Hideyuki (成瀬英之) Naruse
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Born : 1966
Cat. M60 Ultrarunner since 2013
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
Japan5,8%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 697; Σ finishers = 12 018. 697 / 12 018 × 100 = 5.80%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 325 km
> 100 km1
Longest race110,0 km
6th Shinetsu Five Mountains Trail 110km — 14/9/2014
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road15,1%
Trail84,9%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/9/2014 | 6th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 2 | 10/6/2018 | 7th Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 15/7/2017 | 10th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 4 | 11/6/2017 | 6th Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 16/7/2016 | 9th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 6 | 26/9/2015 | 4th Shizuoka to Yamanashi (STY) | 76,70 | ×2 |
| ✓ 7 | 13/11/2016 | 2nd Gasando Trail running race | 75,00 | ×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 | 15/3/2015 | 2nd Izu Trail Journey | 72,00 | ×2 |
| ✓ 13 | 15/9/2013 | 3rd Hakuba Int. Trail Run | 53,00 | ×1 |
| ✓ 14 | 17/6/2023 | 2nd KTF Trail running race - Rockin Bear | 50,00 | ×1 |
| ✓ 15 | 28/5/2016 | 2nd Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |
| ✓ 16 | 30/5/2015 | 1st Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |
| ✓ 17 | 14/6/2025 | 4th KTF Trail running race - Rockin Bear | 48,00 | ×1 |
| ✓ 18 | 15/6/2024 | 3rd KTF Trail running race - Rockin Bear | 48,00 | ×1 |