Hiromi (石井裕美) Ishii
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Born : 1975
Cat. W50 Ultrarunner since 2016
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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
Japan46,5%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 4 675; Σ finishers = 10 052. 4 675 / 10 052 × 100 = 46.51%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 720 km
> 100 km4
> 160 km2
> 200 km1
> 24h1
> 48h1
Longest race251,0 km
20th River Road Foot Race 251 km — 3/5/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road49,5%
Trail39,6%
Elim.10,9%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/5/2025 | 20th River Road Foot Race 251 km | 251,00 | ×6 |
| ✓ 2 | 1/11/2024 | 5th Last Samurai Standing Backyard Ultra - Fukushima | 187,77 | ×5 |
| ✓ 3 | 15/9/2024 | 16th Shinetsu Five Mountains Trail 110km | 109,00 | ×3 |
| ✓ 4 | 10/6/2023 | 3rd Okushinano 100 | 100,80 | ×2 |
| ✓ 5 | 21/5/2023 | 29th Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 6 | 9/10/2022 | 14th Echigo Kubikino 100km Ultramarathon | 100,00 | ×2 |
| ✓ 7 | 22/5/2022 | 28th Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 8 | 19/1/2020 | 30th Miyako 100 km Ultramarathon | 100,00 | ×2 |
| ✓ 9 | 19/5/2019 | 25th Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 10 | 9/10/2016 | 11th Echigo Kubikino 100km Ultramarathon | 100,00 | ×2 |
| ✓ 11 | 22/4/2023 | 2nd KAI 69k | 69,00 | ×1 |
| ✓ 12 | 14/7/2024 | 15th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×1 |
| ✓ 13 | 17/7/2022 | 13th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×1 |
| ✓ 14 | 23/7/2021 | 12th Nozawa Onsen 4100D Mountain Trail Pair | 65,00 | ×1 |
| ✓ 15 | 16/6/2019 | 5th Echigo Country Trail | 53,00 | ×1 |
| ✓ 16 | 17/6/2018 | 4th Echigo Country Trail | 53,00 | ×1 |
| ✓ 17 | 18/6/2017 | 3rd Echigo Country Trail | 53,00 | ×1 |
| ✓ 18 | 15/6/2024 | 3rd KTF Trail running race - Rockin Bear | 48,00 | ×1 |