Kazuhiro (山越一弘) Yamakoshi

Born : 1963 Cat. M60 Ultrarunner since 2013

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

Japan

23,0%

Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 2 043; Σ finishers = 8 885. 2 043 / 8 885 × 100 = 22.99%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed16

Km — ultra races1 414 km

> 100 km5

> 160 km1

Longest race160,9 km

10th Shinetsu Five Mountains Trail 100 mile — 15/9/2018

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road7,1%

Trail92,9%

Records

50 km7h37'59 100 km9h27'14 50 mi11h15'34 100 mi31h49'30

HISTORY

16 race(s)

Date		Race	Perf.	Rk
2018
17.11	106km	4th FunTrails100K Round	27:05:01 h	232
15.09	100mi	10th Shinetsu Five Mountains Trail 100 mile	31:49:30 h	256
12.05	108.7km	2nd Aso Round Trail	22:08:08 h	91
22.04	100km	28th Fuji 5 Lakes 100 km Challenge	9:27:14 h	50
2017
23.09	129km	4th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup	29:00:14 h	218
25.06	72.7km	4. Spatrail - Shima to Kusatsu	9:07:48 h	45
27.05	50km	9th OSJ Okukuji Trail 50k	10:21:36 h	58
23.04	70km	3rd Okumikawa Power Trail	10:34:37 h	88
2016
26.06	72.7km	3. Spatrail - Shima to Kusatsu	9:23:06 h	57
28.05	50km	2nd Mt. Hiei Int. 50 km Trail Run	7:37:59 h	105
2015
19.07	118km	2nd SkyView Ultra-Trail - Yamada Noboru Memorial Cup	26:47:46 h	109
28.06	72.7km	2. Spatrail - Shima to Kusatsu	9:48:03 h	76
2014
30.11	50km	Kumano Old Trails	8:02:19 h	40
15.06	81.4km	1. Spatrail - Shima to Kusatsu	11:15:34 h	85
2013
07.09	100km	2nd OSJ Yatsugatake Super Trail 100 km race	15:44:48 h	99
10.03	72km	1st Izu Trail Journey	11:13:36 h	450

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	15/9/2018	10th Shinetsu Five Mountains Trail 100 mile	160,93	×4
✓ 2	23/9/2017	4th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup	129,00	×3
✓ 3	19/7/2015	2nd SkyView Ultra-Trail - Yamada Noboru Memorial Cup	118,00	×3
✓ 4	12/5/2018	2nd Aso Round Trail	108,70	×3
✓ 5	17/11/2018	4th FunTrails100K Round	106,00	×3
✓ 6	22/4/2018	28th Fuji 5 Lakes 100 km Challenge	100,00	×2
✓ 7	7/9/2013	2nd OSJ Yatsugatake Super Trail 100 km race	100,00	×2
✓ 8	15/6/2014	1. Spatrail - Shima to Kusatsu	81,40	×2
✓ 9	25/6/2017	4. Spatrail - Shima to Kusatsu	72,70	×2
✓ 10	26/6/2016	3. Spatrail - Shima to Kusatsu	72,70	×2
✓ 11	28/6/2015	2. Spatrail - Shima to Kusatsu	72,70	×2
✓ 12	10/3/2013	1st Izu Trail Journey	72,00	×2
✓ 13	23/4/2017	3rd Okumikawa Power Trail	70,00	×2
✓ 14	27/5/2017	9th OSJ Okukuji Trail 50k	50,00	×1
✓ 15	28/5/2016	2nd Mt. Hiei Int. 50 km Trail Run	50,00	×1
✓ 16	30/11/2014	Kumano Old Trails	50,00	×1