In its first 3 1/2 weeks, Columbus' new casino attracted $165 million in wagers.
Regulators say the opening of Hollywood Columbus, Ohio's third casino, sharply boosted wagering in October, despite a drop in betting at the other two gambling houses.
The Ohio Casino Control Commission reported Wednesday that wagers at Hollywood Columbus, the Horseshoe Cleveland, and Hollywood Toledo casinos totaled nearly $479 million last month. The Columbus casino opened Oct. 8.
The highest monthly wagering total for the Cleveland and Toledo casinos, which opened in May, was $417 million in June as bettors tried out the new experience.
Last month betting dropped 9.2 percent in Toledo and 2.2 percent in Cleveland.
Ohio's fourth casino opens next year in Cincinnati.