Emiko (小林恵美子) Kobayashi

Born : 1967 Cat. W55 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 ?

Germany

Japan

South Korea

Taiwan

34,7%

Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 2 179; Σ finishers = 6 275. 2 179 / 6 275 × 100 = 34.73%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed17

Km — ultra races2 345 km

> 100 km9

> 160 km6

> 200 km5

> 24h2

Longest race233,0 km

6th Little Edo Oedo 230k — 5/3/2016

Km per year (ultra races)

2022

2023

2024

2025

109

2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F1

🏅 Top 30

🏅 Top 3 F3

Longest winning streak0

Current streak0

Records

100 km10h53'23 100 mi23h06'32 24 h112,20 km

HISTORY

17 race(s) · 2 split(s) nested

Date		Race	Perf.	Rk
2026
07.02	24h	15th Taipei 24hr Ultra Marathon	108.962 km	62
07.02	12h	15th Taipei 24hr Ultra Marathon - 12h Split	65.776 km	75
07.02	100km	15th Taipei 24hr Ultra Marathon - 100km Split	20:08:18 h	68
2020
22.02	115km	10th Oedo Night run 115k	17:39:29 h	64
2019
03.08	24h	19th 24-hour relay & solo marathon Kobe	112.200 km	67
09.03	100km	18th Jeju City 100 km	14:00:07 h	50
23.02	204km	9th Little Edo Oedo 200k	32:22:29 h	113
13.01	100km	4th Yakushima Ultramarathon	13:59:13 h	75
2018
03.03	204km	8th Little Edo Oedo 200k	29:58:25 h	54
2017
12.08	100mi	6. Mauerweglauf 100 Meilen Berlin	23:06:32 h	131
23.04	100km	9th 100 km Ultra Maranic Osaka	12:06:24 h	143
04.03	204km	7th Little Edo Oedo 200k	30:08:55 h	69
08.01	100km	2nd Yakushima Ultramarathon	12:20:00 h	13
2016
05.03	233km	6th Little Edo Oedo 230k	34:24:48 h	17
17.01	100km	26th Miyako 100 km Ultramarathon	12:13:13 h	151
2015
20.09	100km	15th Tango 100 km Ultramarathon	12:52:11 h	837
26.04	100km	7th 100 km Ultra Maranic Osaka	11:36:37 h	80
28.02	203km	5th Little Edo Oedo 200k	31:31:35 h	71
2013
15.09	100km	13th Tango 100 km Ultramarathon	10:53:23 h	199

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	5/3/2016	6th Little Edo Oedo 230k	233,00	×5
✓ 2	23/2/2019	9th Little Edo Oedo 200k	204,00	×4
✓ 3	3/3/2018	8th Little Edo Oedo 200k	204,00	×4
✓ 4	4/3/2017	7th Little Edo Oedo 200k	204,00	×4
✓ 5	28/2/2015	5th Little Edo Oedo 200k	203,00	×4
✓ 6	12/8/2017	6. Mauerweglauf 100 Meilen Berlin	160,93	×3
✓ 7	22/2/2020	10th Oedo Night run 115k	115,00	×2
✓ 8	3/8/2019	19th 24-hour relay & solo marathon Kobe	112,20	×2
✓ 9	7/2/2026	15th Taipei 24hr Ultra Marathon	108,96	×2
✓ 10	9/3/2019	18th Jeju City 100 km	100,00	×2
✓ 11	13/1/2019	4th Yakushima Ultramarathon	100,00	×2
✓ 12	23/4/2017	9th 100 km Ultra Maranic Osaka	100,00	×2
✓ 13	8/1/2017	2nd Yakushima Ultramarathon	100,00	×2
✓ 14	17/1/2016	26th Miyako 100 km Ultramarathon	100,00	×2
✓ 15	20/9/2015	15th Tango 100 km Ultramarathon	100,00	×2
✓ 16	26/4/2015	7th 100 km Ultra Maranic Osaka	100,00	×2
✓ 17	15/9/2013	13th Tango 100 km Ultramarathon	100,00	×2