Kazuhide (山本和秀) Yamamoto
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Born : 1983
Cat. M40 Ultrarunner since 2014
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
16
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
Japan20,6%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 700; Σ finishers = 3 400. 700 / 3 400 × 100 = 20.59%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races298 km
Longest race100,0 km
13th Iwate Ginga 100km Marathon Challenge — 11/6/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road83,9%
Trail16,1%
Records
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2017 | ||||
| 11.06 | 100km | 13th Iwate Ginga 100km Marathon Challenge |
12:21:56 h | 522 |
| 2016 | ||||
| 11.09 | 50km | 4th 50 km Ultramarathon Hakusan-Shirakawago |
5:36:41 h | 98 |
| 2015 | ||||
| 06.06 | 100km | 3rd Tokyo Shibamata 100 km |
9:26:42 h | 73 |
| 2014 | ||||
| 31.08 | 48km | 1st Tsukuba Renjyo 48 km Road & Trail Run |
5:16:12 h | 11 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/6/2017 | 13th Iwate Ginga 100km Marathon Challenge | 100,00 | ×6 |
| ✓ 2 | 6/6/2015 | 3rd Tokyo Shibamata 100 km | 100,00 | ×6 |
| ✓ 3 | 11/9/2016 | 4th 50 km Ultramarathon Hakusan-Shirakawago | 50,00 | ×3 |
| ✓ 4 | 31/8/2014 | 1st Tsukuba Renjyo 48 km Road & Trail Run | 48,00 | ×3 |