Google has failed miserably in finding me an answer. I thought Oklahoma had Texas run ruled after 4½ innings, but play continued on. It's now 14-1 in the top of the 6th. It's seems wrong to change the rule in the championship series. It appears there is no run rule at all. I assume they still play just 7 innings. Texas probably hopes so. All these teams are doing now is risking injury and getting the pitch count up on the pitchers.