The Illinois Fighting Illini were 5-7 in 2021.
| TEAM | CONF | OVERALL | |
|---|---|---|---|
8 | 4-5 | 7-6 | |
9 | 3-6 | 7-6 | |
10 | 4-5 | 5-7 | |
11 | 2-7 | 5-8 | |
12 | 1-8 | 3-9 |
| 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 | 12 | 242 | 3,957 | 791 | 5.0 | 2,083 | 468 | 4.5 | 1,874 | 323 | 5.8 | 23 | 177 | 211 | 102 | 88 | 21 | 61 | 633 |
Team Rank | 117th | 114th | 106th | 111th | 65th | 64th | 57th | 121st | 108th | 124th | 37th | 63rd | 114th | 80th | 117th | 67th | 19th | 55th | |
Opponent | 12 | 263 | 4,386 | 871 | 5.2 | 1,804 | 478 | 3.8 | 2,582 | 363 | 7.1 | 30 | 193 | 253 | 117 | 119 | 17 | 59 | 588 |
Opponent Rank | 16th | 25th | 52nd | 31st | 50th | 69th | 41st | 26th | 35th | 49th | 57th | 75th | 51st | 87th | 42nd | 32nd | 120th | 95th | |
Net | -21 | -429 | -80 | -0.2 | +279 | -10 | +0.7 | -708 | -40 | -1.3 | -7 | -16 | -42 | -15 | -31 | +4 | +2 | +45 | |
Net Rank | 88th | 97th | 103rd | 89th | 59th | 74th | 49th | 110th | 90th | 104th | 39th | 74th | 109th | 93rd | 110th | 38th | 70th | 81st |
| Atlantic Coast | W | L | PCT | |
|---|---|---|---|---|
| 1 | 9 | 1 | .900 | |
| 2 | 9 | 2 | .818 |
| Big 10 | W | L | PCT | |
|---|---|---|---|---|
| 1 | 10 | 0 | 1.000 | |
| 2 | 11 | 0 | 1.000 |
| Independent | W | L | PCT | |
|---|---|---|---|---|
| 1 | 8 | 2 | .800 | |
| 2 | 8 | 3 | .727 |
| Pac-12 | W | L | PCT | |
|---|---|---|---|---|
| 1 | 2 | 9 | .182 | |
| 2 | 5 | 5 | .500 |
| Mountain West | W | L | PCT | |
|---|---|---|---|---|
| 1 | 8 | 2 | .800 | |
| 2 | 7 | 3 | .700 |
| Big 12 | W | L | PCT | |
|---|---|---|---|---|
| 1 | 10 | 1 | .909 | |
| 2 | 9 | 1 | .900 |
| American Athletic | W | L | PCT | |
|---|---|---|---|---|
| 1 | 8 | 2 | .800 | |
| 2 | 9 | 1 | .900 |
| Mid-American | W | L | PCT | |
|---|---|---|---|---|
| 1 | 6 | 4 | .600 | |
| 2 | 6 | 4 | .600 |
| Conference USA | W | L | PCT | |
|---|---|---|---|---|
| 1 | 7 | 3 | .700 | |
| 2 | 8 | 2 | .800 |
| Sun Belt | W | L | PCT | |
|---|---|---|---|---|
| 1 | 9 | 1 | .900 | |
| 2 | 7 | 3 | .700 |