The 2025 Seattle Supercross, which was the 11th round of the AMA Supercross Championship, unfolded at Lumen Field in Seattle, Washington. The event showcased fierce rivalries in both the 450SX and 250SX classes. Check out the Seattle Supercross 2025 main event results below:
| Position | Rider | Interval |
| 1 | Cooper Webb | 26 Laps |
| 2 | Chase Sexton | 0.794 |
| 3 | Aaron Plessinger | 15.961 |
| 4 | Ken Roczen | 24.724 |
| 5 | Dylan Ferrandis | 27.611 |
| 6 | Justin Cooper | 28.193 |
| 7 | Malcolm Stewart | 38.661 |
| 8 | Justin Barcia | 45.062 |
| 9 | Benny Bloss | 25 Laps |
| 10 | Justin Hill | 7.913 |
| Position | Rider | Interval |
| 1 | Cole Davies | 20 Laps |
| 2 | Garrett Marchbanks | 7.554 |
| 3 | Haiden Deegan | 8.859 |
| 4 | Julien Beaumer | 12.081 |
| 5 | Jo Shimoda | 37.851 |
| 6 | Michael Mosiman | 1 Lap |
| 7 | Enzo Lopes | 1 Lap |
| 8 | Coty Schock | 1 Lap |
| 9 | Cole Thompson | 1 Lap |
| 10 | Gavin Towers | 1 Lap |