How We Score Casino and Betting Offers
Casino Bonuses
Value is driven by RTP × wagering × max cashout. A £100 bonus with 35x wagering at 96% RTP typically returns about £60 — if you can withdraw it.
Free Bet Offers
Value is driven by conversion rate × restrictions × usage probability. A £30 free bet typically converts to £18-21 of withdrawable cash.
How We Rate Casino Bonuses
Six metrics weighted by real-world impact on your expected return.
- 20% — Max Win Cap
- 15% — Min Deposit
- 25% — Wagering
- 10% — Expiry
- 10% — Terms Clarity
- 20% — Real Value
Real Example: Mecca Bingo £5 Deposit Bonus
The Offer
- Deposit £5, get 50 free spins
- Spins valued at £0.10 each = £5 total value
- Max win capped at £50
- 4x wagering on winnings
The Maths
- Your deposit:
- Spin value (50 × £0.10):
- Expected win at 96% RTP:
- Wagering (£4.80 × 4x):
- Expected after wagering:
- Real value of “£5 bonus”:
Verdict: Low 4x wagering makes this a good-value offer. The £50 cap is fair for a £5 deposit.
Overall Casino Score
- 40% — Bonus Value Score
- 60% — Operator Quality
How We Rate Free Bet Offers
Free bets are scored on conversion probability — how much of the headline value becomes withdrawable cash.
- 30% — Cash Equivalent
- 15% — Promo Friction
- 20% — Odds Restrictions
- 15% — Withdrawal Terms
- 10% — Expiry
- 10% — Real Value
Real Example: Bet £20 Get £30 Free Bet
The Offer
- Bet £10 on any sport at odds 1/2 (1.5)+
- Get £30 in free bets (3 × £10)
- Singles allowed
- Stake not returned on free bets
The Maths
- Your qualifying bet:
- Free bet face value:
- Stake returned:
- Typical conversion rate:
- Real value of £30 free bet:
Example: Put £10 free bet on Man United at 2.5 (6/4). If they win, you get £25 (not £35, because stake isn’t returned). Expected value per £10 free bet ≈ £6.50-7.
The Three Things That Matter Most
- Stake Returned? — A £10 free bet at 5/1 pays £60 if stake returned, only £50 if not. This single factor swings value by 20%+.
- Singles Allowed? — Acca-only free bets have much higher bust rates. Singles give you control over conversion.
- Min Odds — High minimum odds (2.5+) drastically reduce your ability to extract value from the offer.
Overall Bookmaker Score
- 40% — Free Bet Value Score
- 60% — Operator Quality
See Our Ratings in Action
Browse all analysed offers ranked by real-world value, not marketing hype.