Yohei (小山陽平) Koyama
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Born : 1989
Cat. M35 Ultrarunner since 2014
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
34
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
2
Countries visited ?
Hong KongJapan
Hong KongJapan82,4%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 6 813; Σ finishers = 8 269. 6 813 / 8 269 × 100 = 82.39%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed20
Km — ultra races1 472 km
> 100 km3
> 160 km3
> 200 km1
Longest race250,0 km
6th Hakusan Geotrail 250km — 25/8/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road19,7%
Trail63,3%
Stage17,0%
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 15.11 | 50km | 11th FunTrails50K Round |
11:42:40 h | 567 |
| 11.05 | 51km | 6th FunTrails Round Minano |
10:23:40 h | 399 |
| 15.03 | 90km | 15th Little Edo 90k |
13:35:55 h | 63 |
| 2024 | ||||
| 16.03 | 100km | 8th Minamiboso 100km |
14:13:50 h | 121 |
| 2023 | ||||
| 17.12 | 70km | 1st Coast to Coast Boso hanto |
11:46:46 h | 306 |
| 2022 | ||||
| 02.07 | 50km | 12th Utsukushigahara 50 km Trail Run |
9:48:47 h | 139 |
| 2020 | ||||
| 04.01 | 162km | 5th Ultra-Trail Tai Mo Shan (UTMT) 100 Mile |
39:13:53 h | 57 |
| 2019 | ||||
| 25.08 | 250km/6stages | 6th Hakusan Geotrail 250km |
41:04:47 h | 8 |
| 2018 | ||||
| 14.07 | 65km | 9th Nozawa Onsen 4100D Mountain Trail |
14:33:09 h | 167 |
| 2017 | ||||
| 30.12 | 162km | 3rd Ultra-Trail Tai Mo Shan (UTMT) 100 Mile |
40:00:00 h | 125 |
| 10.12 | 71.7km | 4th Izu Trail Journey |
13:11:49 h | 905 |
| 2016 | ||||
| 09.10 | 100km | 11th Echigo Kubikino 100km Ultramarathon |
13:20:53 h | 1204 |
| 22.05 | 100km | 22nd Yatsugatake Nobeyama 100 km |
13:58:44 h | 1425 |
| 2015 | ||||
| 17.05 | 100km | 21st Yatsugatake Nobeyama 100 km |
13:49:36 h | 1256 |
| 2014 | ||||
| 05.10 | 50km | 8th Madarao Forest Trails 50km |
6:08:17 h | 86 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/8/2019 | 6th Hakusan Geotrail 250km | 250,00 | ×7 |
| ✓ 2 | 4/1/2020 | 5th Ultra-Trail Tai Mo Shan (UTMT) 100 Mile | 162,00 | ×4 |
| ✓ 3 | 30/12/2017 | 3rd Ultra-Trail Tai Mo Shan (UTMT) 100 Mile | 162,00 | ×4 |
| ✓ 4 | 16/3/2024 | 8th Minamiboso 100km | 100,00 | ×2 |
| ✓ 5 | 9/10/2016 | 11th Echigo Kubikino 100km Ultramarathon | 100,00 | ×2 |
| ✓ 6 | 22/5/2016 | 22nd Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 7 | 17/5/2015 | 21st Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 8 | 15/3/2025 | 15th Little Edo 90k | 90,00 | ×2 |
| ✓ 9 | 10/12/2017 | 4th Izu Trail Journey | 71,70 | ×2 |
| ✓ 10 | 17/12/2023 | 1st Coast to Coast Boso hanto | 70,00 | ×2 |
| ✓ 11 | 14/7/2018 | 9th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×1 |
| ✓ 12 | 11/5/2025 | 6th FunTrails Round Minano | 51,00 | ×1 |
| ✓ 13 | 15/11/2025 | 11th FunTrails50K Round | 50,00 | ×1 |
| ✓ 14 | 2/7/2022 | 12th Utsukushigahara 50 km Trail Run | 50,00 | ×1 |
| ✓ 15 | 5/10/2014 | 8th Madarao Forest Trails 50km | 50,00 | ×1 |