15-18 Boys Long Course Relays
| Event | Recordholder | Time | Date |
| 200 Free Relay | Jack Descombes, Christian Garkani, Brett Maus, Jared Namba | 1:40.31 | Aug-10 |
| 400 Free Relay | Christian Garkani, Liam Karas, Corey Okubo, Hunter Sa-Nguansap | 3:32.18 | Aug-13 |
| 800 Free Relay |
Corey Okubo, Liam Karas, Christian Garkani, Ken Takahashi |
7:43.63 | Aug-13 |
| 200 Medley Relay | Liam Von Schonfeldt, Taylor Thongintra, Matthew Chiang, Isaac Paul | 1:48.44 | Jun-25 |
| 400 Medley Relay | Christian Garkani, Hunter Sa-Nguansap, Corey Okubo, Liam Karas | 3:52:79 | Aug-13 |
