Natsuko (一宮なつ子) Ichimiya
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Ultrarunner since 2013
2
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
11
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
Japan14,9%
Rank quotient ?This runner's calculation uses 2 eligible race(s): Σ(rank − 1) = 70; Σ finishers = 469. 70 / 469 × 100 = 14.93%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed2
Km — ultra races126 km
Longest race70,0 km
5th 70 km Ultra Maranic Osaka — 21/4/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0
Records
No record for a classic ultra format
HISTORY
2 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2014 | ||||
| 30.03 | 56km | 10th Mt. Rocco Cannonball Run - 56 km Speed |
6:40:25 h | 25 |
| 2013 | ||||
| 21.04 | 70km | 5th 70 km Ultra Maranic Osaka |
7:56:31 h | 47 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/4/2013 | 5th 70 km Ultra Maranic Osaka | 70,00 | ×6 |
| ✓ 2 | 30/3/2014 | 10th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×5 |