Boys / Men · 400 Meters · Varsity
| Pl | Athlete / entry | Gr | School / team | Mark |
| 1. | Stefon GoudeauPlace 1. · Grade 12 · New Image Tr,Los An | 12 | New Image Tr,Los An | 48.91a |
| 2. | Austin LietzPlace 2. · Grade 12 · Southern Cal,Altade | 12 | Southern Cal,Altade | 49.23a |
| 3. | Eric StephensPlace 3. · Grade 11 · Stephens, Er,Edmono | 11 | Stephens, Er,Edmono | 50.03a |
| 4. | Isaiah LapioliPlace 4. · Grade 11 · Elevate Athletics | 11 | Elevate Athletics | 50.28a PR |
| 5. | C J HicksPlace 5. · Grade 12 · Southern Cal,Altade | 12 | Southern Cal,Altade | 50.44a |
| 6. | Anthony EasterPlace 6. · Grade 11 · Rancho Cucamonga | 11 | Rancho Cucamonga | 50.46a PR |
| 7. | Grady WintersPlace 7. · Grade 12 · Blazers,Grand Junct | 12 | Blazers,Grand Junct | 50.66a |
| 8. | Dylan ScottPlace 8. · Grade 11 · Carondelet | 11 | Carondelet | 50.67a PR |
| 9. | James LovePlace 9. · Grade 11 · YMCA Team Idaho | 11 | YMCA Team Idaho | 50.69a PR |
| 10. | Dominic BentilPlace 10. · Grade 10 · Lone Peak | 10 | Lone Peak | 51.02a |
| 11. | Nolan PflugPlace 11. · Grade 12 · Blazers,Grand Junct | 12 | Blazers,Grand Junct | 51.16a |
| 12. | Joe YorkPlace 12. · Grade 12 · Nordhoff | 12 | Nordhoff | 51.32a PR |
| 13. | Matthew DeanPlace 13. · Grade 12 · Idaho Dash Track | 12 | Idaho Dash Track | 51.86a |
| 14. | Tyler CondensaPlace 14. · Grade 11 · South Bay Track | 11 | South Bay Track | 51.94a PR |
| 15. | Alex WesemanPlace 15. · Grade 12 · Fairview | 12 | Fairview | 51.98a PR |
| 16. | Alijah GrayPlace 16. · Grade 11 · YMCA Team Idaho | 11 | YMCA Team Idaho | 52.43a |
| 17. | Isaki LawPlace 17. · Grade 11 · South Bay Track | 11 | South Bay Track | 52.85a |