Koki Maizono
JapanActive- Born
- May 24, 2000 (26 years old)
- Events
- Decathlon · 100 m
Koki Maizono is a Japan sprinter, born on May 24, 2000. He competes primarily in the 100m, 200m and 400m.
His personal bests include 11.03 in the 100m, 22.38 in the 200m, 50.04 in the 400m, 4:26.00 in the 1500m and 15.31 in the 110mH. He is currently active on the international athletics circuit, representing Japan.
Personal best · Decathlon6792
2026 season best6.22Jun 6, 2026 · Nagaragawa Stadium, Gifu
Personal best · 100 m11.03
Last competitionJapanese Combined Events ChampionshipsJun 7, 2026 · DNF
As of Oct 27, 2026: Decathlon 6792, 100 m 11.03, 2026 season best 6.22 (Jun 6, 2026, Nagaragawa Stadium, Gifu (JPN)) · Last competition: Japanese Combined Events Championships, Jun 7, 2026, DNF · 26 years old
Personal bests
WA points calculator →DisciplineResultAll-time
* Wind-assisted (> 2.0 m/s)
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | LJ | 6.22 | -0.1 | Jun 6, 2026 | Japanese Combined Events Championships |
| 2026 | 100m | 11.23 | +1.5 | Jun 6, 2026 | Japanese Combined Events Championships |
| 2026 | 110mH | 15.56 | +3.3 | Mar 21, 2026 | The 3rd Miyazaki Athletics Records Meeting |
| 2025 | HJ | 1.79 | – | Jun 21, 2025 | 2nd Chukyo University Saturday Competition |
| 2025 | LJ | 6.75 | +1.7 | Jun 21, 2025 | 2nd Chukyo University Saturday Competition |
| 2025 | 100m | 11.15 | +0.2 | Jun 21, 2025 | 2nd Chukyo University Saturday Competition |
| 2025 | SP | 11.78 | – | Jun 21, 2025 | 2nd Chukyo University Saturday Competition |
| 2025 | 110mH | 15.31 | +0.1 | Jun 8, 2025 | 69th Kansai Inter-Corporate Track & Field Championships |