2019 Pac-12 Conference Leaders Fumbles Lost - Games Won Only through 01/13/2020
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Arizona | 4 | 3 | 1 | 33.33 |
| 1 | Oregon State | 5 | 4 | 1 | 25.00 |
| 3 | Colorado | 5 | 4 | 2 | 50.00 |
| 3 | Stanford | 4 | 4 | 2 | 50.00 |
| 3 | Washington State | 6 | 4 | 2 | 50.00 |
| 6 | UCLA | 4 | 4 | 3 | 75.00 |
| 7 | California | 8 | 5 | 4 | 80.00 |
| 7 | Washington | 8 | 7 | 4 | 57.14 |
| 7 | Oregon | 12 | 11 | 4 | 36.36 |
| 10 | Arizona State | 8 | 9 | 5 | 55.56 |
| 11 | USC | 8 | 12 | 8 | 66.67 |
| 11 | Utah | 11 | 12 | 8 | 66.67 |