Rie (石橋理恵) Ishibashi
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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
68,6%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 5 664; Σ finishers = 8 259. 5 664 / 8 259 × 100 = 68.58%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 140 km
> 100 km2
> 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)
Road38,3%
Trail61,7%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0
Records
HISTORY
15 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 | ×5 |
| ✓ 2 | 18/5/2024 | 9th Trainic World 100 km in Sai-No-Kuni | 109,20 | ×3 |
| ✓ 3 | 12/4/2025 | 4th Yagurazawa Round Trip Pre-Tournament | 100,00 | ×3 |
| ✓ 4 | 22/4/2018 | 28th Fuji 5 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 5 | 4/6/2023 | 30. Ultramarathon Okumusashi | 78,00 | ×2 |
| ✓ 6 | 9/10/2022 | 30th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 7 | 23/4/2022 | 1st KAI 69k | 69,00 | ×2 |
| ✓ 8 | 16/7/2023 | 14th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×2 |
| ✓ 9 | 23/7/2021 | 12th Nozawa Onsen 4100D Mountain Trail Trio | 65,00 | ×2 |
| ✓ 10 | 20/10/2019 | 8th Noto Peninsula 60 km Ultra Marathon | 60,00 | ×2 |
| ✓ 11 | 21/6/2025 | 1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 | 58,00 | ×1 |
| ✓ 12 | 13/9/2015 | 5th Hakuba Int. Trail Run | 53,00 | ×1 |
| ✓ 13 | 19/1/2020 | 30th Miyako 50 km Ultramarathon | 50,00 | ×1 |
| ✓ 14 | 3/7/2022 | 28th 8-Hour Endurance Race Tokorozawa | 49,00 | ×1 |
| ✓ 15 | 30/6/2018 | 8th Utsukushigahara 45 km Trail Run | 45,00 | ×1 |