Yumiko (渋谷由美子) Shibuya

Born : 1959 Cat. W65 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

64,3%

Rank quotient ?This runner's calculation uses 65 eligible race(s): Σ(rank − 1) = 20 181; Σ finishers = 31 406. 20 181 / 31 406 × 100 = 64.26%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed65

Km — ultra races5 401 km

> 100 km7

Longest race125,0 km

7th Fujisan Issyu Walking — 10/6/2023

Km per year (ultra races)

330

2022

378

2023

223

2024

264

2025

196

2026

Race types (share of distance)

Road86,4%

Trail5,6%

Ult.Walk7,9%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F0

🏅 Top 30

🏅 Top 3 F2

Longest winning streak0

Current streak0

Records

50 km5h31'46 100 km12h13'42 50 mi11h33'10 12 h70,00 km

HISTORY

65 race(s)

Date		Race	Perf.	Rk
2026
07.06	53.7km	24th Rishiri Island Ultra Marathon	8:13:56 h	375
30.05	72km	10th Yokosuka Miura 72km Michikusa Ultra Marathon	12:15:26 h	220
26.04	70km	2nd Suo-Oshima Ultramarathon	11:34:15 h	174
2025
11.10	100km	27th Yukihashi to Beppu 100 km	20:30:35 h	996
28.09	64km	28th Muraoka 64 km Ultra Marathon	9:02:24 h	482
03.05	100km	7th Sunny Okayama 100km	19:55:00 h	156
2024
29.09	64km	27th Muraoka 64 km Ultra Marathon	10:24:21 h	237
05.05	55km	18th Nagasaki Tachibana Gulf Coast Super Maranic 55	8:53:34 h	64
23.02	104km	1st Osaka Ultra Walking	23:42:11 h	94
2023
24.09	66km	26th Muraoka 66 km Ultra Marathon	10:36:46 h	197
10.06	125km	7th Fujisan Issyu Walking	23:56:28 h	48
26.05	12h	2nd Hirosaki 12h Ultra Run	70.000 km	13
03.05	55km	17th Nagasaki Tachibana Gulf Coast Super Maranic 55	8:30:08 h	57
16.04	62km	33th Fuji 3 Lakes 62 km Challenge	9:52:36 h	720
2022
09.10	60km	14th Echigo Kubikino 60km Ultramarathon	8:38:29 h	295
17.07	65km	2nd Yamaguchi Hagi Return	11:44:27 h	181
28.05	100km	4th Tsukuba Rinrin Road 100km	18:53:00 h	44
11.02	105km	1st Kobe Akashi Ultra Marathon	20:18:23 h	14
2021
31.10	55km	2nd Yamadera Zao 50 km Ultra Marathon	8:02:10 h	69
18.07	65km	1st Yamaguchi Hagi Return	11:55:55 h	293
03.07	100km	4th Ultra Walking around Lake Biwa	18:37:02 h	17
27.02	100km	3rd Hakone Kodo Ultra Walking	21:22:11 h	27
2020
31.10	104km	1st Shodoshima Round Ultra Run	18:28:00 h	18
04.10	64km	7th Naeba-Sanroku Geopark Tsunan Ultramarathon 64K	10:50:26 h	119
20.09	80km	6th Nishi Seto Expressway Ultra Run	15:39:52 h	74
2019
08.12	100km	2nd Tobishima Ultra Marathon	15:35:12 h	323
02.11	103km	Tachibana Bay Coast 103 Ultra Marathon	16:51:20 h	137
29.09	88km	22th Muraoka 88 km Ultra Marathon	13:49:41 h	214
28.07	50km	9th North Okhotsk 50 km Marathon	7:07:01 h	101
05.05	55km	13th Nagasaki Tachibana Gulf Coast Super Maranic 55	7:31:08 h	37
2018
16.12	50km	3rd Okinawa 50km Ultramarathon	7:03:21 h	70
10.06	50km	2nd Koyasan and Ryujin-Onsen 50 km Ultra Marathon	7:09:33 h	297
14.04	102km	4th Okuizumo Ultra Orochi 100km Tooashi	15:26:34 h	328
14.01	100km	3rd Yakushima Ultramarathon	15:09:28 h	74
2017
15.10	60km	6th Noto Peninsula 60 km Ultra Marathon	8:34:27 h	104
23.07	50km	7th North Okhotsk 50 km Marathon	6:04:18 h	65
28.05	100km	24th Ebisu-Daikoku 100 km Marathon	13:56:57 h	363
04.05	80km	11th Nagasaki Tachibana Gulf Coast Super Maranic 80	11:33:10 h	74
2016
09.10	100km	11th Echigo Kubikino 100km Ultramarathon	13:11:43 h	1066
11.09	100km	4th 100 km Ultramarathon Hakusan-Shirakawago	13:47:40 h	381
05.06	100km	4th Tokyo Shibamata 100 km	13:06:05 h	880
2015
20.09	100km	15th Tango 100 km Ultramarathon	13:45:56 h	1376
14.06	100km	11th Iwate Ginga 100km Marathon Challenge	13:23:50 h	694
28.03	100km	11th Izu Oshima Ultra 100 km	13:20:11 h	143
2014
12.10	100km	10th Echigo Kubikino 100km Ultramarathon	12:41:03 h	769
14.09	88km	5th Akiota Yajirushi Marathon 88km	11:23:10 h	173
27.07	50km	4th North Okhotsk 50 km Marathon	5:34:14 h	53
07.06	100km	24th Aso Caldera Super Marathon 100 km	13:03:18 h	639
10.05	103km	3rd Tojinbo 103 km Ultramarathon	14:11:42 h	109
12.01	100km	24th Miyako 100 km Ultramarathon	12:44:35 h	209
2013
29.09	50km	1st 50 km Ultramarathon Hakusan-Shirakawago	6:24:03 h	196
11.08	50km	3rd North Okhotsk 50 km Marathon	5:31:46 h	64
09.06	100km	2nd Hida Takayama 100 km Ultramarathon	13:25:09 h	631
28.04	100km	15. Okukumano 100 km Ultramarathon	13:21:39 h	134
2012
06.10	100km	9th Echigo Kubikino 100km Ultramarathon	12:45:09 h	652
19.08	100km	2nd North Okhotsk 100 km Marathon	12:13:42 h	99
08.07	8h	18th 8-Hour Endurance Race Tokorozawa - 3 tai	71.412 km	29
17.06	100km	7. Okinoshima 100km Ultra Marathon	12:24:28 h	108
20.05	100km	18th Yatsugatake Nobeyama 100 km	13:54:37 h	989
2011
25.09	100km	21. Akita Nairiku 100km Marathon	12:46:37 h	531
2010
09.10	100km	8th Echigo Kubikino 100km Ultramarathon	12:35:27 h	566
01.08	77km	17. Ultramarathon Okumusashi	9:50:28 h	451
04.07	8h	16th 8-Hour Endurance Race Tokorozawa - 3 tai	64.920 km	14
27.06	100km	25. Lake Saroma 100 km Ultramarathon	12:44:48 h	1407
2009
18.10	100km	15th River Shimanto 100km	12:51:55 h	712

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	10/6/2023	7th Fujisan Issyu Walking	125,00	×2
✓ 2	11/2/2022	1st Kobe Akashi Ultra Marathon	105,00	×1
✓ 3	23/2/2024	1st Osaka Ultra Walking	104,00	×1
✓ 4	31/10/2020	1st Shodoshima Round Ultra Run	104,00	×1
✓ 5	2/11/2019	Tachibana Bay Coast 103 Ultra Marathon	103,00	×1
✓ 6	10/5/2014	3rd Tojinbo 103 km Ultramarathon	103,00	×1
✓ 7	14/4/2018	4th Okuizumo Ultra Orochi 100km Tooashi	102,00	×1
✓ 8	11/10/2025	27th Yukihashi to Beppu 100 km	100,00	×1
✓ 9	3/5/2025	7th Sunny Okayama 100km	100,00	×1
✓ 10	28/5/2022	4th Tsukuba Rinrin Road 100km	100,00	×1
✓ 11	3/7/2021	4th Ultra Walking around Lake Biwa	100,00	×1
✓ 12	27/2/2021	3rd Hakone Kodo Ultra Walking	100,00	×1
✓ 13	8/12/2019	2nd Tobishima Ultra Marathon	100,00	×1
✓ 14	14/1/2018	3rd Yakushima Ultramarathon	100,00	×1
✓ 15	28/5/2017	24th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 16	9/10/2016	11th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 17	11/9/2016	4th 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 18	5/6/2016	4th Tokyo Shibamata 100 km	100,00	×1
✓ 19	20/9/2015	15th Tango 100 km Ultramarathon	100,00	×1
✓ 20	14/6/2015	11th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 21	28/3/2015	11th Izu Oshima Ultra 100 km	100,00	×1
✓ 22	12/10/2014	10th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 23	7/6/2014	24th Aso Caldera Super Marathon 100 km	100,00	×1
✓ 24	12/1/2014	24th Miyako 100 km Ultramarathon	100,00	×1
✓ 25	9/6/2013	2nd Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 26	28/4/2013	15. Okukumano 100 km Ultramarathon	100,00	×1
✓ 27	6/10/2012	9th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 28	19/8/2012	2nd North Okhotsk 100 km Marathon	100,00	×1
✓ 29	17/6/2012	7. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 30	20/5/2012	18th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 31	25/9/2011	21. Akita Nairiku 100km Marathon	100,00	×1
✓ 32	9/10/2010	8th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 33	27/6/2010	25. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 34	18/10/2009	15th River Shimanto 100km	100,00	×1
✓ 35	29/9/2019	22th Muraoka 88 km Ultra Marathon	88,00	×1
✓ 36	14/9/2014	5th Akiota Yajirushi Marathon 88km	88,00	×1
✓ 37	20/9/2020	6th Nishi Seto Expressway Ultra Run	80,00	×1
✓ 38	4/5/2017	11th Nagasaki Tachibana Gulf Coast Super Maranic 80	80,00	×1
✓ 39	1/8/2010	17. Ultramarathon Okumusashi	77,00	×1
✓ 40	30/5/2026	10th Yokosuka Miura 72km Michikusa Ultra Marathon	72,00	×1
✓ 41	8/7/2012	18th 8-Hour Endurance Race Tokorozawa - 3 tai	71,41	×1
✓ 42	26/4/2026	2nd Suo-Oshima Ultramarathon	70,00	×1
✓ 43	26/5/2023	2nd Hirosaki 12h Ultra Run	70,00	×1
✓ 44	24/9/2023	26th Muraoka 66 km Ultra Marathon	66,00	×1
✓ 45	17/7/2022	2nd Yamaguchi Hagi Return	65,00	×1
✓ 46	18/7/2021	1st Yamaguchi Hagi Return	65,00	×1
✓ 47	4/7/2010	16th 8-Hour Endurance Race Tokorozawa - 3 tai	64,92	×1
✓ 48	28/9/2025	28th Muraoka 64 km Ultra Marathon	64,00	×1
✓ 49	29/9/2024	27th Muraoka 64 km Ultra Marathon	64,00	×1
✓ 50	4/10/2020	7th Naeba-Sanroku Geopark Tsunan Ultramarathon 64K	64,00	×1
✓ 51	16/4/2023	33th Fuji 3 Lakes 62 km Challenge	62,00	×1
✓ 52	9/10/2022	14th Echigo Kubikino 60km Ultramarathon	60,00	×1
✓ 53	15/10/2017	6th Noto Peninsula 60 km Ultra Marathon	60,00	×1
✓ 54	5/5/2024	18th Nagasaki Tachibana Gulf Coast Super Maranic 55	55,00	×1
✓ 55	3/5/2023	17th Nagasaki Tachibana Gulf Coast Super Maranic 55	55,00	×1
56	31/10/2021	2nd Yamadera Zao 50 km Ultra Marathon	55,00	×1
57	5/5/2019	13th Nagasaki Tachibana Gulf Coast Super Maranic 55	55,00	×1
58	7/6/2026	24th Rishiri Island Ultra Marathon	53,70	—
59	28/7/2019	9th North Okhotsk 50 km Marathon	50,00	—
60	16/12/2018	3rd Okinawa 50km Ultramarathon	50,00	—
61	10/6/2018	2nd Koyasan and Ryujin-Onsen 50 km Ultra Marathon	50,00	—
62	23/7/2017	7th North Okhotsk 50 km Marathon	50,00	—
63	27/7/2014	4th North Okhotsk 50 km Marathon	50,00	—
64	29/9/2013	1st 50 km Ultramarathon Hakusan-Shirakawago	50,00	—
65	11/8/2013	3rd North Okhotsk 50 km Marathon	50,00	—