Clayton Thorson
| Passing | Rushing |
| 2015 |  | 13 | 150 | 295 | 50.8 | 1522 | 7 | 9 | 5.2 | 4.3 | 95.9 | 100 | 397 | 4.0 | 5 |
| 2016 | | 13 | 280 | 478 | 58.6 | 3182 | 22 | 9 | 6.7 | 6.7 | 125.9 | 97 | 98 | 1.0 | 5 |
| 2017 | | 13 | 262 | 434 | 60.4 | 2844 | 15 | 12 | 6.6 | 6.0 | 121.3 | 87 | 23 | 0.3 | 8 |
| 2018 | | 14 | 299 | 489 | 61.1 | 3183 | 17 | 15 | 6.5 | 5.8 | 121.2 | 78 | -110 | -1.4 | 9 |
| All | | 53 | 991 | 1696 | 58.4 | 10731 | 61 | 45 | 6.3 | 5.9 | 118.1 | 362 | 408 | 1.1 | 27 |
| DATE | OPPONENT | CMP | ATT | PCT | YDS | TD | INT | AY/A | ATT | YDS | TD | Sep 5 9/5  | Stanford W | 12 | 24 | 50.0 | 105 | 0 | 0 | 4.4 | 8 | 68 | 1 |
Sep 12 | | 11 | 16 | 68.8 | 152 | 1 | 0 | 10.8 | 2 | 7 | 1 |
Sep 19 9/19  | Duke W | 9 | 23 | 39.1 | 70 | 0 | 2 | -0.9 | 11 | 21 | 0 |
Sep 26 9/26  | Ball State W | 18 | 31 | 58.1 | 256 | 3 | 1 | 8.7 | 9 | 45 | 0 |
Oct 3 10/3  | Minnesota W | 14 | 19 | 73.7 | 128 | 0 | 0 | 6.7 | 11 | 24 | 2 |
Oct 10 10/10  | Michigan L | 13 | 27 | 48.1 | 106 | 0 | 1 | 2.3 | 3 | -4 | 0 |
Oct 17 10/17  | Iowa L | 17 | 35 | 48.6 | 125 | 1 | 1 | 2.9 | 11 | 10 | 0 |
Oct 24 10/24  | Nebraska W | 13 | 28 | 46.4 | 177 | 1 | 0 | 7.0 | 9 | 126 | 1 |
Nov 7 11/7  | Penn State W | 5 | 8 | 62.5 | 58 | 0 | 0 | 7.3 | 4 | 15 | 0 |
Nov 14 11/14  | Purdue W | 9 | 19 | 47.4 | 82 | 0 | 1 | 1.9 | 7 | 48 | 0 |
Nov 21 11/21  | Wisconsin W | 9 | 20 | 45.0 | 60 | 0 | 0 | 3.0 | 7 | 7 | 0 |
Nov 28 11/28  | Illinois W | 12 | 25 | 48.0 | 146 | 1 | 1 | 4.8 | 6 | 7 | 0 |
| BOWL |
Jan 1 1/1  | Tennessee L | 8 | 20 | 40.0 | 57 | 0 | 2 | -1.7 | 12 | 23 | 0 |
| DATE | OPPONENT | CMP | ATT | PCT | YDS | TD | INT | AY/A | ATT | YDS | TD | Sep 3 9/3  | Western Michigan L | 15 | 22 | 68.2 | 196 | 0 | 0 | 8.9 | 5 | -8 | 0 |
Sep 10 9/10  | Illinois State L | 17 | 41 | 41.5 | 191 | 1 | 0 | 5.1 | 12 | 30 | 0 |
Sep 17 9/17 | Duke W | 18 | 39 | 46.2 | 320 | 3 | 2 | 7.4 | 7 | -24 | 0 |
Sep 24 9/24 | Nebraska L | 24 | 37 | 64.9 | 249 | 1 | 2 | 4.8 | 10 | 43 | 1 |
Oct 1 10/1 | Iowa W | 18 | 30 | 60.0 | 164 | 3 | 0 | 7.5 | 9 | 11 | 1 |
Oct 15 10/15  | Michigan State W | 27 | 35 | 77.1 | 281 | 3 | 1 | 8.5 | 5 | 12 | 1 |
Oct 22 10/22  | Indiana W | 24 | 43 | 55.8 | 285 | 3 | 0 | 8.0 | 8 | 22 | 0 |
Oct 29 10/29  | Ohio State L | 22 | 42 | 52.4 | 256 | 1 | 1 | 5.5 | 6 | 44 | 1 |
Nov 5 11/5 | Wisconsin L | 28 | 52 | 53.8 | 277 | 1 | 0 | 5.7 | 6 | -3 | 0 |
Nov 12 11/12 | Purdue W | 23 | 36 | 63.9 | 352 | 3 | 2 | 8.9 | 1 | 2 | 1 |
Nov 19 11/19 | Minnesota L | 28 | 45 | 62.2 | 276 | 1 | 0 | 6.6 | 9 | -26 | 0 |
Nov 26 11/26 | Illinois W | 13 | 20 | 65.0 | 121 | 1 | 0 | 7.1 | 7 | -21 | 0 |
| BOWL |
Dec 28 12/28  | Pittsburgh W | 23 | 36 | 63.9 | 214 | 1 | 1 | 5.3 | 12 | 16 | 0 |
| DATE | OPPONENT | CMP | ATT | PCT | YDS | TD | INT | AY/A | ATT | YDS | TD | Sep 2 9/2  | Nevada W | 28 | 38 | 73.7 | 352 | 2 | 1 | 9.1 | 8 | 15 | 2 |
Sep 9 9/9 | Duke L | 11 | 29 | 37.9 | 120 | 0 | 2 | 1.0 | 4 | -40 | 0 |
Sep 16 9/16  | Bowling Green W | 23 | 30 | 76.7 | 370 | 2 | 0 | 13.7 | 7 | 28 | 0 |
Sep 30 9/30 | Wisconsin L | 29 | 45 | 64.4 | 219 | 3 | 2 | 4.2 | 13 | -41 | 0 |
Oct 7 10/7 | Penn State L | 19 | 36 | 52.8 | 142 | 0 | 2 | 1.4 | 6 | -28 | 0 |
Oct 14 10/14  | Maryland W | 27 | 49 | 55.1 | 293 | 1 | 2 | 4.6 | 9 | 43 | 1 |
Oct 21 10/21 | Iowa W | 21 | 36 | 58.3 | 192 | 0 | 0 | 5.3 | 13 | 23 | 1 |
Oct 28 10/28 | Michigan State W | 33 | 48 | 68.8 | 356 | 2 | 0 | 8.3 | 7 | 11 | 1 |
Nov 4 11/4 | Nebraska W | 19 | 35 | 54.3 | 243 | 0 | 2 | 4.4 | 4 | 9 | 2 |
Nov 11 11/11 | Purdue W | 26 | 46 | 56.5 | 296 | 1 | 0 | 6.9 | 5 | 9 | 1 |
Nov 18 11/18 | Minnesota W | 9 | 13 | 69.2 | 86 | 3 | 0 | 11.2 | 4 | 1 | 0 |
Nov 25 11/25 | Illinois W | 13 | 21 | 61.9 | 140 | 1 | 1 | 5.5 | 5 | -1 | 0 |
| BOWL |
Dec 29 12/29  | Kentucky W | 4 | 8 | 50.0 | 35 | 0 | 0 | 4.4 | 2 | -6 | 0 |
| DATE | OPPONENT | CMP | ATT | PCT | YDS | TD | INT | AY/A | ATT | YDS | TD | Aug 30 8/30 | Purdue W | 16 | 26 | 61.5 | 172 | 0 | 0 | 6.6 | 3 | 8 | 0 |
Sep 8 9/8 | Duke L | 22 | 38 | 57.9 | 198 | 0 | 1 | 4.0 | 3 | -19 | 0 |
Sep 15 9/15  | Akron L | 33 | 52 | 63.5 | 383 | 3 | 2 | 6.8 | 4 | -20 | 0 |
Sep 29 9/29 | Michigan L | 16 | 27 | 59.3 | 174 | 0 | 0 | 6.4 | 11 | -36 | 1 |
Oct 6 10/6 | Michigan State W | 31 | 47 | 66.0 | 373 | 3 | 2 | 7.3 | 3 | -8 | 1 |
Oct 13 10/13 | Nebraska W | 41 | 64 | 64.1 | 455 | 3 | 2 | 6.6 | 4 | -7 | 0 |
Oct 20 10/20  | Rutgers W | 17 | 34 | 50.0 | 150 | 0 | 0 | 4.4 | 9 | -27 | 0 |
Oct 27 10/27 | Wisconsin W | 17 | 30 | 56.7 | 167 | 1 | 3 | 1.7 | 8 | 29 | 2 |
Nov 3 11/3  | Notre Dame L | 16 | 29 | 55.2 | 141 | 1 | 0 | 5.6 | 11 | -10 | 2 |
Nov 10 11/10 | Iowa W | 15 | 30 | 50.0 | 122 | 1 | 2 | 1.7 | 5 | 1 | 0 |
Nov 17 11/17 | Minnesota W | 15 | 21 | 71.4 | 230 | 0 | 0 | 11.0 | 3 | -10 | 1 |
Nov 24 11/24 | Illinois W | 12 | 17 | 70.6 | 110 | 2 | 0 | 8.8 | 3 | -2 | 1 |
| CONFERENCE CHAMPIONSHIP |
Dec 1 12/1 | Ohio State L | 27 | 44 | 61.4 | 267 | 1 | 2 | 4.5 | 6 | -3 | 1 |
| BOWL |
Dec 31 12/31  | Utah W | 21 | 30 | 70.0 | 241 | 2 | 1 | 7.9 | 5 | -6 | 0 |
