Ohio State's elite defense and efficiency visit USC's porous secondary and slower pace.

No. 5 Ohio State (4-1, SP+ +28.8) travels to No. 19 USC (5-1, SP+ +17.8) Saturday at noon ET in Los Angeles. The Buckeyes' top-two defense meets a Trojans unit allowing 1.07x league red-zone efficiency.

Ohio State ranks second in SP+ and first in FPI, built on elite efficiency: 0.50 PPA per play offensively, -0.13 allowed defensively. The Buckeyes score 42.2 per game and allow 12.6, with Julian Sayin managing a 94% returning passing production share and Jeremiah Smith (823 receiving yards) leading a balanced attack. USC sits 13th in SP+, 19th in FPI, scoring 37.3 and allowing 25.5. Jayden Maiava has thrown for 1,744 yards, but the Trojans' defense ranks 49th in SP+ and allows 1.07x league efficiency in the red zone—a critical vulnerability against Ohio State's 1.18x red-zone finishing index. Both teams run at similar rates (Ohio State 53%, USC 51%) and convert third downs at comparable rates (47% vs. 52%), but the pace diverges sharply: Ohio State snaps every 26.5 seconds, USC every 30.0. That tempo difference compounds USC's defensive exposure. Ohio State's defense stops 63% of third downs and allows only 0.68x league red-zone efficiency; USC's defense also stops 63% on third down but bleeds points in the red zone. The Trojans' turnover margin sits at -0.17 per game versus Ohio State's +0.80, another structural disadvantage.

Written Oct 8, before USC Trojans’s loss 7-24 vs WIS (Oct 24), Ohio State Buckeyes’s win 19-15 vs IND (Oct 17), USC Trojans’s win 31-23 vs PSU (Oct 10) and Ohio State Buckeyes’s win 45-16 vs MD (Oct 10). The record and recent form below include them; the read refreshes the next time the writer runs.