Naoyuki (原田直之) Harada
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Born : 1980
Cat. M45 Ultrarunner since 2015
19
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
Japan36,1%
Rank quotient ?This runner's calculation uses 19 eligible race(s): Σ(rank − 1) = 2 006; Σ finishers = 5 561. 2 006 / 5 561 × 100 = 36.07%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed19
Km — ultra races1 563 km
> 100 km5
> 160 km1
Longest race167,0 km
8th Ultra-Trail Mt. Fuji (UTMF) — 21/4/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road20,7%
Trail79,3%
Wins & podiums (ultra)
🏆 Win2
🏆 Win M2
🏅 Top 33
🏅 Top 3 M3
Longest winning streak2
Current streak0
Records
HISTORY
19 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/4/2023 | 8th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×4 |
| ✓ 2 | 11/5/2019 | 3rd Aso Round Trail | 121,00 | ×3 |
| ✓ 3 | 21/3/2025 | 1st Teizan nameruna FKP | 120,00 | ×3 |
| ✓ 4 | 25/3/2017 | 16th Mt. Rocco Cannonball Run - 112 km Power | 112,00 | ×3 |
| ✓ 5 | 26/3/2016 | 14th Mt. Rocco Cannonball Run - 112 km Power | 112,00 | ×3 |
| ✓ 6 | 1/10/2017 | 1st Yasaka Ultra Marathon in Hamada - 100 km | 100,00 | ×2 |
| ✓ 7 | 23/10/2022 | 7th Osorakan-Trail 82 km | 82,00 | ×2 |
| ✓ 8 | 24/10/2021 | 6th Osorakan-Trail 82 km | 82,00 | ×2 |
| ✓ 9 | 27/10/2019 | 10th OSJ Hyonosen Mountains Trail Race | 73,00 | ×2 |
| ✓ 10 | 18/10/2015 | 6th OSJ Hyonosen Mountains Trail Race | 73,00 | ×2 |
| ✓ 11 | 14/12/2025 | 12th Izu Trail Journey | 70,00 | ×2 |
| ✓ 12 | 19/5/2019 | 4th Osorakan-Trail | 65,00 | ×1 |
| ✓ 13 | 27/5/2018 | 3rd Osorakan-Trail | 65,00 | ×1 |
| ✓ 14 | 28/5/2017 | 2nd Osorakan-Trail | 65,00 | ×1 |
| ✓ 15 | 5/6/2022 | 4th Nagi Peaks Tough Trail Challenge | 57,00 | ×1 |
| ✓ 16 | 2/11/2025 | 7th Saioto Colors | 52,00 | ×1 |
| ✓ 17 | 3/11/2024 | 6th Saioto Colors | 52,00 | ×1 |
| ✓ 18 | 13/4/2025 | 7th Onigajo Peaks Trail | 50,00 | ×1 |
| ✓ 19 | 30/7/2023 | 8th Osorakan-Trail 45 km | 45,00 | ×1 |