Kengo (柳橋賢吾) Yanagibashi
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15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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
15,7%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 1 658; Σ finishers = 10 548. 1 658 / 10 548 × 100 = 15.72%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 072 km
> 100 km1
Longest race108,7 km
2nd Aso Round Trail — 12/5/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road9,3%
Trail90,7%
Records
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 12/5/2018 | 2nd Aso Round Trail | 108,70 | ×3 |
| ✓ 2 | 18/12/2016 | 1st Okinawa 100km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 26/9/2015 | 4th Shizuoka to Yamanashi (STY) | 76,70 | ×2 |
| ✓ 4 | 10/12/2017 | 4th Izu Trail Journey | 71,70 | ×2 |
| ✓ 5 | 12/10/2025 | 33th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 6 | 13/10/2024 | 32th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 7 | 8/10/2017 | 25th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 8 | 27/8/2017 | 4th Tsukuba Renjyo 70 km Road & Trail Run | 70,00 | ×2 |
| ✓ 9 | 21/7/2018 | 6th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×2 |
| ✓ 10 | 23/7/2017 | 5th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×2 |
| ✓ 11 | 24/7/2016 | 4th Kirishima Ebino-kougen Extreme Trail | 67,50 | ×2 |
| ✓ 12 | 21/7/2015 | 3rd Kirishima Ebino-kougen Extreme Trail | 63,00 | ×2 |
| ✓ 13 | 20/7/2014 | 2nd Kirishima Ebino-kougen Extreme Trail | 63,00 | ×2 |
| ✓ 14 | 17/9/2017 | 9th Shinetsu Five Mountains Trail 110km | 52,00 | ×1 |
| ✓ 15 | 28/5/2016 | 2nd Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |