Nagisa Seko

JapanJapanActive
Born
May 17, 2006 (20 years old)
Events
5000 m

Nagisa Seko is a Japan middle-distance runner, born on May 17, 2006. She competes primarily in the 1500m, 3000m and 5000m.

Her personal bests include 4:35.59 in the 1500m, 9:55.17 in the 3000m and 15:56.70 in the 5000m. She is currently active on the international athletics circuit, representing Japan.

Personal best · 5000 m15:56.70
2026 season best16:24.69Apr 26, 2026 · Lemon Gas Stadium, Hiratsuka
2026 season best
Last competitionThe 105th Kanto Inter-University Track＆Field ChampionshipsMay 24, 2026 · 16:30.10
The 105th Kanto Inter-University Track＆Field Championships

As of Nov 14, 2026: 5000 m 15:56.70, 2026 season best 16:24.69 (Apr 26, 2026, Lemon Gas Stadium, Hiratsuka (JPN)) · Last competition: The 105th Kanto Inter-University Track＆Field Championships, May 24, 2026, 16:30.10 · 20 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
1500mShizuoka 2024Japan 1500 m all-time list4:35.59937 pts––
3000mFukuroi 2022Japan 3000 m all-time list9:55.17929 pts––
5000mYokohama 2025Japan 5000 m all-time list15:56.701,056 pts–#954

Progression

SeasonDisciplineResultWindDateCompetitions
20265000m 16:24.69–Apr 26, 2026All Japan University Track & Field Challenge
20255000m 15:56.70–Nov 15, 202518th NITTAIDAI Challenge Games, NITTAIDAI Athletic Stadium, Yokohama
20241500m 4:35.59–Jul 14, 2024Shizuoka Championship
20243000m 9:55.44–May 26, 2024Inter Highschool Shizuoka Meeting, Prefectural Shizuoka Stadium, Fukuroi
20233000m 9:59.31–Jun 18, 2023Tokai Inter High Scool Athletic Meeting, Prefectural Shizuoka Stadium, Fukuroi
20223000m 9:55.17–May 22, 2022Prefectural Shizuoka Stadium, Fukuroi (JPN)
20211500m 4:51.42–Mar 27, 2021Athletics Stadium, Fuji (JPN)
20203000m 10:22.61–Nov 15, 2020Prefectural Shizuoka Stadium, Fukuroi (JPN)
FAQ

Frequently asked questions

Nagisa Seko's 5000 m personal best is 15:56.70, set on Nov 15, 2025 in NITTAIDAI Athletic Stadium, Yokohama (JPN).

Nagisa Seko competes in the 5000 m.

2026 season best: 16:24.69, set on Apr 26, 2026 in Lemon Gas Stadium, Hiratsuka (JPN). Last competition: The 105th Kanto Inter-University Track＆Field Championships on May 24, 2026, 16:30.10.