Masato (藤木真人) Fujiki
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15
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
5,2%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 989; Σ finishers = 19 063. 989 / 19 063 × 100 = 5.19%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 229 km
Longest race100,0 km
28. Lake Saroma 100 km Ultramarathon (JPN) — 30/6/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road32,5%
Trail67,5%
Records
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 30/6/2013 | 28. Lake Saroma 100 km Ultramarathon (JPN) | 100,00 | ×3 |
| ✓ 2 | 19/5/2013 | 19th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 3 | 24/6/2012 | 27. Lake Saroma 100 km Ultramarathon (JPN) | 100,00 | ×3 |
| ✓ 4 | 18/7/2010 | 3rd OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 5 | 24/6/2007 | 22. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 6 | 25/6/2006 | 21. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 7 | 16/5/2004 | 10th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 8 | 9/10/2011 | 19th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 9 | 11/10/2009 | 17th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 10 | 14/10/2007 | 15th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 11 | 8/10/2006 | 14th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 12 | 10/10/2004 | 12th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 13 | 12/10/2002 | 10th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 14 | 18/9/2011 | 1st Hakuba Int. Trail Run | 50,00 | ×1 |
| ✓ 15 | 11/4/2010 | 2nd OSJ Okukuji Trail 50k | 50,00 | ×1 |