The Online Casino US Open Cashback: 10% Back up to £500

The Online Casino is offering a short-term cashback deal for sports bettors during the 2026 US Open. Customers who meet the promotional requirements can receive 10% of qualifying tennis losses back, with a maximum cashback payment of £500.

The offer is tied to the US Open, but it does not run for the entire tournament. The qualifying period is limited to 23-26 August 2026.

How to claim the US Open Cashback

Joining the promotion requires a deposit of £10 or more through the sportsbook cashier. When making the deposit, players must enter the promotional code USA10.

After depositing, eligible customers can place real-money bets on tennis. If the qualifying deposit finishes at a loss during the promotional window, 10% of those eligible losses can be returned as cashback, subject to the £500 maximum.

Which bets count towards the cashback?

Only single bets on tennis placed with real money are included. The wagers also need to be settled before they can be used in the cashback calculation.

Multiple bets and chain bets are excluded, so players using accumulators will not generate qualifying losses under this promotion.

Cashback is credited as a bonus with a 0x wagering requirement. This means there is no further playthrough requirement attached to the reward. The payment is added to the player’s real-money balance within 7 days, after which it can be withdrawn or used for regular, non-promotional betting.

Terms and conditions of the promotion

The Online Casino US Open Cashback promotion starts at 00:00 GMT on 23 August 2026 and ends at 23:59 GMT on 26 August 2026.

Customers must be 18 or over and eligible to receive bonuses. A minimum deposit of £10 is required, and the deposit must be completed through the sports cashier using the code USA10.

The 10% cashback applies only to qualifying losses from settled single tennis wagers made during the promotional period. The maximum cashback available is £500, and any bonus amount awarded is rounded down to two decimal places.

The offer is restricted to sports betting. Any attempt to misuse the cashback scheme may result in promotional privileges being removed.