Last Updated on 02/03/2026 by Andy Clark
Grosvenor Sport is the online sportsbook operated by Rank Interactive, the same group behind the Grosvenor Casino brand. It is a fully licensed UK sportsbook and one that many horse racing punters will not have an existing account with, which makes the sign-up offer particularly relevant for the 2026 Cheltenham Festival.
The offer is different from the standard free bet model used by most bookmakers. Rather than receiving a free bet token after your qualifying bet settles, Grosvenor gives you an Odds Boost Token that doubles the fractional odds on your first £10 bet. You use it upfront on a bet of your choosing — the boosted odds are applied at the point of placing the bet, and any winnings are paid in cash on settlement. There are no wagering requirements on the winnings and no free bet token that expires unused if your selection loses.
For the Cheltenham Festival, this means you can target a race and a selection of your choice, double the odds, and collect any winnings in cash immediately on settlement. A 5/1 shot becomes 10/1. A 10/1 shot becomes 20/1. The offer is valid for 60 days from registration, giving you the full Festival week and beyond to decide when and where to use it.
How to Claim the Grosvenor Double the Odds Offer
Step 1 — Register. Sign up for a new account at Grosvenor Sport via the link on this page. The offer is only available to new registrations — existing Grosvenor Casino or Grosvenor Sport members do not qualify.
Step 2 — Deposit. Make your first deposit using a debit card or bank transfer. Deposits made via PayPal do not qualify for the welcome offer — if PayPal is your usual method, use a debit card for this first deposit.
Step 3 — Apply your Odds Boost Token. Your Odds Boost Token will be available in your account. When you have chosen your Cheltenham selection, apply the token to your bet before placing it. The token doubles the fractional odds on that bet.
Step 4 — Place your £10 bet. Place your bet at the boosted odds. The maximum stake is £10 — if you stake less than £10, you forfeit the remaining unused portion of the token. To get the full value of the offer, stake the full £10.
Step 5 — Collect your winnings in cash. If your selection wins, your winnings are calculated at the doubled odds and paid in cash to your account on settlement. There are no wagering requirements — the cash is yours to withdraw immediately.
How Double the Odds Works — Worked Examples
The key term to understand is that doubling the odds refers to fractional odds only, and it is the profit from the bet that is doubled — not the total return.
Example 1 — 5/1 shot doubled to 10/1
You back a Cheltenham Supreme Novice Hurdle runner at 5/1 with your £10 stake. Without the Odds Boost Token, your return would be £60 (£50 profit + £10 stake). With the token, the fractional odds are doubled to 10/1. Your profit is £100, total return £110. The extra £50 in winnings is paid in cash.
Example 2 — 10/1 shot doubled to 20/1
You back a Cheltenham handicap runner at 10/1 with your £10 stake. Without the token, your return would be £110. With the token at 20/1, your profit is £200, total return £210. The extra £100 is paid in cash.
Example 3 — Each-way bet at 5/1
Each-way bets are permitted with a maximum of £5 each way (£10 total stake). The odds boost applies to both the win and place parts of the bet. At 5/1 doubled to 10/1, the place return at standard 1/4 odds becomes 2.5/1 rather than 1.25/1. A placed finish at 10/1 with £5 each-way stake returns £17.50 on the place part alone (2.5 x £5 = £12.50 profit + £5 stake) compared to £11.25 without the boost.
What the offer is not:
The Odds Boost Token is not a free bet. If your selection loses you do not receive your £10 stake back — you lose it as with any normal bet. The value of the offer is the enhanced return if your selection wins, not stake protection if it loses. This makes it a different type of offer to the free bet products at most bookmakers, and one that is better suited to punters who have a genuine Cheltenham selection in mind rather than those looking to place a no-risk qualifying bet.
How to Use the Offer at Cheltenham
The Odds Boost Token is most valuable when applied to a bet you were going to place anyway. Here is how to get the most from it across the four days of the Festival.
Target a mid-to-big priced selection. Doubling the odds on a 1/2 favourite adds limited extra value — 1/2 doubled to 1/1 is a marginal improvement. Doubling 6/1 to 12/1 or 10/1 to 20/1 is a significantly more meaningful boost. The Cheltenham Festival produces winners at all price ranges, but the Premier Handicaps and the novice races regularly throw up 8/1 to 16/1 winners — these are the races to target with the token.
Use it on a win single rather than each-way if possible. While each-way bets are eligible, the maximum stake of £5 each-way (£10 total) means the boosted win return is capped at the same level as a £10 win single. If you are confident enough in a selection to back it to win, the £10 win single at doubled odds delivers a higher potential return than splitting the stake each-way.
Pick a race from Tuesday to Friday. You have 60 days from registration to use the token, so there is no urgency to use it on Champion Day if you have not found the right selection. The Gold Cup on Friday afternoon at 4:00pm is a natural target — the race attracts the biggest fields in the staying chase division and regularly produces winners at prices between 5/1 and 16/1. Doubling those odds on a £10 stake can deliver a return of £110 to £340 in cash.
The Premier Handicaps are worth considering. The Fred Winter, Coral Cup, Plate Handicap, Kim Muir, Martin Pipe and County Hurdle all regularly produce big-priced winners. A 14/1 winner doubled to 28/1 on a £10 stake returns £290 in cash. These are the races where the upside from a doubled-odds token is greatest.
The Grosvenor Sport Odds Boost Token — Key Terms
Maximum stake: £10. Each-way bets capped at £5 each way (£10 total).
Use it in full: If you stake less than £10, you forfeit the remainder of the token. Always stake the full £10 to extract maximum value.
Fractional odds only: The doubling applies to fractional odds. If your bookmaker displays decimal odds, convert to fractional before calculating your boosted return. A decimal price of 6.0 is 5/1 — doubled to 10/1, decimal 11.0.
Winnings paid in cash: Any winnings from the boosted bet are paid in cash on settlement, with no wagering requirements. You can withdraw immediately.
60 days to use the token: You have 60 days from registration to apply the token. It does not need to be used on the first bet you place — you can browse the Festival markets and choose your spot before using it.
Not combinable with other offers: The token cannot be used in conjunction with any other Grosvenor promotion.
PayPal deposits excluded: Your first deposit must be made by debit card or bank transfer to qualify. Deposits via PayPal do not qualify.
Sports bets only: The token applies to sport bets only, not casino games.
About Grosvenor Sport
Grosvenor Sport is operated by Rank Interactive (Gibraltar) Ltd, the online arm of The Rank Group — one of the UK’s most established gaming companies, best known for the Grosvenor Casino estate of 50-plus casino venues across the UK. Rank Interactive is fully licensed by the UK Gambling Commission and the Gibraltar Regulatory Authority.
The Grosvenor Sport sportsbook covers all major UK and Irish horse racing including the Cheltenham Festival, Royal Ascot, the Grand National and the Flat Classics, as well as football, tennis, cricket and other sports. It is available on desktop and mobile.
For most horse racing punters, Grosvenor Sport is an account they will not already have, which makes it a straightforward source of a new customer offer for the Festival even for punters who have been active at the major bookmakers for years.
Full Terms and Conditions
- Only valid for new registrations to www.grosvenorcasinos.com. Existing members do not qualify.
- Bet must be placed using real money in combination with the Odds Boost Token.
- Offer applies to Sport bets only. Maximum total stake is £10. Each way bets are a maximum of £5 each way (£10 total stake).
- Deposits made through PayPal will not qualify for the welcome offer.
- If you stake less than £10 you will forfeit the remaining amount of the Odds Boost Token.
- Double the odds refers to fractional odds only. For the avoidance of doubt, it is the profit from the eligible bet that is doubled.
- Extra winnings are paid in cash upon bet settlement.
- Customers have 60 days after registration to use the Odds Boost Token.
- A maximum of 1 offer is available per person, household, IP, device, email address or payment details.
- Member bet limits also apply to Odds Boost Token placement.
- This offer cannot be used in conjunction with any other offer.
- Grosvenor Casinos reserves the right to remove bonus funds and associated winnings should gaming patterns indicating promotional abuse be identified.
- Customers whose accounts have been closed, suspended or are found to have multiple accounts will not be eligible.
- In any dispute, the Grosvenor Casinos management decision will be final.
- Grosvenor Casinos reserves the right to withdraw or amend this offer at any time without prior notice.
- Valid proof of identity, age and residency may be required at any point during the promotion.
- General Terms and Conditions and Sport Betting Rules apply.
- Promoter: Grosvenorcasinos.com & Grosvenorsport.com, operated by Rank Interactive (Gibraltar) Ltd.
18+. New customers only. BeGambleAware.org.
FAQs
Is Grosvenor Sport the same as Grosvenor Casino?
Grosvenor Sport is the sportsbook product operated by the same company — Rank Interactive — that runs Grosvenor Casino. They share a single account login, so if you have an existing Grosvenor Casino account you will not qualify for the new customer sports welcome offer. If you have never registered at either, you are eligible.
Is the Odds Boost Token a free bet?
No. A free bet token means your stake is not at risk — if your selection loses, your stake is returned. The Grosvenor Odds Boost Token doubles your odds but does not protect your stake. If your selection loses, your £10 is gone as with any normal bet. The value is the enhanced return if you win, not protection if you lose.
Can I use the token on an ante-post Cheltenham market?
The terms do not specifically restrict use to day-of-race markets — the token can be applied to any eligible sports bet. Using it on an ante-post market is possible, but given the token doubles your odds, you want to be confident your selection will run. If your horse is a non-runner, the outcome of the bet depends on Grosvenor’s non-runner rules for that market — check before placing ante-post.
Do I have to use the full £10 stake?
To get the full value of the offer, yes. If you stake less than £10, you forfeit the remaining unused portion of the token. A £7 stake with the token gives you the doubled odds on £7, but the remaining £3 of the token is lost. Always stake £10 to extract the maximum value.
What if I want to place an each-way bet?
Each-way bets are eligible with a maximum of £5 each way (£10 total stake). The odds boost applies to both the win and place parts of the bet. This is a good option in the bigger-field races at Cheltenham, where finishing in the first four or five places pays out even if your selection does not win.
When do the winnings arrive?
Winnings from the boosted bet are paid in cash on settlement of the bet, as soon as the race result is confirmed, and the bet is settled in your account.
Other Cheltenham Free Bet Offers
Cheltenham Free Bets Hub 2026 — all sign-up offers for the 2026 Cheltenham Festival
New Bookmakers for Cheltenham 2026 — ten lesser-known bookmakers with Cheltenham sign-up offers
Cheltenham Gold Cup Betting Offers — sign-up and existing customer offers for the Gold Cup on Friday 13th March
Cheltenham Existing Customer Offers — NRNB, BOG, extra places and money back specials for the Festival week
Cheltenham Tips Hub 2026 — ante-post tips and race previews across all four days