Siho Masano

Born
Jan 7, 2004 (22 years old)
Events
400 m · 300 Metres

Siho Masano is a Japan sprinter, born on January 7, 2004. She competes primarily in the 100m, 200m and 400m.

Her personal bests include 12.77 in the 100m, 25.40 in the 200m, 55.82 in the 400m, 3:44.96 in the 4x400m and 40.12 in the 300m. She is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m55.82
2024 season best57.80Jul 14, 2024 · Municipal Mizuho Stadium, Nagoya
Personal best · 300 Metres40.12
Last competitionNAGASE Cup 2024Oct 13, 2024 · 58.95

As of Nov 15, 2026: 400 m 55.82, 300 Metres 40.12, 2024 season best 57.80 (Jul 14, 2024, Municipal Mizuho Stadium, Nagoya (JPN)) · Last competition: NAGASE Cup 2024, Oct 13, 2024, 58.95 · 22 years old

DisciplineResultAll-time
100mNagoya 2020Japan 100 m all-time list12.77845 pts–
200mNagoya 2021Japan 200 m all-time list25.40905 pts–
400mFukui 2021Japan 400 m all-time list55.82983 pts–
4x400mTokyo 2021Japan 4 × 400 m all-time list3:44.96–
300mNagoya 202140.12952 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2024400m 57.80–Jul 14, 202483rd Aichi Athletics Championships and National Sports Athlete Selection, Municipal Mizuho Stadium, Nagoya
20244x400m 3:47.52–Sep 29, 202435th Kanto University Rookies Athletics Championships
2023400m 58.34–Sep 22, 202334th Kanto University Rookies Athletics Championships, Gion Stadium, Sagamihara
20234x400m 3:51.64–Sep 24, 202334th Kanto University Rookies Athletics Championships, Gion Stadium, Sagamihara
2022200m 26.99-1.5Jul 16, 2022Municipal Mizuho Stadium, Nagoya (JPN)
2022400m 57.76–Sep 17, 2022Gion Stadium, Sagamihara (JPN)
20224x400m 3:45.98–Aug 7, 2022Keio Univ. Hiyoshi Athletics Field, Yokohama (JPN)
2021100m 12.78+1.4Apr 10, 2021Municipal Mizuho Stadium, Nagoya (JPN)
FAQ

Frequently asked questions

Siho Masano's 400 m personal best is 55.82, set on Jul 28, 2021 in Prefectural Stadium, Fukui (JPN).

Siho Masano competes in the 400 m and 300 Metres.

2024 season best: 57.80, set on Jul 14, 2024 in Municipal Mizuho Stadium, Nagoya (JPN). Last competition: NAGASE Cup 2024 on Oct 13, 2024, 58.95.