Akihito (荒川聡仁) Arakawa
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Born : 1958
Cat. M65 Ultrarunner since 2014
13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
32
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
Japan51,7%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 2 872; Σ finishers = 5 555. 2 872 / 5 555 × 100 = 51.70%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 185 km
> 100 km4
Longest race129,0 km
2nd Utsukushima Fukushima Journey Run 129K — 14/9/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road90,1%
Trail9,9%
Records
HISTORY
13 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/9/2019 | 2nd Utsukushima Fukushima Journey Run 129K | 129,00 | ×4 |
| ✓ 2 | 20/9/2020 | 3rd Utsukushima Fukushima Journey Run 127K | 127,00 | ×3 |
| ✓ 3 | 16/10/2021 | 1st Tone River Run Up Journey Run Upstream | 120,00 | ×3 |
| ✓ 4 | 17/7/2021 | 1st Nakasendo Ultra | 117,00 | ×3 |
| ✓ 5 | 12/6/2022 | 16th Iwate Ginga 100km Marathon Challenge | 100,00 | ×3 |
| ✓ 6 | 9/6/2019 | 15th Iwate Ginga 100km Marathon Challenge | 100,00 | ×3 |
| ✓ 7 | 11/6/2017 | 13th Iwate Ginga 100km Marathon Challenge | 100,00 | ×3 |
| ✓ 8 | 12/6/2016 | 12th Iwate Ginga 100km Marathon Challenge | 100,00 | ×3 |
| ✓ 9 | 19/4/2015 | 25th Fuji 5 Lakes 71 km Challenge | 71,00 | ×2 |
| ✓ 10 | 10/4/2021 | 16th Toda Saiko 70 km | 70,00 | ×2 |
| ✓ 11 | 19/5/2018 | 1st Chiba Ultra Marathon - 51km | 51,00 | ×1 |
| ✓ 12 | 11/5/2019 | 1st Izu Oshima Geopark Ultra Marathon | 50,00 | ×1 |
| ✓ 13 | 8/6/2014 | 10th Iwate Ginga 50km Marathon Challenge | 50,00 | ×1 |