Natsumi Seo

JapanJapan
Born
May 12, 2006 (20 years old)
Events
1500 m

Natsumi Seo is a Japan middle-distance runner, born on May 12, 2006. She competes primarily in the 1500m.

Her personal bests include 4:54.49 in the 1500m. She ranks 3045th all-time in the 1500m for Japan. She is currently active on the international athletics circuit, representing Japan.

Personal best · 1500 m4:54.49
#3045 in Japan
2025 season best4:56.17Jul 13, 2025 · Citizens Athletics Stadium, Kushiro
2025 season best
Last competition38th Chuhei Nambu Memorial Athletics Meeting, Citizens Athletics Stadium, KushiroJul 13, 2025 · 4:58.92
38th Chuhei Nambu Memorial Athletics Meeting, Citizens Athletics Stadium, Kushiro

As of Nov 14, 2026: 1500 m 4:54.49, 2025 season best 4:56.17 (Jul 13, 2025, Citizens Athletics Stadium, Kushiro (JPN)) · Last competition: 38th Chuhei Nambu Memorial Athletics Meeting, Citizens Athletics Stadium, Kushiro, Jul 13, 2025, 4:58.92 · 20 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
1500mSapporo 2023Japan 1500 m all-time list4:54.49808 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
20251500m 4:56.17–Jul 13, 202538th Chuhei Nambu Memorial Athletics Meeting, Citizens Athletics Stadium, Kushiro
20241500m 4:56.71–Jun 11, 202477th Hokkaido High School Championships
20231500m 4:54.49–Jun 14, 202376th Hokkaido High School Championships, Atsubetsu Park Stadium, Sapporo
FAQ

Frequently asked questions

Natsumi Seo's 1500 m personal best is 4:54.49, set on Jun 14, 2023 in Atsubetsu Park Stadium, Sapporo (JPN).

Natsumi Seo competes in the 1500 m.

2025 season best: 4:56.17, set on Jul 13, 2025 in Citizens Athletics Stadium, Kushiro (JPN). Last competition: 38th Chuhei Nambu Memorial Athletics Meeting, Citizens Athletics Stadium, Kushiro on Jul 13, 2025, 4:58.92.