Federation · JPN
Japan national best marks
Best marks by Japan athletes in each event, compiled from the all-time lists we import. Derived national bests — not official national records (see note below).
21
Stored marks
20
Distinct marks shown
Men's 1500m
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Kazuki Kawamura | 3:35.42 | 17 Jul 2021 | — | — |
| 2 | Kazuto Iizawa | 3:35.77 | 12 May 2024 | — | — |
| 3 | Kazuto Iizawa | 3:35.90 | 30 May 2026 | — | — |
| 4 | Nagiya Mori | 3:36.53 | 30 May 2026 | — | — |
| 5 | Kazuto Iizawa | 3:36.55 | 2 Oct 2022 | — | — |
| 6 | Ryuji Miura | 3:36.59 | 9 Apr 2022 | — | — |
| 7 | Nanami Arai | 3:36.63 | 22 Jun 2022 | — | — |
| 8 | Ryoji Tatezawa | 3:36.68 | 9 Jun 2024 | — | — |
| 9 | Hyuga Endo | 3:36.69 | 9 Apr 2022 | — | — |
| 10 | Kazuto Iizawa | 3:36.81 | 6 Jul 2025 | — | — |
| 11 | Nanami Arai | 3:37.05 | 29 May 2021 | — | — |
| 12 | Kazuki Kawamura | 3:37.08 | 16 Jul 2022 | — | — |
| 12= | Kazuto Iizawa | 3:37.08 | 28 Jun 2024 | — | — |
| 14 | Kazuto Iizawa | 3:37.16 | 23 Jul 2025 | — | — |
| 15 | Keita Satoh | 3:37.18 | 17 Jul 2021 | — | — |
| 16 | Keisuke Morita | 3:37.36 | 16 Jul 2022 | — | — |
| 17 | Fumikazu Kobayashi | 3:37.42 | 31 Jul 2004 | — | — |
| 18 | Kazuto Iizawa | 3:37.69 | 17 May 2026 | — | — |
| 19 | Oziro Honda | 3:37.72 | 30 May 2026 | — | — |
| 20 | Allon Tatsunami Clay | 3:37.84 | 1 May 2026 | — | — |
| 21 | Yuta Bando | 3:37.99 | 17 Jul 2021 | — | — |
Every mark in scope within the compiled depth. Equal marks share a rank ("1=" style). An athlete with marks for two nations appears under each nation represented at the time (e.g. Obikwelu under Nigeria and Portugal).
About this derivation
These lists are derived from the marks in our database — including the complete legal all-time lists imported from alltime-athletics.com — grouped by the nation the athlete was representing at each mark. They are not official national records: federations ratify national records under their own eligibility rules, and some marks here may not qualify.