Indiana's top-ranked defense meets USC's passing attack as a 7.5-point spread holds

Indiana hosts USC at Memorial Stadium on Saturday at 3:30 PM ET as a 7.5-point favorite, and that price is exactly where it opened. Both teams are coming off a bye. The central question is whether USC's passing game can find room against the best defense in the country by yards per play, and whether Indiana's offense, which has cooled lately, can do enough to match its season-long reputation.

Indiana's defense is the clearest separator. It allows 12.4 points per game (rank 3), 3.86 yards per play (rank 1) and 75.6 rushing yards per game (rank 4). Its pass defense, at 183.6 yards per game (rank 27), is good but less dominant. That is where USC would look to attack. The Trojans throw for 288.8 yards per game (rank 13) with Jayden Maiava at quarterback, and Trent Mosley has 19 receptions over the last three games. The ground game is weak at 125.1 rushing yards per game (rank 106), even with King Miller handling 43 carries in that stretch.

On the other side, USC's defense allows 24.2 points per game (rank 63) and 5.43 yards per play (rank 79). Indiana averages 6.75 yards per play (rank 10) and 186.2 rushing yards per game (rank 34), with Turbo Richard carrying 42 times over the last three games and Josh Hoover at quarterback. The caution is recent form. Indiana has scored 17.8 points per game over its last four, well below its season rate of 32.4, and USC has dipped to 23.3 per game over the same span. Season numbers and recent output tell different stories for both offenses.

The market agrees with the quality gap but has not moved. Indiana is -107 on the spread and USC -125, with moneylines of Indiana -290 and USC +226, essentially unchanged from the open. The total of 50.5 is also unchanged. Both teams have gone under in four straight games, and their recent scoring runs below what that number implies, though the season-long rates of 32.4 points per game for each side point the other way.

The spread record is the awkward part for anyone backing the favorite. Indiana is 1-8 against the spread this season and has failed to cover in seven straight at home, even while winning 17 straight as a home favorite. USC is 3-6 against the spread and has lost five straight as an away underdog. These streaks describe what has happened rather than what comes next, but they show Indiana winning without clearing big numbers.

Each team has played nine games, enough to trust the broad rankings. The forecast is mild, 45°F with a 12 mph south wind. The evidence favors Indiana on team quality, particularly on defense, and the price already reflects that. Whether the margin reaches 7.5 depends on an Indiana offense that has produced less lately and a USC passing attack that has not been enough on the road.