risk
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3Receive your free/bonus bet (tiny qualifying cost)
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4Use the Free Bet tab below → pocket ~75% as cash
Deposit Match — 1-Step Calculator
Got a deposit match offer (e.g. "deposit A$50, get A$50 bonus")? Skip the two-step process. Back the same selection twice at the bookie — once with your real money, once with the bonus bet — then lay the combined exposure at the exchange in one go. Profit is locked in regardless of result.
1Back Team A with your A$50 deposit at the bookie
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2Use the A$50 bonus bet also on Team A (same game)
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3Lay Team A at the exchange for the combined amount — done
A$
Your deposit = your bonus amount (e.g. $50 deposit → $50 bonus)Odds close to 2.00 work best — minimises qualifying loss
Find on Betfair/Sportsbet Exchange for the same selection
RESULTS — 1 GAME, DONE
LAY STAKE (EXCHANGE)A$73.17
GUARANTEED PROFITA$19.5139.02% of deposit extracted
EXCHANGE LIABILITYA$80.49Funds needed on exchange
If Back Wins+A$19.51
If Lay Wins+A$19.51
vs. Traditional 2-step: extraction is similar at low odds but you only need one game and one lay — much faster. Use odds ~2.00 for best results.
EXTRACTION RATE REFERENCE
For SNR free bets: higher back odds = higher extraction rate. These are estimates at 5% exchange commission with a 2-3% odds spread.
| Back Odds | Est. Extraction Rate | Rating |
|---|---|---|
| 2.00 | 46.3% | Avoid |
| 3.00 | 61.3% | Good |
| 4.00 | 68.7% | Good |
| 5.00 | 73.8% | Good |
| 6.00 | 76.0% | Excellent |
| 8.00 | 79.6% | Excellent |
Want this done for you?
22 AU promos mapped, step-by-step. A$755+ extractable.
The Pro Promo Tracker shows you exactly which bonuses to hit, in what order — with pre-calculated lay stakes, exchange amounts, and progress tracking.