Kei Tsuboi
JapanActive- Born
- Jun 22, 1997 (29 years old)
- Events
- Half Marathon · 10 000 m
Kei Tsuboi is a Japan middle-distance runner, born on June 22, 1997. He competes primarily in the 1500m, 3000m and 5000m.
His personal bests include 3:51.80 in the 1500m, 8:22.81 in the 3000m, 14:16.65 in the 5000m, 28:56.85 in the 10000m and 1:03:25 in the Semi. He is currently active on the international athletics circuit, representing Japan.
Personal best · Half Marathon1:03:25
2026 season best15:08Sep 27, 2026
Personal best · 10 000 m28:56.85
Last competitionNike Melbourne Marathon Festival - MarathonOct 11, 2026 · 2:22:19
As of Nov 12, 2026: Half Marathon 1:03:25, 10 000 m 28:56.85, 2026 season best 15:08 (Sep 27, 2026) · Last competition: Nike Melbourne Marathon Festival - Marathon, Oct 11, 2026, 2:22:19 · 29 years old
Personal bests
WA points calculator →DisciplineResultAll-time
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 5Kilometre | 15:08 | – | Sep 27, 2026 | ADIZERO 5K Tokyo Challenge |
| 2026 | Marathon | 2:22:19 | – | Oct 11, 2026 | Nike Melbourne Marathon Festival - Marathon |
| 2025 | 30Kilometr | 1:38:36 | – | Feb 16, 2025 | 57th The Ohme 30 & 10 km Road Race |
| 2025 | Marathon | 2:18:37 | – | Apr 6, 2025 | Gunsan Saemangeum Marathon |
| 2024 | Marathon | 2:23:15 | – | Mar 3, 2024 | Tokyo Marathon |
| 2022 | 10000m | 29:33.85 | – | Jun 4, 2022 | NITTAIDAI Athletic Stadium, Yokohama (JPN) |
| 2022 | Marathon | 2:17:49 | – | Aug 28, 2022 | Sapporo (JPN) |
| 2021 | 3000m | 8:22.81 | – | Apr 3, 2021 | Komazawa Olympic Park Athletic Stadium, Tokyo (JPN) |