Oklahoma got a three-run double from Lauren Chamberlain and stayed in control to beat Arkansas, 10-5, in an NCAA Regional game on Saturday in Norman.
The Sooners (49-4) led 6-1 after five innings but their lead narrowed to 6-5 after the Razorbacks (35-19) put together a four-run sixth.
In the bottom of the inning, Javen Henson and Destinee Martinez each singled with two outs. Calie Parsons batted in Henson with a double. One walk later and the bases were loaded for Chamberlain, whose three-RBI double restored the Oklahoma lead to 10-5.
Arkansas faces the winner of Fordham-Marist in an elimination game. The winner faces Oklahoma in the four-team regional final on Sunday.