Hiroki Kai
JapanActive- Born
- Aug 5, 1994 (32 years old)
- Events
- Marathon · Half Marathon
Hiroki Kai is a Japan long-distance runner, born on August 5, 1994. He competes primarily in the 5000m, 10000m and Semi.
His personal bests include 14:51.70 in the 5000m, 29:48.93 in the 10000m, 1:04:58 in the Semi and 2:15:17 in the Marathon. He is currently active on the international athletics circuit, representing Japan.
Personal best · Marathon2:15:17
2026 season best1:09:35Jan 11, 2026
Personal best · Half Marathon1:04:58
Last competitionTokyo New Year Half MarathonJan 11, 2026 · 1:09:35
As of Oct 28, 2026: Marathon 2:15:17, Half Marathon 1:04:58, 2026 season best 1:09:35 (Jan 11, 2026) · Last competition: Tokyo New Year Half Marathon, Jan 11, 2026, 1:09:35 · 32 years old
Personal bests
WA points calculator →Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | Semi | 1:09:35 | – | Jan 11, 2026 | Tokyo New Year Half Marathon |
| 2025 | LongTrail | 11:49:11 | – | Sep 27, 2025 | World Mountain & Trail Running Championships, Canfranc-Pirineos |
| 2024 | Marathon | 2:21:40 | – | Feb 25, 2024 | Osaka Marathon |
| 2023 | Marathon | 2:22:47 | – | Mar 5, 2023 | Tokyo Marathon |
| 2022 | Semi | 1:12:05 | – | Dec 18, 2022 | Bangsaen21 Half Marathon, Chon Buri |
| 2022 | Marathon | 2:15:17 | – | Feb 6, 2022 | Oita (JPN) |
| 2021 | Marathon | 2:17:09 | – | Feb 28, 2021 | The 76th Lake Biwa Mainichi Marathon |
| 2020 | 10000m | 30:35.68 | – | Oct 18, 2020 | Athletics Stadium, Hadano (JPN) |