Teruaki (石原光朗) Ishihara
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Born : 1972
Cat. M50 Ultrarunner since 2016
16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
41
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
Japan28,5%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 644; Σ finishers = 2 256. 644 / 2 256 × 100 = 28.55%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races2 028 km
> 100 km9
> 160 km5
> 200 km3
Longest race320,0 km
18th Nagasaki Tachibana Gulf Coast Super Maranic 320 — 22/11/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road68,9%
Trail31,1%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
16 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 22/11/2024 | 18th Nagasaki Tachibana Gulf Coast Super Maranic 320 | 320,00 | ×7 |
| ✓ 2 | 20/11/2022 | 16th Nagasaki Tachibana Gulf Coast Super Maranic 276 | 276,00 | ×6 |
| ✓ 3 | 4/5/2026 | 20th Nagasaki Tachibana Gulf Coast Super Maranic 217 | 217,00 | ×5 |
| ✓ 4 | 4/5/2018 | 12th Nagasaki Tachibana Gulf Coast Super Maranic 173 | 173,00 | ×4 |
| ✓ 5 | 15/11/2025 | 4th Kumagawa Revival Trail | 167,00 | ×4 |
| ✓ 6 | 3/11/2017 | Tachibana Bay Coast 105 Ultra Marathon | 105,00 | ×2 |
| ✓ 7 | 2/11/2019 | Tachibana Bay Coast 103 Ultra Marathon | 103,00 | ×2 |
| ✓ 8 | 4/11/2016 | Tachibana Bay Coast 100 Ultra Marathon | 103,00 | ×2 |
| ✓ 9 | 5/3/2022 | 1st Kumagawa Revival Trail | 101,00 | ×2 |
| ✓ 10 | 5/10/2025 | 6th Mine Akiyoshidai Geopark Ultra Marathon | 100,00 | ×2 |
| ✓ 11 | 11/8/2022 | 1st Yacchiro Dragon Trail | 68,40 | ×1 |
| ✓ 12 | 23/7/2023 | 11th Kirishima Ebino-kougen Extreme Trail | 66,00 | ×1 |
| ✓ 13 | 1/9/2019 | 3rd Mizukami Mountain Party | 64,00 | ×1 |
| ✓ 14 | 14/3/2021 | 4th Mizukami Mountain Party | 62,00 | ×1 |
| ✓ 15 | 7/6/2025 | 8th Mizukami Mountain Party | 53,00 | ×1 |
| ✓ 16 | 11/8/2024 | 3rd Yacchiro Dragon Trail | 50,00 | ×1 |