Hirochika (伊藤啓恭) Ito
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Born : 1968
Cat. M55 Ultrarunner since 2003
18
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
Japan39,4%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 3 364; Σ finishers = 8 544. 3 364 / 8 544 × 100 = 39.37%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 334 km
> 100 km2
> 160 km1
> 24h2
Longest race160,4 km
2nd Akiruno 24 Hour Race Japan Cup — 12/6/2004
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road44,6%
Trail55,4%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 12/6/2004 | 2nd Akiruno 24 Hour Race Japan Cup | 160,40 | ×4 |
| ✓ 2 | 30/8/2003 | 2nd Refreshing - 24h | 135,00 | ×4 |
| ✓ 3 | 6/6/2015 | 3rd Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 4 | 1/6/2013 | 1st Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 5 | 22/5/2005 | 11th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 6 | 17/10/2004 | 10th River Shimanto 100km | 100,00 | ×3 |
| ✓ 7 | 25/6/2017 | 4. Spatrail - Shima to Kusatsu | 72,70 | ×2 |
| ✓ 8 | 25/10/2003 | 11th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 9 | 1/12/2024 | 10th Kumano Old Trails | 52,00 | ×1 |
| ✓ 10 | 22/10/2023 | 1st Great Ryozen Mountain | 51,00 | ×1 |
| ✓ 11 | 21/5/2022 | 8th Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |
| ✓ 12 | 8/9/2018 | 6th Trainic world Soto-Chichibu Trail Run 50km | 49,80 | ×1 |
| ✓ 13 | 8/5/2016 | 4th Trainic world Chichibu Trail Run 50km | 49,80 | ×1 |
| ✓ 14 | 3/9/2017 | 6th Trainic world Ogose-Tokigawa Trail Run 50km | 49,60 | ×1 |
| ✓ 15 | 28/4/2019 | 12th Ishioka Trail Run | 49,00 | ×1 |
| ✓ 16 | 29/4/2016 | 9th Ishioka Trail Run | 49,00 | ×1 |
| ✓ 17 | 4/11/2023 | 5th Ninja Trail Run | 48,00 | ×1 |
| ✓ 18 | 29/4/2018 | 11th Ishioka Trail Run | 46,00 | ×1 |