Season-best marks by event
| # | Mark | Athlete | Yr | School | Dist |
|---|---|---|---|---|---|
| 1 | 49.94 | Zeph Yisrael | 11 | Radnor | D1 |
| 2 | 50.26 | Jackson Solomon | 12 | Ridley | D1 |
| 3 | 50.37 | Noah Engstrom | 11 | Radnor | D1 |
| 4 | 50.46 | Cadeo Estronza | 12 | Catasauqua | D1 |
| 5 | 52.24 | Mark Bendernagel | 11 | Conestoga |
31 athletes · 400m · District 1
| D1 |
| 6 | 52.39 | Nathan Weinrich | 12 | Penncrest | D1 |
| 7 | 53.31 | Noam Brodetzki | 12 | Harriton | D1 |
| 8 | 53.42 | Ben Schmoyer | 10 | Conestoga | D1 |
| 9 | 54.01 | Jackson Burwell | 10 | Ridley | D1 |
| 10 | 54.15 | Brendan Kawan | 11 | Penncrest | D1 |
| 11 | 54.26 | Daniel Walker | 11 | Harriton | D1 |
| 12 | 54.46 | Nicholas Asalone | 12 | Penncrest | D1 |
| 13 | 54.74 | Aidan Haas | 11 | Radnor | D1 |
| 14 | 54.99 | Noah Feldser | 11 | Radnor | D1 |
| 15 | 55.10 | Jaden Marshal | 11 | Ridley | D1 |
| 16 | 55.66 | Eric Wilson | 11 | Conestoga | D1 |
| 17 | 56.14 | Conor Hamilton | 10 | Conestoga | D1 |
| 18 | 56.15 | Ethan Sage | 9 | Harriton | D1 |
| 19 | 56.42 | Tyler Limandri | 11 | Catasauqua | D1 |
| 20 | 56.83 | Alex McKenzie | 11 | Radnor | D1 |
| 21 | 57.01 | Kamal Sheta | 10 | Ridley | D1 |
| 22 | 57.04 | Mylee Stewart | 9 | Ridley | D1 |
| 23 | 57.86 | Nolan Shiffler | 10 | Harriton | D1 |
| 24 | 58.45 | Gabriel Boulanger | 11 | Penncrest | D1 |
| 25 | 59.33 | Ryan Ayre | 10 | Radnor | D1 |
| 26 | 59.57 | Remy Soans | 10 | Harriton | D1 |
| 27 | 1:00.18 | Jason Savitski | 10 | Ridley | D1 |
| 28 | 1:00.69 | Graham Pugh | 10 | Conestoga | D1 |
| 29 | 1:01.04 | Shepard Lucas | 9 | Penncrest | D1 |
| 30 | 1:08.61 | Oscar Biren-Andreo | 9 | Harriton | D1 |
| 31 | 1:09.82 | Matthew Brooks | 10 | Radnor | D1 |
