Keiji (藤井慶治) Fujii
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12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
26
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
55,5%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 4 047; Σ finishers = 7 289. 4 047 / 7 289 × 100 = 55.52%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races851 km
Longest race100,0 km
31. Lake Saroma 100 km Ultramarathon — 26/6/2016
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road83,2%
Trail16,8%
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/6/2016 | 31. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 2 | 24/4/2016 | 18. Okukumano 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 20/9/2015 | 6th Akiota Yajirushi Marathon 88km | 88,00 | ×3 |
| ✓ 4 | 19/5/2013 | Saba Highway Ultramarathon | 76,00 | ×2 |
| ✓ 5 | 18/10/2015 | 6th OSJ Hyonosen Mountains Trail Race | 73,00 | ×2 |
| ✓ 6 | 3/5/2013 | 21. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 7 | 28/9/2014 | 17th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 8 | 15/9/2013 | 13th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 9 | 30/3/2014 | 10th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 10 | 27/10/2013 | 9th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 11 | 24/3/2013 | 8th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 12 | 11/9/2016 | 1st Koyasan and Ryujin-Onsen 50 km Ultra Marathon | 50,00 | ×1 |