| Time | Date | Name | Meet |
|---|---|---|---|
| 52.27 | Feb. 26, 2024 | Dannik Khais | PIAA DISTRICT 11 AAA Championships (c) |
| 53.69 | Feb. 17, 2024 | Dannik Khais | Emmaus Last Chance (c) |
| 54.76 | Dec. 21, 2023 | Pedro Teran | PHS vs. Emmaus High School |
| 54.91 | Feb. 25, 2019 | James Zhang | PIAA District XI AAA Championship (c) |
| 55.64 | Feb. 26, 2018 | James Zhang | PIAA District XI AAA Championships (c) |
| 57.78 | Jan. 6, 2018 | James Zhang | New Year's Meet Challenge |
| 59.18 | Dec. 9, 2017 | James Zhang | Cedar Crest Classic |
