| 1 | Justin Hazell | 2018 | El Camino Real Senior High (LA) | 15:03.80 | 1 | |
| 2 | Colin FitzGerald | 2018 | Crescenta Valley (SS) | 15:10.10 | 2 | |
| 3 | Liam Anderson | 2019 | Redwood High School (NC) | 15:10.30 | 3 | |
| 4 | Joaquin Martinez De Pinillos | 2018 | Cathedral Catholic (SD) | 15:11.20 | 4 | |
| 5 | Tyler Spencer | 2018 | Eleanor Roosevelt (SS) | 15:11.80 | 5 | |
| 6 | Kevin Ramos | 2019 | Rubidoux High (SS) | 15:14.90 | -- | |
| 7 | Matt Strangio | 2020 | Jesuit (SJ) | 15:15.50 | 6 | |
| 8 | Meika Beaudoin-rousseau | 2018 | Bellarmine College Prep (CC) | 15:16.80 | 7 | |
| 9 | Elias Opsahl | 2018 | Redlands East Valley High (SS) | 15:16.90 | -- | |
| 10 | Xavier Court | 2018 | Mira Costa High School (SS) | 15:19.00 | -- | |
| 11 | Raymon Ornelas | 2018 | Eleanor Roosevelt (SS) | 15:19.40 | 8 | |
| 12 | Ethan Danforth | 2019 | Canyon Canyon Country (SS) | 15:19.70 | 9 | |
| 13 | Carlos Carvajal | 2018 | Great Oak High School (SS) | 15:23.00 | 10.5 | |
| 13 | Shyam Kumar | 2018 | St. Francis Mountain View (CC) | 15:23.00 | 10.5 | |
| 15 | Jaron Farnham | 2018 | Del Norte High School (SD) | 15:24.50 | 12 | |
| 16 | Jack Landgraf | 2018 | Dana Hills High School (SS) | 15:26.10 | 13 | |
| 17 | Alexis Garcia | 2019 | Newport Harbor High School (SS) | 15:26.20 | -- | |
| 18 | Caleb Niednagel | 2020 | Dana Hills High School (SS) | 15:26.50 | 14 | |
| 19 | Adrian Vargas | 2018 | El Toro High School (SS) | 15:26.60 | 15 | |
| 20 | Adrian Schroeder | 2018 | Dublin High School (NC) | 15:26.80 | 16 | |
| 21 | Darius Riley | 2018 | Rancho Cucamonga (SS) | 15:27.00 | -- | |
| 22 | Samuel Boone | 2018 | Mt. Carmel High (SD) | 15:28.10 | 17 | |
| 23 | Isaiah Seidman | 2019 | West Ranch (SS) | 15:29.80 | 18 | |
| 24 | Simon Fuller | 2019 | Dana Hills High School (SS) | 15:30.60 | 19 | |
| 25 | Anthony Grover | 2020 | JSerra Catholic (SS) | 15:31.50 | 20.5 | |
| 25 | Jacob Stanford | 2019 | La Costa Canyon (SD) | 15:31.50 | 20.5 |