The Purdue Boilermakers were 4-7 in 1991.
| TEAM | CONF | OVERALL | |
|---|---|---|---|
4-4 | 6-6 | ||
2-6 | 5-6 | ||
3-5 | 4-7 | ||
3-5 | 3-8 | ||
2-6 | 3-8 |
| GP | PTS | YDS | PLY | AVG | RUSH YDS | RUSH ATT | RUSH AVG | PASS YDS | PASS ATT | PASS AVG | SCK | SCKY | 1DWN | RUSH 1DWN | PASS 1DWN | PEN 1DWN | PEN | PEN YDS | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Team | 11 | 219 | 3,428 | 738 | 4.6 | 1,955 | 511 | 3.8 | 1,473 | 227 | 6.5 | ||||||||
Team Rank | 68th | 79th | 80th | 74th | 47th | 39th | 57th | 91st | 88th | 69th | |||||||||
Opponent | 11 | 272 | 3,738 | 5.1 | 1,639 | 437 | 3.8 | 2,099 | 296 | 7.1 | |||||||||
Opponent Rank | 68th | 48th | 59th | 36th | 22nd | 49th | 57th | 49th | 63rd | ||||||||||
Net | -53 | -310 | +738 | -0.5 | +316 | +74 | +0.1 | -626 | -69 | -0.6 | |||||||||
Net Rank | 74th | 65th | 80th | 74th | 42nd | 29th | 54th | 90th | 82nd | 69th |
| Big 10 | W | L | PCT | |
|---|---|---|---|---|
| 1 | 11 | 0 | 1.000 | |
| 2 | 11 | 0 | 1.000 |
| Independent | W | L | PCT | |
|---|---|---|---|---|
| 1 | 9 | 2 | .818 | |
| 2 | 9 | 3 | .750 |
| Pac-12 | W | L | PCT | |
|---|---|---|---|---|
| 1 | 2 | 9 | .182 | |
| 2 | 5 | 6 | .455 |
| Mountain West | W | L | PCT | |
|---|---|---|---|---|
| 1 | 9 | 2 | .818 | |
| 2 | 7 | 4 | .636 |
| Big 12 | W | L | PCT | |
|---|---|---|---|---|
| 1 | 10 | 1 | .909 | |
| 2 | 10 | 1 | .909 |
| American Athletic | W | L | PCT | |
|---|---|---|---|---|
| 1 | 9 | 2 | .818 | |
| 2 | 10 | 1 | .909 |
| Mid-American | W | L | PCT | |
|---|---|---|---|---|
| 1 | 8 | 4 | .667 | |
| 2 | 7 | 4 | .636 |
| Conference USA | W | L | PCT | |
|---|---|---|---|---|
| 1 | 7 | 4 | .636 | |
| 2 | 8 | 3 | .727 |
| Sun Belt | W | L | PCT | |
|---|---|---|---|---|
| 1 | 10 | 1 | .909 | |
| 2 | 8 | 3 | .727 |