Oklahoma quarterback Kyler Murray (1) carries past UTEP linebacker Kalaii Griffin (7) during Oklahoma's 56-7 win ov Sept. 2. (AP Photo/Sue Ogrocki)

Oklahoma quarterback Baker Mayfield set the FBS single-season record for passing efficiency last season, and he’s been even better this season.

He’s not even the most efficient passer on his team. That honor goes to backup Kyler Murray.

Mayfield, a Heisman finalist last season, leads the nation in passer efficiency for players who have enough attempts and have played in more than one game. His NCAA record last season was 196.4, and he’s at 226.9 this season.

Murray's rating is a mind-blowing 291.20. Though he doesn’t have enough attempts to qualify for the national leaders, he has made the most of his opportunities. He has completed 13 of 14 passes for 252 yards and two touchdowns with no interceptions in three games for the third-ranked Sooners. 

In the opener against UTEP, he completed 10 of 11 passes for 149 yards and a touchdown.

“I’ve got a lot of confidence if something happened to Baker, he’d be ready to go,” Riley said after the UTEP game. “He’s played in big-game environments before and started in big games. He’s played against good competition. I have no concern about him being ready.”

Murray has done more with his legs in the past. In his one season at Texas A&M, the speedster passed for 686 yards and ran for 335. 

As a Sooner, he keeps making highlights with his arm. His best play against UTEP was a 43-yard touchdown pass to Lee Morris.

Against Tulane, he completed all three of his passes for 103 yards, including an 87-yard touchdown pass to Marquise Brown.

“We told you guys he could throw,” Riley said after the Tulane game. “There you go. He can throw. He can. I’m glad to be able to get him a few reps and a few throws there. He handled it well.”

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