Hayato (西岡速人) Nishioka
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Born : 1955
Cat. M70 Ultrarunner since 2011
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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
Japan48,8%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 2 074; Σ finishers = 4 254. 2 074 / 4 254 × 100 = 48.75%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races533 km
Longest race100,0 km
19th Muraoka 100 km Ultra Marathon — 25/9/2016
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road86,9%
Trail13,1%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 28.09 | 64km | 28th Muraoka 64 km Ultra Marathon |
8:09:41 h | 348 |
| 2022 | ||||
| 29.09 | 45km | 25th Muraoka 45 km Ultra Marathon |
6:12:28 h | 628 |
| 2016 | ||||
| 25.09 | 100km | 19th Muraoka 100 km Ultra Marathon |
13:29:44 h | 304 |
| 2015 | ||||
| 18.10 | 100km | 21st River Shimanto 100km |
11:42:51 h | 380 |
| 2014 | ||||
| 03.05 | 70km | 22. Mukogawa Yurikamome Ultra Marathon |
7:56:55 h | 327 |
| 2013 | ||||
| 29.09 | 66km | 16th Muraoka 66 km Ultra Marathon |
7:51:47 h | 52 |
| 2011 | ||||
| 25.09 | 88km | 14th Muraoka 88 km Ultra Marathon |
11:19:11 h | 42 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/9/2016 | 19th Muraoka 100 km Ultra Marathon | 100,00 | ×4 |
| ✓ 2 | 18/10/2015 | 21st River Shimanto 100km | 100,00 | ×4 |
| ✓ 3 | 25/9/2011 | 14th Muraoka 88 km Ultra Marathon | 88,00 | ×4 |
| ✓ 4 | 3/5/2014 | 22. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×3 |
| ✓ 5 | 29/9/2013 | 16th Muraoka 66 km Ultra Marathon | 66,00 | ×3 |
| ✓ 6 | 28/9/2025 | 28th Muraoka 64 km Ultra Marathon | 64,00 | ×2 |
| ✓ 7 | 29/9/2022 | 25th Muraoka 45 km Ultra Marathon | 45,00 | ×2 |