- 400m Championship 22nd PR48.06a
Athlete
Griffin Backman
Highland · 2026
Personal records
| Event | PR | Where | 2026 | Furthest |
|---|---|---|---|---|
| 400m · 1 | 48.06a | Nike Outdoor Nationals & USATF U20 Championships · Jun 18, 2026 | 48.06a |
2026
Highland · grade 10 · 1 meet
Athlete
Highland · 2026
| Event | PR | Where | 2026 | Furthest |
|---|---|---|---|---|
| 400m · 1 | 48.06a | Nike Outdoor Nationals & USATF U20 Championships · Jun 18, 2026 | 48.06a |
Highland · grade 10 · 1 meet