2018 Pac-12 Conference Leaders Fumbles Lost - Games vs. FBS Teams With Winning Record Only through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Washington State | 6 | 5 | 3 | 60.00 |
| 2 | California | 6 | 8 | 4 | 50.00 |
| 2 | Washington | 10 | 8 | 4 | 50.00 |
| 4 | Stanford | 8 | 9 | 4 | 44.44 |
| 5 | Arizona State | 7 | 11 | 3 | 27.27 |
| 5 | UCLA | 9 | 11 | 6 | 54.55 |
| 5 | Oregon | 7 | 11 | 7 | 63.64 |
| 8 | Colorado | 5 | 12 | 5 | 41.67 |
| 9 | Utah | 9 | 13 | 9 | 69.23 |
| 10 | Arizona | 7 | 14 | 5 | 35.71 |
| 11 | USC | 7 | 16 | 5 | 31.25 |
| 12 | Oregon State | 8 | 17 | 8 | 47.06 |