Illinois Fighting Illini vs. Purdue Boilermakers Prediction and Picks – Saturday, October 4, 2025
Use Code SSWC The Illinois Fighting Illini and Purdue Boilermakers will meet for a Week 6 matchup this Saturday in West Lafayette, and we'll preview the lines and odds in our Illinois vs. Purdue prediction. Illinois spent Week 5 scraping their way to a 34-32 win over USC, while Purdue spent Week 5 on a bye after losses to USC and Notre Dame. Kickoff is set for 12:00 PM ET on Saturday, October 4.
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Can Illinois finally notch a decisive win against Purdue?
The No. 22 Illinois Fighting Illini are up a spot in the AP Top 25 entering Week 6, having spent Week 5 knocking off No. 21 USC in a 34-32 home win. The win came down to a 41-yard field goal Illinois converted in the final seconds of the game, but it was still a great bounce-back performance from the Illini after they spent Week 4 losing 63-10 at No. 19 (now No. 8) Indiana.
Nearly everything about the win against USC was close–most notably the game-sealing touchdown drive Illinois engineered in the fourth quarter that didn't happen. With the team up 31-25, sophomore back Ca'Lil Valentine ran the ball in from the USC 12 but lost a fumble in the endzone, taking points off the board and giving USC possession at the 20-yard line. That drive would end in a touchdown to put USC up 32-31, necessitating a two-minute drive from Illinois that ended in kicker David Olano converting a 41-yard field goal as time expired. Illinois only outgained USC by 12 yards in a game where the teams combined for 992 yards total; they gained 25 first downs while allowing 29 first downs on defense, and they gave away two turnovers while taking back two in return.
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Luke Altmyer leads the way at quarterback for the Illini. He was named the Big 10 Player of the Week for his efforts, highlighted by 328 passing yards and two touchdowns, while rushing for one and catching a scoring pass. He's completing 71.4% of his passes for 11 touchdowns and no interceptions. They allow 242.4 passing yards per game (97th) and rush for just 133.4 yards per game. But they do average 35.8 points per game.
With Indiana and USC in the rearview mirror and Ohio State on the horizon in Week 7, Purdue should be an easier challenge for Illinois to manage in Big 10 play. We'll see whether that's the case–Illinois needed overtime to beat Purdue 50-49 last season, and Purdue has won seven of their nine matchups with Illinois since 2016.
Purdue needs to improve running game
The Purdue Boilermakers enter Week 6 at 2-2 and 0-1 in Big 10 play, having lost to USC (33-17) and Notre Dame (56-30) in their last two outings. They didn't play in Week 5, giving them extra time to recalibrate and prepare for a ranked opponent in Illinois, who spent Week 5 knocking off the same Trojans team that Purdue lost to in Week 3.
Purdue stayed within striking distance of Notre Dame for most of the first half, answering a 100-yard kickoff return from the Irish with a six-play touchdown drive to go into halftime down only 35-23. The game got away from them in the third quarter as Notre Dame scored 21 unanswered points, including a rushing touchdown each from backs Jeremiyah Love and Jadarain Price. Love and Price finished the game with a combined 231 yards and five touchdowns on 28 carries, running circles around a Boilermakers offense that was led on the ground with 26 yards from reserve quarterback Malachi Singleton.
Senior running back Devin Mockobee, weeks after carrying the ball 32 times against Southern Illinois, gained only 16 yards on 12 carries against the Irish. The Boilermakers average just 3.1 yards per carry overall and 2.3 yards per carry in their losses to USC and Notre Dame.
QB Ryan Browne leads the offense with 1,036 yards passing, six TDs and five picks (63.1%). They average 279.5 yards per game passing (28th), but just 108.8 rushing yards (118th) on defense, they are allowing 213 yards per game in the air (70th) and 157.3 rushing yards (84th).
The Boilermakers have dominated the series against the Illini in recent memory, winning seven of their last nine matchups and taking the most recent Illinois win to a 50-49 overtime decision. They'll surprise many if they look anywhere near as dominant in Saturday's game.
Top Team vs Bottom Team Pick
Spread Pick for Top Team vs Bottom Team
- Illinois -9.5 (-110) (4 Units)
Illinois has played two road games this season: an embarrassing 63-10 loss at Indiana and a dominant 45-19 win at Duke. For reference, Duke is 3-2 this season with losses to Georgia Tech and Virginia–two teams currently in the AP Top 25—whom Duke lost to by a combined 13 points. Purdue's lack of running game is going to be the difference. Browne is a mistake-prone quarterback and the Illini will take advantage. The Illini are 4-1 with a win against a ranked opponent and three dominant wins otherwise; they should be able to cover double-digits on a short road trip to West Lafayette.
Over/Under Pick for Top Team vs Bottom Team
- Over 56.0 (-110) (4 Units)
The Illini are coming off a 34-32 win over USC, while the Boilermakers are coming off a 30-56 loss at Notre Dame. Both games hit the Team Total Over, which has now hit in each of the Illini's games against a Power 4 opponent. Both teams in this game have scored 30+ points against all but one of their opponents; I'd expect them to eclipse 56 points between them easily enough.
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