In the world of advantage play, Expected Value (EV) is the only metric that matters. Here is the exact formula we use to audit every bonus on SpinBonus.
EV = Bonus - (Wagering × (1 - RTP))
If the result is positive (+EV), the bonus is a "math-win" for the player. If it's negative (-EV), only play it for fun, not for profit.
Reviewed By
Sofia Draganov
Chief RNG Auditor & Senior Data Analyst
Sofia is the Technical Lead at SpinBonus, specializing in RNG certification and mathematical verification. With over a decade in iGaming analytics, she has audited 500+ wagering systems to ensure player safety through quantitative proof and algorithmic transparency.
