Kouichi (山本幸一) Yamamoto
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Born : 1965
Cat. M60 Ultrarunner since 2003
14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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
Japan18,0%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 1 841; Σ finishers = 10 251. 1 841 / 10 251 × 100 = 17.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 117 km
> 100 km1
Longest race112,0 km
22nd Fuji 5 Lakes 112 km Challenge — 22/4/2012
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road62,0%
Trail38,0%
Records
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 03.05 | 70km | 34. Mukogawa Yurikamome Ultra Marathon |
7:05:47 h | 112 |
| 2025 | ||||
| 03.05 | 70km | 33. Mukogawa Yurikamome Ultra Marathon |
7:09:34 h | 120 |
| 2024 | ||||
| 03.05 | 70km | 32. Mukogawa Yurikamome Ultra Marathon |
7:13:59 h | 111 |
| 2017 | ||||
| 25.06 | 100km | 32. Lake Saroma 100 km Ultramarathon |
9:39:41 h | 273 |
| 2016 | ||||
| 16.10 | 100km | 22nd River Shimanto 100km |
9:42:36 h | 113 |
| 22.05 | 77km | 21th Saba Highway Ultramarathon |
8:38:21 h | 47 |
| 2015 | ||||
| 06.06 | 50km | 25th Aso Caldera Super Marathon 50 km |
5:33:36 h | 105 |
| 2014 | ||||
| 18.05 | 77km | Saba Highway Ultramarathon |
8:15:52 h | 28 |
| 2013 | ||||
| 19.05 | 76km | Saba Highway Ultramarathon |
7:49:57 h | 16 |
| 10.03 | 72km | 1st Izu Trail Journey |
9:57:31 h | 196 |
| 2012 | ||||
| 21.10 | 100km | 1st Noto Peninsula 100 km Ultra Marathon |
9:28:20 h | 11 |
| 22.04 | 112km | 22nd Fuji 5 Lakes 112 km Challenge |
11:36:15 h | 78 |
| 2004 | ||||
| 10.10 | 71.5km | 12th Hasetsune Cup - Japan Mountain Endurance Race |
15:23:45 h | 189 |
| 2003 | ||||
| 25.10 | 71.5km | 11th Hasetsune Cup - Japan Mountain Endurance Race |
17:41:47 h | 456 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 22/4/2012 | 22nd Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 2 | 25/6/2017 | 32. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 16/10/2016 | 22nd River Shimanto 100km | 100,00 | ×3 |
| ✓ 4 | 21/10/2012 | 1st Noto Peninsula 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 5 | 22/5/2016 | 21th Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 6 | 18/5/2014 | Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 7 | 19/5/2013 | Saba Highway Ultramarathon | 76,00 | ×2 |
| ✓ 8 | 10/3/2013 | 1st Izu Trail Journey | 72,00 | ×2 |
| ✓ 9 | 10/10/2004 | 12th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 10 | 25/10/2003 | 11th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 11 | 3/5/2026 | 34. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 12 | 3/5/2025 | 33. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 13 | 3/5/2024 | 32. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 14 | 6/6/2015 | 25th Aso Caldera Super Marathon 50 km | 50,00 | ×1 |