Keiichi (田中圭一) Tanaka
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Born : 1972
Cat. M50 Ultrarunner since 2011
12
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
Japan15,0%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 1 113; Σ finishers = 7 439. 1 113 / 7 439 × 100 = 14.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 253 km
> 100 km5
> 160 km1
Longest race160,9 km
2nd Ultra-Trail Mount Fuji (UTMF) — 26/4/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road39,9%
Trail51,3%
Stage8,8%
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/4/2013 | 2nd Ultra-Trail Mount Fuji (UTMF) | 160,93 | ×4 |
| ✓ 2 | 20/9/2014 | 1st SkyView Ultra-Trail - Yamada Noboru Memorial Cup | 120,00 | ×3 |
| ✓ 3 | 15/9/2013 | 5th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 4 | 14/7/2013 | 1st Mt. Taisetsu Trail Journey 110 km Stage Race | 110,00 | ×3 |
| ✓ 5 | 16/9/2012 | 4th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 6 | 19/10/2014 | 20th River Shimanto 100km | 100,00 | ×3 |
| ✓ 7 | 29/9/2013 | 16th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 8 | 9/6/2013 | 2nd Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 9 | 10/6/2012 | 1st Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 10 | 25/9/2011 | 14th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 11 | 7/10/2012 | 20th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 12 | 20/10/2013 | 4th OSJ Hyonosen Mountains Trail Race | 71,00 | ×2 |