Naoko Kobayashi
- Born
- Oct 19, 2004 (22 years old)
Naoko Kobayashi is a Japan relay runner, born on October 19, 2004. She competes primarily in the 4x100m.
Her personal bests include 48.09 in the 4x100m. She is currently active on the international athletics circuit, representing Japan.
2025 season best48.30May 4, 2025 · Yanmar Stadium Nagai, Osaka
Last competitionThe 102nd Kansai Inter University Track&Field ChampionshipsMay 4, 2025 · 48.30
As of Nov 15, 2026: 2025 season best 48.30 (May 4, 2025, Yanmar Stadium Nagai, Osaka (JPN)) · Last competition: The 102nd Kansai Inter University Track&Field Championships, May 4, 2025, 48.30 · 22 years old
Personal bests
DisciplineResultAll-time
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2025 | 4x100m | 48.30 | – | May 4, 2025 | The 102nd Kansai Inter University Track&Field Championships |
| 2024 | 4x100m | 48.09 | – | May 22, 2024 | The 101st Kansai Inter University Track&Field Championships, Takebishi Stadium, Kyoto |