2019 Pac-12 Conference Leaders Fumbles Lost - Games vs. Conference Teams Only through 01/13/2020
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Stanford | 9 | 2 | 1 | 50.00 |
| 2 | Oregon State | 9 | 5 | 2 | 40.00 |
| 3 | Colorado | 9 | 6 | 2 | 33.33 |
| 4 | California | 9 | 7 | 1 | 14.29 |
| 5 | Arizona | 9 | 8 | 5 | 62.50 |
| 6 | Oregon | 10 | 9 | 3 | 33.33 |
| 7 | Washington | 9 | 10 | 5 | 50.00 |
| 7 | UCLA | 9 | 10 | 6 | 60.00 |
| 9 | Utah | 10 | 11 | 8 | 72.73 |
| 9 | Washington State | 9 | 11 | 8 | 72.73 |
| 11 | Arizona State | 9 | 13 | 6 | 46.15 |
| 11 | USC | 9 | 13 | 7 | 53.85 |