Nao Masumaru

JapanJapanActive
Born
Nov 16, 2006 (19 years old)
Events
1500 m

Nao Masumaru is a Japan middle-distance runner, born on November 16, 2006. She competes primarily in the 800m, 1500m and 3000m.

Her personal bests include 2:13.99 in the 800m, 4:30.90 in the 1500m, 10:10.78 in the 3000m and 2:55.05 in the 1000m. She is currently active on the international athletics circuit, representing Japan.

Personal best · 1500 m4:30.90
2026 season best4:49.67Aug 8, 2026
2026 season best
Last competition1st ICAAK Athletics GamesAug 8, 2026 · 4:49.67
1st ICAAK Athletics Games

As of Nov 14, 2026: 1500 m 4:30.90, 2026 season best 4:49.67 (Aug 8, 2026) · Last competition: 1st ICAAK Athletics Games, Aug 8, 2026, 4:49.67 · 19 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
800mMatsuyama 2022Japan 800 m all-time list2:13.99926 pts–
1500mFukuoka 2023Japan 1500 m all-time list4:30.90970 pts–
3000mIsahaya 2022Japan 3000 m all-time list10:10.78881 pts–
1000mMatsuyama 20212:55.05917 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
20261500m 4:49.67–Aug 8, 20261st ICAAK Athletics Games
20251500m 4:49.31–Sep 12, 2025The 78th West-Japan Inter-Unversity Athletc Championships
2023800m 2:14.60–Oct 7, 202341st All Kyushu High School Rookies' Meeting, Prefectural Stadium, Kumamoto
20231500m 4:30.90–Jun 15, 202376th Kita Kyushu High School Athletics Championships
2022800m 2:13.99–Oct 23, 2022Ehime Athletics Stadium, Matsuyama (JPN)
20221500m 4:40.63–Oct 14, 2022Sunrise Park, Saga (JPN)
20223000m 10:10.78–Jun 26, 2022Prefectural Stadium, Isahaya (JPN)
20211000m 2:55.05–Oct 22, 2021Ehime Athletics Stadium, Matsuyama (JPN)
FAQ

Frequently asked questions

Nao Masumaru's 1500 m personal best is 4:30.90, set on Jun 15, 2023 in Hakatanomori Athletic Stadium, Fukuoka (JPN).

Nao Masumaru competes in the 1500 m.

2026 season best: 4:49.67, set on Aug 8, 2026. Last competition: 1st ICAAK Athletics Games on Aug 8, 2026, 4:49.67.