The biggest game of the season (so far) is upon us.

No. 2 Georgia visits No. 4 Alabama in the first top-five matchup of the season on Saturday night. It's the last of four ranked matchups during a loaded Week 5 slate.

The biggest result of the day, however, may have happened early on Saturday. Kentucky went into Oxford against No. 6 Ole Miss and stunned the Rebels, 20-17 , in a back-and-forth affair that ended with a shanked field goal that would've tied it.

Later in the day, No. 21 Oklahoma got a late pick 6 to spark a comeback win over Auburn and earn its first SEC win. No. 16 Notre Dame also notched a key victory of its own in holding off No. 15 Louisville while Colorado blew out UCF on the road .

Here are the biggest games left. Follow along as we break down all the action below.

Time: 7:30 p.m. | TV: NBC | Line: Penn State -18 | Total: 47.5

The Illini knocked off previously undefeated Nebraska in overtime in Week 4 and it’s just the third time since 1951 that Illinois has won its first four games. A big reason for that is the improved play of former Ole Miss QB Luke Altmyer. Can he keep that up against Penn State on the road? Opposing QBs are averaging just 144 yards per game against the Nittany Lions.

Time: 7:30 p.m. | TV: ABC | Line: Georgia -1.5 | Total: 48.5

This matchup of perennial playoff teams features two Heisman contenders at quarterback . No QB is responsible for more TDs per game than Alabama’s Jalen Milroe, and Carson Beck spent much of the offseason as the favorite for the award. Beck’s 2024 season hasn’t lived up to the Heisman hype yet, but it won’t be a surprise in the slightest if Beck has a big game.

Time: 10 p.m. | TV: FS1 | Line: Boise State -7.5 | Total: 64.5

Washington State is on the precipice of the AP Top 25 after a 4-0 start that includes wins over Texas Tech and Washington and QB John Mateer is slinging it. But the Cougars defense is allowing almost five yards a carry — that’s an appetizing statistic for Boise State RB Ashton Jeanty, who leads the country with an average of 10.5 yards a carry. There’s a reason he’s the non-QB with the best Heisman odds (+2000) at BetMGM.