How it’s calculated
The rollover says how many times you must wager the bonus amount (and, if the terms say so, the deposit) before you can withdraw it: (bonus + deposit) × times.
(€100 + €0) × 10 = €1,000
€1,000 × 12.7% ≈ €127
€1,000 × 12.7% ≈ €127
Every stake costs the bookmaker’s margin on average. So the average cost is amount to wager × margin. It’s an average, not the result you will get.
Frequently asked questions
What does a 10× rollover mean?
That you must wager 10 times the bonus amount in total (or bonus and deposit, if the terms say so) before you can withdraw it.
Why does a rollover cost money?
Because every stake carries the bookmaker’s margin. The more you wager, the higher the average cost.
Where does the default margin come from?
From the NBA’s quarterly figures: gross gaming revenue ÷ amounts wagered for the whole Cyprus market in the latest quarter.