Welcome to Beat The Bookie

Promo & bonus bet conversion scanner

🎁 Bonus Basher

Scan AU bookmakers to find the best conversion rates for your bonus bets.

Betfair lay or bookie-vs-bookie • All sports

How To Promo Bash

Everything you need to know to turn bonus bets into guaranteed cash

💡 What Is Promo Bashing?

Australian bookmakers hand out bonus bets and promo offers to attract new sign-ups and keep existing customers betting. Promo bashing (also called bonus bet conversion) is the process of turning those "free" bonus bets into real, withdrawable cash by hedging - placing an opposing bet so you profit no matter which side wins.

There are two ways to hedge:

vs Betfair (Lay Betting)

You place the bonus bet on a bookmaker (back bet), then lay the same outcome on Betfair Exchange. If your selection wins, the bookmaker pays out but Betfair takes your liability. If it loses, Betfair pays you. Either way you lock in a profit.

Bookie vs Bookie

You place the bonus bet on one bookmaker, then bet on the opposite outcome at a second bookmaker. No exchange account needed, but conversion rates are usually lower.

✅ What You Need

📖 Key Terms

Back Bet Your bonus bet placed on the bookmaker (betting FOR an outcome to win) Lay Bet Betting AGAINST an outcome on Betfair Exchange Hedge Bet The opposing bet that locks in your profit (either a lay on Betfair or a bet on a second bookmaker) Lay Stake How much to wager on Betfair for the lay bet Liability The amount held in your Betfair account to cover the lay bet if it loses - this is returned if your lay wins Conversion % The percentage of your bonus bet you keep as real cash (e.g. 70% conversion on a $100 bonus = $70 profit) SNR Stake Not Returned - the most common type. You only receive the profit, not the original bonus stake SR Stake Returned - you receive both the stake and the profit. Higher conversion rates Commission Betfair takes a % cut of your winning lay bets (usually 5%)

🚀 Step-by-Step: Using the Bonus Basher

  1. 1Open the Bonus Basher - Click "Bonus Basher!" in the sidebar or from the card above.
  2. 2Choose your hedge mode - Select "vs Betfair" for the best conversion rates (recommended), or "Bookie vs Bookie" if you don't have a Betfair account.
  3. 3Pick a sport - Select a specific sport, or choose "All Sports" to scan everything at once. More sports = more opportunities but uses more API quota.
  4. 4Select bookmakers - Choose which bookmaker your bonus bet is on as the Back Bookmaker, or leave as "All" to see every option. In Bookie vs Bookie mode, also pick your hedge bookmaker.
  5. 5Enter your bonus amount - Type in the value of your bonus bet (e.g. $100).
  6. 6Set your Betfair commission - Default is 5%. Check your Betfair account for your actual rate (it may be lower if you have discount rates).
  7. 7Select your bonus type - Pick SNR (Stake Not Returned) or SR (Stake Returned). If you're unsure, it's almost always SNR.
  8. 8Hit "Scan Now" - The tool fetches live odds and calculates the best conversion opportunities. Results are sorted by conversion rate - best deals at the top.
  9. 9Read the card - Each result shows you exactly what to do: which bookmaker to back on, what odds, where to lay/hedge, how much to stake, your liability, and your guaranteed profit.
  10. 10Place both bets FAST - Odds move quickly. Open the bookmaker and Betfair side by side. Place the back bet first (bookmaker), then immediately place the lay bet (Betfair). Double-check the lay stake and odds match.
  11. 11Wait for the event to settle - Once the game finishes, one side pays out and the other side loses. Either way, you keep your guaranteed profit.

📝 Worked Example

You have a $100 SNR bonus bet on Sportsbet and a Betfair account with 5% commission.

The scanner finds:
Melbourne Victory vs Sydney FC

Back: Melbourne Victory @ 3.50 on Sportsbet (bonus bet)
Lay: Melbourne Victory @ 3.60 on Betfair Exchange
Lay Stake: $69.25
Liability: $180.05
Guaranteed Profit: $65.82
Conversion: 65.8%

What you do:

1. Place the $100 bonus bet on Melbourne Victory at 3.50 on Sportsbet

2. Lay Melbourne Victory on Betfair for $69.25 at 3.60 (you need $180.05 in your Betfair account for liability)

What happens:

If Melbourne Victory wins:
Sportsbet pays you: $100 × (3.50 − 1) = $250 (bonus stake not returned)
Betfair lay loses: −$180.05 (liability)
Net: $250 − $180.05 = +$69.95

If Melbourne Victory loses:
Sportsbet: $0 (bonus bet lost - no real money lost)
Betfair lay wins: $69.25 × (1 − 0.05) = +$65.79
Net: +$65.79

Either way you walk away with roughly $66–$70 in real cash from a $100 bonus bet. That's promo bashing.

💎 Tips for Better Results

⚠️ Important Warnings

Odds move fast. The odds shown by the scanner are a snapshot. Always verify the current odds on the bookmaker and Betfair before placing your bets. If the odds have changed significantly, rescan.
Read the bonus terms. Some bonuses have minimum odds requirements, specific sport restrictions, or expiry dates. Make sure your bet qualifies before placing it.
Manage your bankroll. You need real money in your Betfair account to cover the lay liability. Make sure you have enough before placing the back bet.
This is not gambling. When done correctly, promo bashing is a mathematically guaranteed profit. You are not relying on luck - you are locking in a return regardless of the outcome.
⚖️ Disclaimer

Beat The Bookie is an informational tool only. Nothing on this site constitutes financial advice, gambling advice, or a recommendation to place any bet. All calculations are estimates based on third-party odds data which may be outdated or inaccurate at the time of use. Users are solely responsible for verifying all odds, terms, and conditions before placing any bets. Gambling involves risk — never bet more than you can afford to lose. If you or someone you know has a gambling problem, contact Gambling Help Online or call 1800 858 858. By using this tool you acknowledge that Beat The Bookie and its creators accept no liability for any financial losses incurred.