Jonathan Simms
M · Born 2007-01-08 · 🇺🇸 USA
Personal bests
| Event | Best | World rank | Results | |
|---|---|---|---|---|
| 400 Metres | 43.92 | #5 | 1 | progression → |
Ranks are this season's placing among wind-legal, OK marks.
400 Metres — progression
| Date | Mark | Wind | Place | Competition |
|---|---|---|---|---|
| 2026-06-12 | 43.92 | Meet at Hayward Field, Eugene, OR (USA) |