DISPLAYING
| TEAM | TIME | MEET | MEET DATE | |
|---|---|---|---|---|
| 1 | Oregon | 38.72 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 2 | USC | 39.34 | USC vs UCLA | Apr 27, 2019 |
| 3 | Arizona | 39.45 | NCAA Division I West Region Preliminary Rounds | May 23, 2019 |
| 4 | UCLA | 39.79 | NCAA Division I West Region Preliminary Rounds | May 23, 2019 |
| 5 | Washington St. | 40.14 | NCAA Division I West Region Preliminary Rounds | May 23, 2019 |
| 6 | Washington | 40.53 | Stanford Invitational | Mar 29, 2019 |
| 7 | California | 40.56 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 8 | Colorado | 41.06@ | Colorado Invitational 2019 | Apr 5, 2019 |
| 9 | Arizona State | 41.21 | 2019 ASU Invitational | Mar 22, 2019 |
| 10 | Stanford | 41.42 | Big Meet | Apr 6, 2019 |
| TEAM | TIME | MEET | MEET DATE | |
|---|---|---|---|---|
| 1 | USC | 42.21 | NCAA Division I Outdoor Track & Field Championships | Jun 5, 2019 |
| 2 | Oregon | 42.99 | NCAA Division I Outdoor Track & Field Championships | Jun 5, 2019 |
| 3 | California | 44.49 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 4 | Arizona | 44.80 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 5 | UCLA | 44.89 | Mt. SAC Relays | Apr 18, 2019 |
| 6 | Arizona State | 44.91 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 7 | Colorado | 45.40 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 8 | Washington St. | 45.78 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 9 | Washington | 45.87 | UW vs WSU Dual | Apr 6, 2019 |
| 10 | Utah | 45.95 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 11 | Stanford | 47.58 | Big Meet | Apr 6, 2019 |
| TEAM | TIME | MEET | MEET DATE | |
|---|---|---|---|---|
| 1 | USC | 3:03.54 | Mt. SAC Relays | Apr 18, 2019 |
| 2 | Arizona | 3:05.98 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 3 | Oregon | 3:06.31 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 4 | UCLA | 3:06.49 | NCAA Division I West Region Preliminary Rounds | May 23, 2019 |
| 5 | Colorado | 3:07.46 | 2019 92nd Clyde Littlefield Texas Relays | Mar 27, 2019 |
| 6 | Washington | 3:09.22 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 7 | California | 3:09.23 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 8 | Stanford | 3:10.23 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 9 | Washington St. | 3:12.40 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 10 | Arizona State | 3:15.36 | 2019 ASU Invitational | Mar 22, 2019 |
| TEAM | TIME | MEET | MEET DATE | |
|---|---|---|---|---|
| 1 | USC | 3:28.31 | NCAA Division I Outdoor Track & Field Championships | Jun 5, 2019 |
| 2 | Oregon | 3:30.36 | NCAA Division I West Region Preliminary Rounds | May 23, 2019 |
| 3 | Arizona | 3:30.67 | NCAA Division I West Region Preliminary Rounds | May 23, 2019 |
| 4 | Colorado | 3:34.82 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 5 | Stanford | 3:37.19 | NCAA Division I West Region Preliminary Rounds | May 23, 2019 |
| 6 | Washington | 3:40.16 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 7 | UCLA | 3:40.29 | USC vs UCLA | Apr 27, 2019 |
| 8 | Arizona State | 3:41.97 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 9 | Utah | 3:42.67 | 2019 Desert Heat Classic | Apr 27, 2019 |
| 10 | California | 3:47.87 | Brutus Hamilton Invitational | Apr 27, 2019 |
| 11 | Oregon State | 3:48.24 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |
| 12 | Washington St. | 3:50.04 | 2019 Pac-12 Track & Field Championships | May 4, 2019 |