William Hill Vegas — Stake £10, Get 200 Free Spins on Big Bass Splash

Promo Code

This is one of the few offers on the site that requires a promo code at registration. Without it, you'll either get the default offer (which may differ) or no bonus at all.

Some affiliate sources reference an alternative code, WHV200. Both have been observed to trigger the same 200 FS Big Bass Splash offer. Use BBS200 unless the William Hill Vegas registration form prompts otherwise.

What You Get

Register at William Hill Vegas with promo code BBS200, deposit £10, and stake £10 on Big Bass Splash. Once your qualifying stake is placed, 200 free spins at £0.10 each are credited automatically — playable on Big Bass Splash only.

Whatever those 200 spins pay out is added to your bonus balance. To convert any of it to cash, you need to wager 10× the bonus amount on Big Bass Splash within the 72-hour window. The cash you can ultimately withdraw is hard-capped at £30, no matter how much the spins or subsequent wagering generate.

Expected Value Breakdown

The EV here is built from the qualifying stake, the free spins, and the wagering required to convert any winnings — adjusted for the £30 cap and bust risk.

Step-by-Step Guide

1. Register at William Hill Vegas using promo code BBS200
   Go to vegas.williamhill.com and create a new account. Enter promo code BBS200 in the registration form — without it the offer won't trigger. You'll need to complete identity verification. New UK customers only.
2. Make sure you can play for the next 72 hours
   The free spins and any subsequent wagering both have a 72-hour clock. Don't claim this offer if you can't reasonably play through to clear the wagering in that window. If your weekend is busy, claim it on a Monday morning instead.
3. Deposit £10 via debit card
   Make a deposit of at least £10. E-wallet deposits (Skrill, Neteller, PayPal in some cases) typically don't qualify for this offer — use a standard debit card or an instant bank transfer. Check the William Hill Vegas cashier for excluded methods before depositing.
4. Open Big Bass Splash and start staking — but stop just before the £10 mark
   Launch Big Bass Splash in the lobby. Begin placing real-money spins — the qualifying requirement is £10 of stake on this specific game. Track your spend carefully. Stop just before you've cumulatively staked £10. You need to pause and complete step 5 before placing the final qualifying spin.
5. 🔴 Critical: Withdraw remaining cash before the bonus triggers
   This step must happen before you complete the £10 qualifying stake — not after. Once the bonus is credited, it's too late.
   
   Go to the cashier and withdraw your cash balance, leaving only what you need to complete the remaining qualifying stake. For example: if you've staked £9 so far and plan to use a £1 final spin, leave £1 in cash and withdraw the rest.
   
   If your cash balance is below the minimum withdrawal threshold, top up with a small additional deposit, then withdraw the combined amount above the minimum, leaving just enough for that final spin.
   
   The reason: once your free spins are played and any winnings convert to a bonus balance, William Hill's cash-first wagering rule means any cash sitting in your account is wagered before the bonus. Leaving £5 in cash means £5 of your own money gets burned through the wagering before the bonus is even touched. Pull it out now.
6. Place the final qualifying spin and trigger the free spins
   With your cash balance now reduced to the minimum, place your final spin(s) on Big Bass Splash to reach the £10 cumulative stake. The 200 free spins are credited automatically. You may need to refresh the game to see them.
7. Play your 200 free spins on Big Bass Splash
   Use all 200 free spins (each is fixed at £0.10). Anything they pay lands in a separate bonus balance — not cash. Whatever this balance is, that's your starting point for the wagering phase. Don't withdraw the deposit or do anything else with the account until you've played through all 200 spins.
8. Clear the 10× wagering on Big Bass Splash within 72 hours
   If your free spins paid £18, you need to wager £180 on Big Bass Splash. If they paid £25, it's £250. See the wagering strategy section below for stake sizing — the right sizing is the difference between clearing the wagering and busting before you get there.
9. Withdraw — capped at £30
   Once the wagering is complete, your remaining bonus balance converts to cash and is withdrawable up to the £30 cap. Anything above £30 is forfeited. Withdraw promptly — don't leave the balance sitting around, as it's tempting to play it back.

Wagering Strategy — Built Around the £30 Cap

The £30 max win cap changes the optimal stake sizing for this offer. On Buzz Bingo (no cap), you want enough runway to convert wins into cleared wagering. Here, you want to clear the wagering at a balance that lands as close to £30 as possible — going much higher just gets truncated.

If during the wagering phase your balance climbs well above £30 — say to £60 — keep stakes the same and grind through to clear. The cap is on what you can withdraw, not on what your bonus balance can reach. Going from £60 down to £30 is fine; going from £60 down to zero is what you're avoiding.

Conversely, if your balance is low (£5–£8) with most of the wagering still to do, the session is trending toward a bust. Continuing carries significant risk of a zero return. That's a personal call based on your tolerance.

For more on how stake sizing affects bust risk on offers like this, see our Stake Size Strategy guide.

Tips for This Offer

• Withdraw cash before the bonus triggers, not after. The cash-first rule will silently consume your real money against the wagering if you skip this step.
• Plan around the 72-hour clock. If you claim on a Friday evening, you need to clear wagering by Monday evening. A weekday claim with full evenings free is easier.
• Stay on Big Bass Splash for everything. Qualifying stake, free spins, and wagering — all on the same game. The 96.71% RTP version is the standard deployment; using anything else may not contribute to wagering.
• Don't chase the cap. If you've climbed to £25–£30 in bonus balance with most wagering cleared, drop your stake size and play it safe to the finish line. Losing a near-completed session to a bad run is the worst outcome.
• Accept that some sessions will bust. The combination of high volatility, 10x wagering, and a 72-hour clock means a non-trivial fraction of sessions end at zero. The ~£10.94 EV is the average across many sessions, not a guarantee.
• Do the wagering academy article first. If this is your first wagering-requirement offer, read our wagering requirements guide before you deposit.

Heads-up: The William Hill / Evoke Group

William Hill Vegas is operated by Evoke (formerly the merged William Hill / 888 group). Other brands under the same group umbrella include 888 Casino, Mr Green, and Casushi. Operators within a group typically allow only one welcome offer per player per brand family, so if you've already claimed at one of the sister sites, your William Hill Vegas eligibility may be restricted.

This offer is also distinct from the William Hill sportsbook welcome offer (Bet £10 Get £30 in free bets). You can claim the casino welcome OR the sports welcome but not both.

Key Terms & Conditions

• •New UK customers only, aged 18+
• •Promo code BBS200 required at registration
• •Minimum £10 first deposit, debit card or instant bank transfer (e-wallets typically excluded)
• •£10 cumulative stake on Big Bass Splash required to trigger the spins
• •200 Free Spins on Big Bass Splash, valued at £0.10 each
• •Free Spins expire 72 hours after credit
• •FS winnings credited as bonus with 10× wagering on Big Bass Splash
• •Maximum redeemable winnings: £30
• •Cash balance is wagered before bonus balance — withdraw cash before triggering the bonus
• •One welcome offer per customer; not combinable with the sports welcome offer
• •18+ only • BeGambleAware.org

Promotional terms can change. Always check William Hill Vegas's current promotions page before claiming — especially the £30 cap and 72-hour expiry, as these are the load-bearing constraints of this offer.