Yoshitomo (藤井義友) 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.
28
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
37,6%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 2 213; Σ finishers = 5 886. 2 213 / 5 886 × 100 = 37.60%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races996 km
> 100 km4
Longest race143,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/9/2019 | 6th SkyView Ultra-Trail 140 - Yamada Noboru Memorial Cup | 143,00 | ×5 |
| ✓ 2 | 22/9/2018 | 5th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup | 129,00 | ×4 |
| ✓ 3 | 18/5/2024 | 9th Trainic World 100 km in Sai-No-Kuni | 109,20 | ×3 |
| ✓ 4 | 11/5/2019 | 4th Trainic World 100 km in Sai-No-Kuni | 106,00 | ×3 |
| ✓ 5 | 23/9/2017 | 4th SkyView Ultra-Trail 60 - Yamada Noboru Memorial Cup | 75,00 | ×2 |
| ✓ 6 | 25/6/2017 | 4. Spatrail - Shima to Kusatsu | 72,70 | ×2 |
| ✓ 7 | 26/6/2016 | 3. Spatrail - Shima to Kusatsu | 72,70 | ×2 |
| ✓ 8 | 13/10/2024 | 32th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 9 | 23/4/2022 | 1st KAI 69k | 69,00 | ×2 |
| ✓ 10 | 30/11/2025 | 12th Trainic world Soto-Chichibu Trail Run 50km | 50,00 | ×1 |
| ✓ 11 | 1/12/2024 | 11th Trainic world Soto-Chichibu Trail Run 50km | 50,00 | ×1 |
| ✓ 12 | 14/6/2025 | 4th KTF Trail running race - Rockin Bear | 48,00 | ×1 |