Bonus Rollover
value = bonus − turnover × margin
A bonus is only worth taking if it is bigger than what you can expect to lose while meeting the wagering requirement.
Questions about the bonus rollover
What is a rollover requirement?
The amount you must bet before you can withdraw a bonus. A 6× rollover on a 100 deposit plus 100 bonus means placing 1,200 in bets.
How is a bonus's value worked out?
Expected cost of the rollover = total amount you must bet × bookmaker margin. The bonus is worth taking when it is bigger than that cost. Check the terms too: minimum odds, time limits and excluded markets all matter.
These tools do the maths only. They can't predict results, and no betting system guarantees a profit.
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