Maryland’s newest casino came within a whisker of topping its all-time highest monthly revenue in May, while the state’s former top gaming venue plots its revenge.

Figures released Monday by the Maryland Lottery and Gaming Control Agency show the state’s six casinos generated gaming revenue of $136.5m in May, up slightly from April’s $135.7m and second only behind March’s record $141.2m.

May’s sum is 30.8% higher than the same month last year, although May 2016 didn’t feature contributions from MGM Resorts’ National Harbor property, which opened last December. Comparing only the five casinos that were open in both months, May’s revenue was down 17.7% year-on-year.

National Harbor reported revenue of $50.5m, the second time the property has topped the $50m mark and second only behind March’s record $51.2m. Runner-up Maryland Live! wasn’t too far behind at $45.9m, although this was down 22.3% year-on-year.