Ryota Tamazawa
JapanActive- Born
- Jan 25, 1997 (29 years old)
- Events
- Half Marathon · Marathon
Ryota Tamazawa is a Japan long-distance runner, born on January 25, 1997. He competes primarily in the 3000m, Semi and Marathon.
His personal bests include 8:58.83 in the 3000m, 1:07:31 in the Semi, 2:24:49 in the Marathon and 14:47 in the 5Kilometre. He is currently active on the international athletics circuit, representing Japan.
Personal best · Half Marathon1:07:31
2026 season best1:09:39Jan 11, 2026
Personal best · Marathon2:24:49
Last competitionTokyo New Year Half MarathonJan 11, 2026 · 1:09:39
As of Nov 14, 2026: Half Marathon 1:07:31, Marathon 2:24:49, 2026 season best 1:09:39 (Jan 11, 2026) · Last competition: Tokyo New Year Half Marathon, Jan 11, 2026, 1:09:39 · 29 years old
Personal bests
WA points calculator →DisciplineResultAll-time
5KilometreTokyo 202514:47–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | Semi | 1:09:39 | – | Jan 11, 2026 | Tokyo New Year Half Marathon |
| 2025 | 5Kilometre | 14:47 | – | Apr 13, 2025 | Adidas Tokyo City Run |
| 2025 | Semi | 1:09:07 | – | Oct 19, 2025 | Tokyo Legacy Half Marathon |
| 2025 | Marathon | 2:25:54 | – | Feb 24, 2025 | Osaka Marathon, Osaka |
| 2024 | Semi | 1:07:31 | – | Nov 17, 2024 | Ageo City Half Marathon, Ageo |
| 2024 | Marathon | 2:33:34 | – | Feb 25, 2024 | Osaka Marathon |
| 2023 | Semi | 1:10:37 | – | Jan 29, 2023 | 2023 Osaka Half Marathon, Osaka Half Marathon Course, Osaka |
| 2022 | Marathon | 2:37:04 | – | Feb 27, 2022 | The Combined 10th Osaka Marathon and 77th Lake Biwa Mainichi Marathon |