Tsutomu (柿間努) Kakima
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16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
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
19,5%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 983; Σ finishers = 5 035. 983 / 5 035 × 100 = 19.52%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 475 km
> 100 km4
> 160 km4
Longest race160,9 km
11th Trainic World 100 Mile in Sai-No-Kuni — 16/5/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road6,8%
Trail93,2%
HISTORY
16 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/5/2026 | 11th Trainic World 100 Mile in Sai-No-Kuni | 160,93 | ×4 |
| ✓ 2 | 20/5/2023 | 8th Trainic World 100 Mile in Sai-No-Kuni | 160,93 | ×4 |
| ✓ 3 | 11/5/2019 | 4th Trainic World 100 Mile in Sai-No-Kuni | 160,93 | ×4 |
| ✓ 4 | 19/5/2018 | 3rd Trainic World 100 Mile in Sai-No-Kuni | 160,93 | ×4 |
| ✓ 5 | 2/7/2017 | 1st Nikko 100km Ultramarathon | 100,00 | ×2 |
| ✓ 6 | 13/11/2016 | 2nd Gasando Trail running race | 75,00 | ×2 |
| ✓ 7 | 7/10/2023 | 8th Gasando Trail running race | 73,00 | ×2 |
| ✓ 8 | 15/10/2022 | 7th Gasando Trail running race | 73,00 | ×2 |
| ✓ 9 | 6/10/2019 | 5th Gasando Trail running race | 73,00 | ×2 |
| ✓ 10 | 14/10/2018 | 4th Gasando Trail running race | 73,00 | ×2 |
| ✓ 11 | 17/5/2015 | 1st Gasando Trail running race | 73,00 | ×2 |
| ✓ 12 | 7/4/2019 | 5th Okumikawa Power Trail | 70,00 | ×2 |
| ✓ 13 | 22/4/2018 | 4th Okumikawa Power Trail | 70,00 | ×2 |
| ✓ 14 | 5/10/2025 | 13th Trainic world Ogose-Tokigawa Trail Run 50km | 51,40 | ×1 |
| ✓ 15 | 22/10/2017 | 3rd Gasando Trail running race | 50,00 | ×1 |
| ✓ 16 | 28/5/2016 | 2nd Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |