A disclosed method provides for tournament gaming. The method comprises: allowing a wager on non-modified base game in normal mode and awarding pay table prize for a winning event on said base game; monitoring said base game wager and win data; processing a calculated normalized tournament score using said monitored data spanning multiple base game plays; and providing a tournament game and awarding a tournament prize to at least one tournament winner; wherein the tournament score calculation also uses the theoretical payout percentage for the base game in determining player ranking.