PFF grades are live: College Football Playoff quarterfinals

Trinidad Chambliss leads Ole Miss to the semifinals: The quarterback put the Rebels on his back when it mattered most, accumulating a 91.8 PFF passing grade with five big-time throws.

Devan Boykin highlights a stellar day for Indiana's defense: The safety produced an 88.0 PFF coverage grade with six stops during the Hoosiers' huge win.

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Highest-graded players: Offense (non-quarterbacks)

Name	Team	Pos.	Snaps	PFF Grade
Kaleon Black	Indiana	HB	28	85.3
Jeremiah Smith	Ohio State	WR	60	84.1
Harrison Wallace III	Ole Miss	WR	67	81.9
Charlie Becker	Indiana	WR	31	80.3
Samson Okunlola	Miami (FL)	G	33	80.0
Michael Carroll	Alabama	T	50	78.3
Francis Mauigoa	Miami (FL)	T	63	75.5
Will Kacmarek	Ohio State	TE	33	75.5
De'Zhaun Stribling	Ole Miss	WR	50	75.3
Terrance Carter Jr.	Texas Tech	TE	58	74.6

Highest-graded defenders

Name	Team	Pos.	Snaps	PFF Grade
Payton Pierce	Ohio State	LB	10	97.5
Devan Boykin	Indiana	S	43	86.2
Ben Roberts	Texas Tech	LB	82	85.9
Rueben Bain Jr.	Miami (FL)	EDGE	55	85.0
David Bailey	Teas Tech	EDGE	62	84.0
Elijah Griffin	Georgia	Dl	43	83.8
Caleb Downs	Ohio State	S	63	83.3
Jerry Mixon	Oregon	LB	37	82.8
Isaiah Jones	Indiana	LB	41	82.5
Bryce Boettcher	Oregon	LB	61	80.4

Highest-graded quarterbacks

Name	Team	Snaps	PFF Grade
Trinidad Chambliss	Ole Miss	75	91.6
Fernando Mendoza	Indiana	58	90.3
Julian Sayin	Ohio State	60	75.3
Austin Mack	Alabama	22	70.7
Carson Beck	Miami (FL)	63	70.5
Alberto Mendoza	Indiana	9	69.4
Gunner Stockton	Georgia	74	62.7
Dante Moore	Oregon	82	61.1
Ty Simpson	Alabama	28	49.2
Behren Morton	Texas Tech	62	29.9

Offensive Player of the Week: QB Trinidad Chambliss, Ole Miss

While a myriad of star quarterbacks were on display during the second round of the College Football Playoff, none shined brighter than Chambliss. The Ole Miss starter put on a show with a 91.6 overall PFF grade and a 91.8 passing mark, totaling five big-time throws with only one turnover-worthy play. The former Ferris State quarterback was especially elite when Georgia blitzed him, going 12-for-22 with 128 yards, three big-time throws, no turnover-worthy plays and zero sacks.

Defensive Player of the Week: S Devan Boykin, Indiana

Indiana's defense swarmed Alabama‘s inconsistent offense in the Rose Bowl, and Boykin was a focal point. The safety produced an 88.0 PFF coverage grade with six stops in the pass game. Boykin also didn't miss a single tackle attempt in Pasadena.

Offensive Line of the Week: Alabama Crimson Tide

Although Alabama was dismantled in the quarterfinals, its offensive line put forth a respectable effort. The unit produced an 87.3 PFF pass-blocking grade, permitting just five pressures and one sacks against a good Indiana front. Further, the Tide's offensive line easily led all eight teams with a 77.8% impact run-block rate.

Quarterback of the Week: Trinidad Chambliss, Ole Miss

See above.

Run Defender of the Week: LB Ben Roberts, Texas Tech

Texas Tech's season may have come to an unfortunate end, but it wasn't because of its elite defense. Roberts continued a great postseason period with a nation-high 89.3 PFF run-defense grade against Oregon, recording six stops with one tackle for loss/no gain. He also didn't miss a single tackle against the Ducks' good ground game.

Pass Rusher of the Week: EDGE Rueben Bain Jr., Miami (FL)

Bain continued his season-long tear by wreaking havoc against Ohio State in the Cotton Bowl. The projected first-round pick led all players in the quarterfinals with an 86.7 PFF pass-rushing grade and an unreal 32.4% pass-rush win rate. Altogether, Bain accumulated eight pressures against the Buckeyes.

Coverage Defender of the Week: S Devan Boykin, Indiana

See above.