Akira (伊藤明) Ito
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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
35,9%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 3 819; Σ finishers = 10 630. 3 819 / 10 630 × 100 = 35.93%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 541 km
> 100 km7
> 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)
Road26,8%
Trail73,2%
HISTORY
16 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 | 19/7/2015 | 2nd SkyView Ultra-Trail - Yamada Noboru Memorial Cup | 118,00 | ×3 |
| ✓ 3 | 2/3/2013 | 3rd Oedo Night run 111k | 111,00 | ×3 |
| ✓ 4 | 17/9/2023 | 15th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 5 | 17/6/2023 | 1st Okumusashi Long Trail Race 105K | 105,00 | ×3 |
| ✓ 6 | 19/11/2016 | 2nd FunTrails100K Round | 105,00 | ×3 |
| ✓ 7 | 13/4/2019 | 5th Okuizumo Ultra Orochi 100km Tooashi | 102,00 | ×2 |
| ✓ 8 | 16/5/2026 | 11th Trainic World 100 km in Sai-No-Kuni | 100,00 | ×2 |
| ✓ 9 | 26/4/2026 | 2nd Suo-Oshima Ultramarathon | 100,00 | ×2 |
| ✓ 10 | 25/5/2025 | 31th Ebisu-Daikoku 100 km Marathon | 100,00 | ×2 |
| ✓ 11 | 22/9/2024 | 10th SkyViewTrail Memorial Cup | 80,00 | ×2 |
| ✓ 12 | 10/3/2013 | 1st Izu Trail Journey | 72,00 | ×2 |
| ✓ 13 | 7/10/2012 | 20th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 14 | 9/10/2011 | 19th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 15 | 10/10/2010 | 18th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 16 | 30/8/2014 | 1st Shigakogen Extreme Trail | 63,00 | ×1 |