Junichi (石橋純一) Ishibashi
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Born : 1970
Cat. M55 Ultrarunner since 2006
14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
34
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
Japan22,9%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 1 160; Σ finishers = 5 073. 1 160 / 5 073 × 100 = 22.87%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 419 km
> 100 km5
> 160 km1
Longest race173,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road85,4%
Trail14,6%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
14 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 4/5/2019 | 13th Nagasaki Tachibana Gulf Coast Super Maranic 173 | 173,00 | ×5 |
| ✓ 2 | 3/5/2006 | 18. Yamaguchi 100 Hagi-O-Kan Maranic 140 km | 140,00 | ×4 |
| ✓ 3 | 4/5/2016 | 10th Nagasaki Tachibana Gulf Coast Super Maranic 173 | 129,00 | ×3 |
| ✓ 4 | 4/11/2023 | 17th Nagasaki Tachibana Gulf Coast Super Maranic 103 | 103,00 | ×3 |
| ✓ 5 | 2/11/2019 | Tachibana Bay Coast 103 Ultra Marathon | 103,00 | ×3 |
| ✓ 6 | 13/1/2019 | 4th Yakushima Ultramarathon | 100,00 | ×2 |
| ✓ 7 | 21/10/2017 | 2nd Iki 100 km Ultra Marathon | 100,00 | ×2 |
| ✓ 8 | 7/6/2014 | 24th Aso Caldera Super Marathon 100 km | 100,00 | ×2 |
| ✓ 9 | 17/9/2006 | 6th Tango 100 km Ultramarathon | 100,00 | ×2 |
| ✓ 10 | 9/6/2019 | 3rd JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 11 | 4/5/2017 | 11th Nagasaki Tachibana Gulf Coast Super Maranic 80 | 80,00 | ×2 |
| ✓ 12 | 8/10/2006 | 14th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 13 | 21/7/2018 | 6th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×1 |
| ✓ 14 | 23/7/2017 | 5th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×1 |