Edmond North scored twice in the third on singles by Kourtney Tanner and Sheridan Bond and an RBI triple by Madison Nordyke.
Owasso appeared to have a rally cooking in the fourth with runners on second and third after left fielder Kenzi Stevens hit an apparent double down the right field line. But the call was reversed and the ball was ruled foul after a long discussion among the umpires.
Dixon then struck out Stevens and Owasso never threatened again. Dixon retired 12 of the final 13 Rams' batters in the game.
She is heading to Marshall University to pitch next season but before then wants a state championship ring to match her sisters' jewelry.
Miranda Dixon pitched for Edmond North's 2004 state title team, and Leslie Dixon was the catcher. Both played for the University of Arkansas.
“She (Miranda) taught me how to throw,” Dixon said. “She taught me everything I know.”
In addition to her sisters, Dixon also has triplet brothers who play football and wrestle for Edmond North.
“The house is always on the go,” she said.