| Event / course | Mark | Meet | Date |
|---|---|---|---|
| 400 Meters · OutdoorThe Qualifier · Mar 18 | 58.60a | The Qualifier | March 18, 2023 |
Best marks from the meets included here. Cross Country bests are grouped by course and distance.
| Date | Meet | Event | Pl | Mark | Gr |
|---|---|---|---|---|---|
| Mar 28 | Bonita V GlendoraMar 28 · 400 Meters · Place 4 · Glendora (SS) | 400 Meters | 4 | 59.92 | 10 |
| Mar 18 | The QualifierMar 18 · 400 Meters · Place 29 · Glendora | 400 Meters | 29. | 58.60a PB | 10 |
| Mar 8 | Ayala v Glendora Dual MeetMar 8 · 400 Meters · Place 2 · Glendora | 400 Meters | 2 | 59.49a | — |
| Mar 4 | Colt ClassicMar 4 · 400 Meters · Place 30 · Glendora (SS) | 400 Meters | 30 | 1:00.70 | 10 |
| Mar 2 | Claremont HS Dual MeetMar 2 · 400 Meters · Place 2 · Glendora | 400 Meters | 2 | 1:01.73a | — |