400 m, Women
| Competition | 2023 East Asian Youth Games |
|---|---|
| Venue |
Ulaanbaatar
 MGL
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Haruna Seta |  JPN |
55.70 | ||
| 🥈 | Zhang Caixia |  CHN |
55.91 | ||
| 🥉 | Zheng Yingchao | CHN |
56.62 |
| Competition | 2023 East Asian Youth Games |
|---|---|
| Venue |
Ulaanbaatar
MGL
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Haruna Seta | JPN |
55.70 | ||
| 🥈 | Zhang Caixia | CHN |
55.91 | ||
| 🥉 | Zheng Yingchao | CHN |
56.62 |