2019 Pac-12 Conference Leaders Fumbles Lost - Games vs. Unranked Teams Only (AP Poll) through 01/13/2020
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Oregon State | 10 | 5 | 1 | 20.00 |
| 1 | Colorado | 9 | 5 | 2 | 40.00 |
| 1 | Stanford | 9 | 5 | 3 | 60.00 |
| 4 | California | 11 | 8 | 4 | 50.00 |
| 5 | Oregon | 11 | 9 | 4 | 44.44 |
| 5 | Arizona | 10 | 9 | 6 | 66.67 |
| 7 | Washington | 10 | 10 | 5 | 50.00 |
| 8 | UCLA | 9 | 11 | 5 | 45.45 |
| 8 | Washington State | 10 | 11 | 8 | 72.73 |
| 10 | Utah | 12 | 13 | 9 | 69.23 |
| 11 | USC | 9 | 14 | 7 | 50.00 |
| 12 | Arizona State | 11 | 15 | 9 | 60.00 |