Auburn rattled off 17 straight points to start the game, took a 31-7 lead to halftime and cruised the rest of the way. Nick Marshall accounted for four touchdowns and 326 yards of offense, 119 of which came on the ground.
Auburn amassed 562 yards, two weeks after LSU surrendered 576 to Mississippi State.
Meanwhile, the Tigers finished with just 280 yards of offense (129 of which came on three long pass plays) and failed to convert a single third down on 13 attempts. Brandon Harris went just 3-for-14 for 58 yards in his first collegiate start, and LSU replaced him with Anthony Jennings in the third quarter.
The loss gives LSU its first 0-2 start to SEC play since 2001, a year the Tigers actually won the conference title. It was LSU’s largest margin of defeat since 1999, when LSU lost at home to Auburn by the exact same score.
The onslaught started early, as Auburn scored on each of its first four possessions.
Auburn settled for just a field goal on its first drive despite plays of 18 and 19 yards on the possession. The Plainsmen got a taste of pay dirt their next time out though, and that’s when the floodgates really opened.
Auburn picked up 21 yards through its first four plays of that drive. Then, Marshall heaved it up to Coates, who beat Rashard Robinson for the 56-yard touchdown. Auburn hit the big play again on the next drive. Artis-Payne took a pitch, tossed it to backup quarterback Jeremy Johnson, who was lined out wide, and he threw it deep to Coates for 38 yards.
Marshall scored three plays later from seven yards out to give Auburn an early 17-0 lead.
Meanwhile, the LSU offense was stagnant in Harris’ first career start. The Bayou Bengals went three-and-out on each of their first three possessions, totaling a combined 16 yards.
Their fourth drive was a bit more successful. Harris completed his first pass of the game on a 52-yard bomb to Malachi Dupre. Kenny Hilliard rumbled in from one yard on the next play, but that was the only LSU score of the game.
Auburn would reach the end zone twice more before halftime.
Marshall got his second passing touchdown early in the second quarter on a nine-yard completion to tight end C.J. Uzomah. A miscommunication by Lamar Louis and Kendell Beckwith left Uzomah unguarded in the end zone.
After LSU forced a pair of Auburn punts, the home team returned to the end zone. Marshall made several LSU tacklers miss on a 29-yard touchdown run, capping off a drive that featured plays of 29, 15 and 11 yards before the score.
That was Marshall’s fourth score of the half. Auburn finished with 379 yards, and the 274 in the first was the most in one quarter under Gus Malzahn.
It was only the second time under Les Miles that LSU has surrendered 31 points in a half.
Neither offense did much of anything in the third quarter. Auburn netted only a field goal, and the LSU defense forced the first turnover of the game on a Marshall fumble recovered by Beckwith.
But LSU continued to struggle offensively. The first two drives went three-and-out, and LSU inserted Jennings into the game following the fumble recovery. His first possession resulted in a turnover on downs though.
LSU did start to show some life as the fourth quarter came to an end. Jennings completed a 40-yard pass to John Diarse, and a pass interference drawn by Dupre brought LSU to the Auburn 28-yard line.
But the next four plays totaled just four yards, and the drive resulted in another turnover on downs.
The Auburn offense returned to form in the ensuing possession. The home team went 76 yards on nine plays, all on the ground. Corey Grant capped it off with a 12-yard touchdown run.
LSU managed one more offensive threat before the end of the game, thanks to a 40-yard completion from Jennings to Dural. But the drive stalled from there with another turnover on downs 11 yards from the end zone.
Auburn ran out the clock on the next drive and sealed the blowout victory.