Naoto Ihara
- Born
- Jun 28, 1994 (32 years old)
- Events
- Half Marathon · Marathon
Naoto Ihara is a Japan long-distance runner, born on June 28, 1994. He competes primarily in the 5000m, 10000m and Semi.
His personal bests include 14:26.87 in the 5000m, 30:42.03 in the 10000m, 1:04:39 in the Semi, 2:21:18 in the Marathon and 32:30 in the 10Kilometr. He is currently active on the international athletics circuit, representing Japan.
Personal best · Half Marathon1:04:39
2022 season best2:21:18Feb 6, 2022 · Oita
Personal best · Marathon2:21:18
As of Nov 15, 2026: Half Marathon 1:04:39, Marathon 2:21:18, 2022 season best 2:21:18 (Feb 6, 2022, Oita (JPN)) · 32 years old
Personal bests
WA points calculator →DisciplineResultAll-time
10KilometrYamaguchi 202132:30–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2022 | Marathon | 2:21:18 | – | Feb 6, 2022 | Oita (JPN) |
| 2021 | 10000m | 30:42.03 | – | Nov 20, 2021 | Athletics Stadium, Kure (JPN) |
| 2021 | 10Kilometr | 32:30 | – | Oct 10, 2021 | Yamaguchi (JPN) |
| 2021 | Semi | 1:04:39 | – | Feb 14, 2021 | Yamaguchi (JPN) |
| 2020 | 5000m | 14:26.87 | – | Jul 4, 2020 | Athletics Stadium, Shibetsu (JPN) |
| 2019 | Semi | 1:06:01 | – | Feb 10, 2019 | All-Japan Corporate Team Half Marathon Championships |