Seiji (原田星児) Harada
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Ultrarunner since 2007
2
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
18
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
Japan41,2%
Rank quotient ?This runner's calculation uses 2 eligible race(s): Σ(rank − 1) = 35; Σ finishers = 85. 35 / 85 × 100 = 41.18%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed2
Km — ultra races329 km
> 100 km2
> 160 km2
> 24h2
Longest race166,6 km
3rd Jingu Gaien 24 Hour Challenge — 5/7/2008
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
2 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2008 | ||||
| 05.07 | 24h | 3rd Jingu Gaien 24 Hour Challenge |
166.571 km | 21 |
| 2007 | ||||
| 02.06 | 24h | 5th Akiruno 24 Hour Race Japan Cup |
162.329 km | 16 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 5/7/2008 | 3rd Jingu Gaien 24 Hour Challenge | 166,57 | ×9 |
| ✓ 2 | 2/6/2007 | 5th Akiruno 24 Hour Race Japan Cup | 162,33 | ×9 |