Hironori Tachizako

JapanJapanActive
Born
Nov 18, 2005 (20 years old)
Events
800 m · 1500 m

Hironori Tachizako is a Japan middle-distance runner, born on November 18, 2005. He competes primarily in the 800m, 1500m and 3000m.

His personal bests include 1:47.97 in the 800m, 3:42.76 in the 1500m, 8:45.72 in the 3000m, 14:58.47 in the 5000m and 31:28.79 in the 10000m. He has earned 1 gold and 1 bronze medals in major international competitions. He is currently active on the international athletics circuit, representing Japan.

Personal best · 800 m1:47.97
2026 season best1:50.22May 5, 2026 · Edogawa Stadium, Tokyo
2026 season best
Personal best · 1500 m3:42.76
Last competition19th wttk & DEN-EN Club Middle Distance Record Challenge, Edogawa Stadium, TokyoMay 5, 2026 · 1:50.22
19th wttk & DEN-EN Club Middle Distance Record Challenge, Edogawa Stadium, Tokyo

As of Nov 13, 2026: 800 m 1:47.97, 1500 m 3:42.76, 2026 season best 1:50.22 (May 5, 2026, Edogawa Stadium, Tokyo (JPN)) · Last competition: 19th wttk & DEN-EN Club Middle Distance Record Challenge, Edogawa Stadium, Tokyo, May 5, 2026, 1:50.22 · 20 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
800mKagoshima 2023Japan 800 m all-time list1:47.971,085 pts–
1500mKumamoto 2025Japan 1500 m all-time list3:42.761,070 pts–
3000mKagoshima 2021Japan 3000 m all-time list8:45.72805 pts–
5000mKagoshima 2022Japan 5000 m all-time list14:58.47815 pts–
10000mTokorozawa 2024Japan 10 000 m all-time list31:28.79833 pts–
5KilometreTokorozawa 202414:26–

Progression

FAQ

Frequently asked questions

Hironori Tachizako's 800 m personal best is 1:47.97, set on Oct 17, 2023 in Prefectural Stadium, Kagoshima (JPN).

Hironori Tachizako competes in the 800 m and 1500 m.

2026 season best: 1:50.22, set on May 5, 2026 in Edogawa Stadium, Tokyo (JPN). Last competition: 19th wttk & DEN-EN Club Middle Distance Record Challenge, Edogawa Stadium, Tokyo on May 5, 2026, 1:50.22.