Takuya (山野井卓也) Yamanoi

Born : 1984 Cat. M40 Ultrarunner since 2009

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 18 eligible race(s): Σ(rank − 1) = 875; Σ finishers = 3 797. 875 / 3 797 × 100 = 23.04%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed18

Km — ultra races1 714 km

> 100 km7

> 24h3

Longest race140,4 km

14. Green Charity Marathon Tokyo - Hard Run 24H — 12/9/2015

Km per year (ultra races)

2022

2023

2024

248

2025

2026

Race types (share of distance)

Road84,7%

Trail4,2%

Ult.Walk11,1%

Wins & podiums (ultra)

🏆 Win4

🏆 Win M4

🏅 Top 36

🏅 Top 3 M6

Longest winning streak2

Current streak0

Records

100 km9h14'57 6 h73,95 km 12 h112,59 km 24 h140,40 km

HISTORY

18 race(s)

Date		Race	Perf.	Rk
2026
17.01	5h	13th Iikoto Challenge - 5h	52.936 km	10
2025
21.06	24h	20th Green Charity Marathon Tokyo - Hard Run 24H	139.860 km	27
08.03	12h	16th Jingu Gaien 12 Hour Ultramarathon	108.614 km	2 🥈
2019
01.06	6h	18. Green Charity Marathon Tokyo - Standard Run 6H	46.500 km	14
2018
10.11	12h	13th Jingu Gaien 12 Hour Challenge	83.447 km	12
2016
11.01	6h	6th Iikoto Challenge - 6h	59.800 km	21
2015
19.12	24h	10th Jingu Gaien 24 Hour Challenge	133.780 km	94
12.09	24h	14. Green Charity Marathon Tokyo - Hard Run 24H	140.400 km	29
06.06	100km	3rd Tokyo Shibamata 100 km	9:14:57 h	50
2014
08.11	12h	9th Jingu Gaien Ultramarathon 12 Hour	112.588 km	2 🥈
04.10	12h	3rd Tokorozawa Road to Morning - 12h walk	100.000 km	1 🏆
21.06	12h	13. Tokyo Challenge 12 hours	102.900 km	7
2013
05.10	12h	2nd Tokorozawa Road to Morning - 12h walk	90.000 km	1 🏆
2012
06.10	12h	1st Tokorozawa Road to Morning - 12h	90.900 km	1 🏆
16.06	12h	11. Tokyo Challenge 12 hours	94.640 km	22
2011
10.12	6h	3rd Iikoto Challenge - 6h	73.950 km	1 🏆
2009
11.10	71.5km	17th Hasetsune Cup - Japan Mountain Endurance Race	14:46:54 h	572
26.04	112km	19th Fuji 5 Lakes 112 km Challenge	11:27:50 h	27

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Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	12/9/2015	14. Green Charity Marathon Tokyo - Hard Run 24H	140,40	×3
✓ 2	21/6/2025	20th Green Charity Marathon Tokyo - Hard Run 24H	139,86	×3
✓ 3	19/12/2015	10th Jingu Gaien 24 Hour Challenge	133,78	×3
✓ 4	8/11/2014	9th Jingu Gaien Ultramarathon 12 Hour	112,59	×3
✓ 5	26/4/2009	19th Fuji 5 Lakes 112 km Challenge	112,00	×3
✓ 6	8/3/2025	16th Jingu Gaien 12 Hour Ultramarathon	108,61	×3
✓ 7	21/6/2014	13. Tokyo Challenge 12 hours	102,90	×2
✓ 8	6/6/2015	3rd Tokyo Shibamata 100 km	100,00	×2
✓ 9	4/10/2014	3rd Tokorozawa Road to Morning - 12h walk	100,00	×2
✓ 10	16/6/2012	11. Tokyo Challenge 12 hours	94,64	×2
✓ 11	6/10/2012	1st Tokorozawa Road to Morning - 12h	90,90	×2
✓ 12	5/10/2013	2nd Tokorozawa Road to Morning - 12h walk	90,00	×2
✓ 13	10/11/2018	13th Jingu Gaien 12 Hour Challenge	83,45	×2
✓ 14	10/12/2011	3rd Iikoto Challenge - 6h	73,95	×2
✓ 15	11/10/2009	17th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 16	11/1/2016	6th Iikoto Challenge - 6h	59,80	×1
✓ 17	17/1/2026	13th Iikoto Challenge - 5h	52,94	×1
✓ 18	1/6/2019	18. Green Charity Marathon Tokyo - Standard Run 6H	46,50	×1