- Boys 400 M
- 8 Advance: Top 1 Each Heat plus Next 4 Best Times
- Heat 1 Prelims
- 2Reagor, Curtis (11)Casa Roble
- 3Tholley, Halim (11)Laguna Creek
- 4Dailey, John (12)Whitney
- 5Rogers, Charles (12)Edison
- 6Day, Finn (11)Christian Bros
- 7Traynham, Jackson (10)Cosumnes Oaks
- Heat 2 Prelims
- 2Gray, Hayden (10)Elk Grove
- 3Camacho, Teo (12)Casa Roble
- 4Chavez, Brayden (11)Vanden
- 5Castro, Cristian (12)Merced
- 6Krug, Leo (12)Del Campo
- 7Cantwell, Tanner (12)Roseville
- Heat 3 Prelims
- 2Jackson, Carter (10)Granite Bay
- 3Tyson, Eric (11)Rodriguez
- 4Bean-Seay, Malachi (12)Laguna Creek
- 5Owens, Tyree (12)Edison
- 6Dillon, Braiden (12)Rocklin
- 7Medina, Isaiah (12)Los Banos
- Heat 4 Prelims
- 2Lofton, Trey (11)Folsom
- 3Renshaw, Xavier (11)Merrill West
- 4Stout, Joey (12)Pitman
- 5Weathers, Elias (12)Cosumnes Oaks
- 6Wortham, Evan (11)Armijo
- 7Lighthall, Joseph (12)Hughson
- 8Diab, Yousef (11)Liberty Ranch