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).
26
Stored marks
24
Distinct marks shown
Men's 800m
Derived 14 Sep 2026
| # | Athlete | Mark | Date | Venue | Age |
|---|---|---|---|---|---|
| 1 | Ko Ochiai | 1:43.45 | 30 May 2026 | — | — |
| 2 | Ko Ochiai | 1:43.90 | 3 May 2026 | — | — |
| 3 | Allon Tatsunami Clay | 1:44.32 | 12 Jul 2026 | — | — |
| 4 | Allon Tatsunami Clay | 1:44.51 | 15 Jul 2026 | — | — |
| 5 | Allon Tatsunami Clay | 1:44.62 | 21 Jul 2026 | — | — |
| 6 | Allon Tatsunami Clay | 1:44.63 | 29 May 2026 | — | — |
| 7 | Yugo Shikata | 1:44.94 | 30 May 2026 | — | — |
| 8 | Allon Tatsunami Clay | 1:44.98 | 12 Jun 2026 | — | — |
| 9 | Hiroki Minamoto | 1:45.01 | 30 May 2026 | — | — |
| 10 | Allon Tatsunami Clay | 1:45.11 | 16 May 2026 | — | — |
| 10= | Allon Tatsunami Clay | 1:45.11 | 18 Jul 2026 | — | — |
| 12 | Ko Ochiai | 1:45.20 | 5 Oct 2025 | — | — |
| 13 | Allon Tatsunami Clay | 1:45.24 | 17 Apr 2026 | — | — |
| 14 | Nanaki Manno | 1:45.31 | 30 May 2026 | — | — |
| 15 | Sho Tanabe | 1:45.32 | 30 May 2026 | — | — |
| 16 | Sota Okamura | 1:45.51 | 30 May 2026 | — | — |
| 17 | Junya Matsumoto | 1:45.64 | 3 May 2026 | — | — |
| 18 | Syou Kawamoto | 1:45.75 | 11 May 2014 | — | — |
| 18= | Hiroki Minamoto | 1:45.75 | 17 Jul 2021 | — | — |
| 20 | Allon Tatsunami Clay | 1:45.76 | 10 Jun 2026 | — | — |
| 21 | Ko Ochiai | 1:45.82 | 29 Jun 2024 | — | — |
| 22 | Syou Kawamoto | 1:45.83 | 17 Jul 2021 | — | — |
| 23 | Mikuto Kaneko | 1:45.85 | 17 Jul 2021 | — | — |
| 24 | Ko Ochiai | 1:45.88 | 27 Apr 2025 | — | — |
| 25 | Ko Ochiai | 1:45.93 | 5 Jul 2025 | — | — |
| 26 | Syou Kawamoto | 1:45.97 | 3 Jul 2016 | — | — |
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.