Hisashi (田中久士) Tanaka
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Born : 1978
Cat. M45 Ultrarunner since 2015
17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
1
Countries visited ?Japan
Japan68,4%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 8 232; Σ finishers = 12 027. 8 232 / 12 027 × 100 = 68.45%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 388 km
> 100 km2
Longest race109,0 km
2nd Hiroshima Wangan Trail Run — 23/3/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road52,0%
Trail48,0%
Records
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 23/3/2024 | 2nd Hiroshima Wangan Trail Run | 109,00 | ×3 |
| ✓ 2 | 15/11/2025 | 4th Kumagawa Revival Trail | 101,00 | ×3 |
| ✓ 3 | 7/10/2017 | 19th Yukihashi to Beppu 100 km | 100,00 | ×3 |
| ✓ 4 | 10/10/2015 | 17th Yukihashi to Beppu 100 km | 100,00 | ×3 |
| ✓ 5 | 6/6/2015 | 25th Aso Caldera Super Marathon 100 km | 100,00 | ×3 |
| ✓ 6 | 14/6/2026 | 10th JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 7 | 8/6/2025 | 9th JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 8 | 9/6/2024 | 8th JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 9 | 11/6/2023 | 7th JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 10 | 10/6/2018 | 2nd JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 11 | 23/7/2017 | 5th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×2 |
| ✓ 12 | 24/7/2016 | 4th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×2 |
| ✓ 13 | 21/7/2024 | 12th Kirishima Ebino-kougen Extreme Trail | 66,00 | ×2 |
| ✓ 14 | 23/7/2023 | 11th Kirishima Ebino-kougen Extreme Trail | 66,00 | ×2 |
| ✓ 15 | 28/5/2017 | 2nd Osorakan-Trail | 65,00 | ×1 |
| ✓ 16 | 1/6/2024 | 7th Mizukami Mountain Party | 64,00 | ×1 |
| ✓ 17 | 28/5/2023 | 8th Akiyoshidai Karst Trail Run | 60,00 | ×1 |