2018 Pac-12 Conference Leaders Fumbles Lost - Games vs. FBS (I-A) Teams Only through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Stanford | 12 | 11 | 4 | 36.36 |
| 1 | Washington State | 12 | 11 | 5 | 45.45 |
| 1 | Washington | 13 | 11 | 5 | 45.45 |
| 4 | UCLA | 12 | 15 | 7 | 46.67 |
| 5 | Arizona State | 13 | 17 | 4 | 23.53 |
| 6 | California | 12 | 18 | 10 | 55.56 |
| 7 | Colorado | 11 | 19 | 7 | 36.84 |
| 7 | Arizona | 11 | 19 | 8 | 42.11 |
| 7 | Oregon | 12 | 19 | 10 | 52.63 |
| 7 | Utah | 13 | 19 | 11 | 57.89 |
| 11 | Oregon State | 11 | 21 | 8 | 38.10 |
| 12 | USC | 12 | 24 | 10 | 41.67 |