Event Note:
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 1 | Milwaukie | A | Atkerson, Seth | Meade, Devin | Sanders, Jacob | Meyer, River | 3:40.44 | |
| 2 | St Helens | A | Bumgardner, Bryce | Compton, Gabe | Estep, Sam | Funk, Nate | 3:36.90 | |
| 3 | Sandy | A | Thomas, Dallin | McGaughey, Glynne | DeWolfe, Austin | DeBatty, James | 3:31.41 | |
| 4 | Wilsonville | A | Blood, Tharen | Bullock, Sam | Collins, Dane | King, Riley | 3:28.00 | |
| 5 | Hillsboro | A | Mitchell, Daekwon | Kalamau III, Eddie | DiRienzo, Isaiah | Chapman, Orion | 3:28.76 | |
| 6 | Liberty | A | Boltz, Ethan | Maloney, Aidan | Reohr, Jacob | Robinson, David | 3:31.94 | |
| 7 | La Salle Prep | A | Li, Kyrne | Cardwell, Parker | Hamel, Sean | McCoy, Nicholas | 3:37.00 | |
| 8 | Putnam | A | Marchant, Jared | Voltaire, Michael | Stephens, Kane | Ciganek, Michal | 4:02.20 |