Yasuko (村上恭子) Murakami

Born : 1957 Cat. W65 Ultrarunner since 2012

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

Morocco

69,4%

Rank quotient ?This runner's calculation uses 67 eligible race(s): Σ(rank − 1) = 14 942; Σ finishers = 21 525. 14 942 / 21 525 × 100 = 69.42%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed73

Km — ultra races8 696 km

> 100 km28

> 160 km13

> 200 km9

Longest race520,0 km

13th River Road Foot Race 520 km — 30/4/2017

Km per year (ultra races)

650

2022

624

2023

622

2024

950

2025

358

2026

Race types (share of distance)

Road89,8%

Trail3,5%

Stage4,4%

Ult.Walk2,3%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F1

🏅 Top 30

🏅 Top 3 F5

Longest winning streak0

Current streak0

Records

100 km12h37'16 50 mi10h50'14 100 mi28h11'58

HISTORY

67 race(s) · 2 stage(s) nested

Date		Race	Perf.	Rk
2026
04.05	80km	20th Nagasaki Tachibana Gulf Coast Super Maranic 80	11:36:28 h	47
18.04	70km	5th Atsumi Peninsula Ultra Nature Run - 70km	10:59:24 h	249
28.03	160km	1st Shinkun Iga-goe Route Journey Run	28:11:58 h	72
01.02	48km	4. Minuma Challenge 48	6:18:35 h	12
2025
21.11	103km	19th Nagasaki Tachibana Gulf Coast Super Maranic 103	16:39:38 h	84
01–02.11	130km/2stages	3rd Mito Kaido Journey run	18:06:58 h	23
01.11	62.2km	3rd Mito Kaido Journey run - Stage 1	8:38:55 h	22
02.11	68.1km	3rd Mito Kaido Journey run - Stage 2	9:28:03 h	30
04.10	151km	2nd Noto Country Journey Run	25:06:15 h	78
23.08	100km	1st Summer Karuizawa and Joshu Nakasendo Ultra Walking	22:06:52 h	42
19.07	102km	2nd Shinshu Nakasendo 12 Stations Ultra Race	20:51:13 h	34
15.03	200km	15th Little Edo Oedo 200k	35:36:23 h	178
26.01	62km	3. Minuma Challenge 60	8:37:23 h	77
11.01	102km	2nd Nara Mahoroba Ultra Walking	19:04:21 h	23
2024
24.11	103km	18th Nagasaki Tachibana Gulf Coast Super Maranic 103	16:28:27 h	55
23.08	210km	1st Donan Story Journey Run	38:59:29 h	49
13.07	154km	8th Michinoku Tsugaru Journey Run 154K	28:27:13 h	61
05.05	80km	18th Nagasaki Tachibana Gulf Coast Super Maranic 80	10:50:14 h	46
16.03	75km	8th Minamiboso 75km	10:43:31 h	53
2023
10.12	100km	4th Tobishima Ultra Marathon	13:28:26 h	152
11.11	66km	10th Michikusa-Ultra, Minamiizu 66 km	9:26:05 h	44
28.10	73km	2nd Kosaka Pass Ultra Run	11:20:29 h	22
24.09	56km	5th Aga Ultra Marathon - 56km	8:29:54 h	57
17.06	159km	4th Nikko Sennin Concentric Highway Journey Run	30:37:51 h	45
21.05	77km	28th Saba Highway Ultramarathon	11:54:45 h	375
25.02	93km	3rd Nihondaira and Suruganokuni Ultra Run	18:32:30 h	6
2022
15.10	150km	1st Yagurazawa Round Trip Pre-Tournament	28:17:48 h	43
17.07	65km	2nd Yamaguchi Hagi Return	10:18:45 h	96
04.05	80km	16th Nagasaki Tachibana Gulf Coast Super Maranic 80	11:19:23 h	65
25.03	250km/6stages	36. Marathon des Sables	2d 01:23:03 h	561
11.02	105km	1st Kobe Akashi Ultra Marathon	26:15:16 h	111
2021
30.10	146km	3rd Autumn leaves in Okumusashi / Chichibu Journey run	21:48:30 h	100
16.10	100km	4th Nakasendo to Kisoji Ultra Run	21:51:59 h	32
18.07	100km	1st Yamaguchi Hagi Return	14:53:38 h	132
27.02	200km	11th Little Edo Oedo 200k	35:14:20 h	173
2020
24.10	146km	2nd Autumn leaves in Okumusashi / Chichibu Journey run	22:44:30 h	108
2019
19.10	100km	4th Iki 100 km Ultra Marathon	13:11:25 h	187
15.09	100km	19th Tango 100 km Ultramarathon	13:47:44 h	903
04.05	173km	13th Nagasaki Tachibana Gulf Coast Super Maranic 173	30:36:26 h	63
2018
02.11	105km	Tachibana Bay Coast 105 Ultra Marathon	14:49:00 h	86
14.07	263km	3rd Michinoku Tsugaru Journey Run 263K	2d 01:51:47 h	75
26.05	103km	7th Tojinbo 103 km Ultramarathon	14:27:12 h	92
30.04	514km	14th River Road Foot Race 514 km	4d 20:58:02 h	22
03.03	204km	8th Little Edo Oedo 200k	35:27:23 h	218
2017
17.12	100km	2nd Okinawa 100km Ultramarathon	12:50:36 h	217
10.09	100km	5th 100 km Ultramarathon Hakusan-Shirakawago	13:45:09 h	463
15.07	200km	2nd Michinoku Tsugaru Journey Run 200K	37:36:32 h	54
11.06	100km	13th Iwate Ginga 100km Marathon Challenge	13:39:59 h	1007
30.04	520km	13th River Road Foot Race 520 km	5d 06:18:00 h	47
08.04	70km	12th Toda Saiko 70 km	8:33:10 h	515
04.03	204km	7th Little Edo Oedo 200k	35:37:01 h	225
2016
16.10	100km	22nd River Shimanto 100km	12:37:16 h	650
21.08	97km	4th World Cultural Heritage "Fuji" Foot Race	13:33:00 h	43
31.07	100km	6th North Okhotsk 100 km Marathon	13:14:38 h	142
03.05	255km	12th River Road Foot Race 255 km	2d 04:13:07 h	21
09.04	70km	11th Toda Saiko 70 km	8:03:59 h	274
06.03	100km	2nd Nagoura Marathon 100 km	13:30:28 h	137
2015
21.06	100km	10. Okinoshima 100km Ultra Marathon	13:12:27 h	305
28.03	100km	11th Izu Oshima Ultra 100 km	13:29:32 h	159
28.02	203km	5th Little Edo Oedo 200k	35:40:48 h	217
2014
18.05	100km	20th Yatsugatake Nobeyama 100 km	13:56:34 h	1222
27.04	100km	16. Okukumano 100 km Ultramarathon	14:23:51 h	232
12.01	100km	24th Miyako 100 km Ultramarathon	13:53:28 h	405
2013
20.10	100km	2nd Noto Peninsula 100 km Ultra Marathon	13:02:45 h	192
28.07	77km	20. Ultramarathon Okumusashi	11:05:56 h	1116
09.06	100km	2nd Hida Takayama 100 km Ultramarathon	13:47:49 h	789
13.04	70km	8th Toda Saiko 70 km	8:18:39 h	234
2012
06.10	100km	9th Echigo Kubikino 100km Ultramarathon	13:18:36 h	974
22.04	72km	22nd Fuji 5 Lakes 72 km Challenge	9:48:42 h	418

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	30/4/2017	13th River Road Foot Race 520 km	520,00	×6
✓ 2	30/4/2018	14th River Road Foot Race 514 km	514,00	×6
✓ 3	14/7/2018	3rd Michinoku Tsugaru Journey Run 263K	263,00	×3
✓ 4	3/5/2016	12th River Road Foot Race 255 km	255,00	×3
✓ 5	25/3/2022	36. Marathon des Sables	250,00	×3
✓ 6	23/8/2024	1st Donan Story Journey Run	210,00	×2
✓ 7	3/3/2018	8th Little Edo Oedo 200k	204,00	×2
✓ 8	4/3/2017	7th Little Edo Oedo 200k	204,00	×2
✓ 9	28/2/2015	5th Little Edo Oedo 200k	203,00	×2
✓ 10	15/3/2025	15th Little Edo Oedo 200k	200,00	×2
✓ 11	27/2/2021	11th Little Edo Oedo 200k	200,00	×2
✓ 12	15/7/2017	2nd Michinoku Tsugaru Journey Run 200K	200,00	×2
✓ 13	4/5/2019	13th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×2
✓ 14	28/3/2026	1st Shinkun Iga-goe Route Journey Run	160,00	×2
✓ 15	17/6/2023	4th Nikko Sennin Concentric Highway Journey Run	159,00	×2
✓ 16	13/7/2024	8th Michinoku Tsugaru Journey Run 154K	154,00	×1
✓ 17	4/10/2025	2nd Noto Country Journey Run	151,00	×1
✓ 18	15/10/2022	1st Yagurazawa Round Trip Pre-Tournament	150,00	×1
✓ 19	30/10/2021	3rd Autumn leaves in Okumusashi / Chichibu Journey run	146,00	×1
✓ 20	24/10/2020	2nd Autumn leaves in Okumusashi / Chichibu Journey run	146,00	×1
✓ 21	1/11/2025	3rd Mito Kaido Journey run	130,00	×1
✓ 22	11/2/2022	1st Kobe Akashi Ultra Marathon	105,00	×1
✓ 23	2/11/2018	Tachibana Bay Coast 105 Ultra Marathon	105,00	×1
✓ 24	21/11/2025	19th Nagasaki Tachibana Gulf Coast Super Maranic 103	103,00	×1
✓ 25	24/11/2024	18th Nagasaki Tachibana Gulf Coast Super Maranic 103	103,00	×1
✓ 26	26/5/2018	7th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 27	19/7/2025	2nd Shinshu Nakasendo 12 Stations Ultra Race	102,00	×1
✓ 28	11/1/2025	2nd Nara Mahoroba Ultra Walking	102,00	×1
✓ 29	23/8/2025	1st Summer Karuizawa and Joshu Nakasendo Ultra Walking	100,00	×1
✓ 30	10/12/2023	4th Tobishima Ultra Marathon	100,00	×1
✓ 31	16/10/2021	4th Nakasendo to Kisoji Ultra Run	100,00	×1
✓ 32	18/7/2021	1st Yamaguchi Hagi Return	100,00	×1
✓ 33	19/10/2019	4th Iki 100 km Ultra Marathon	100,00	×1
✓ 34	15/9/2019	19th Tango 100 km Ultramarathon	100,00	×1
✓ 35	17/12/2017	2nd Okinawa 100km Ultramarathon	100,00	×1
✓ 36	10/9/2017	5th 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 37	11/6/2017	13th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 38	16/10/2016	22nd River Shimanto 100km	100,00	×1
✓ 39	31/7/2016	6th North Okhotsk 100 km Marathon	100,00	×1
✓ 40	6/3/2016	2nd Nagoura Marathon 100 km	100,00	×1
✓ 41	21/6/2015	10. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 42	28/3/2015	11th Izu Oshima Ultra 100 km	100,00	×1
✓ 43	18/5/2014	20th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 44	27/4/2014	16. Okukumano 100 km Ultramarathon	100,00	×1
✓ 45	12/1/2014	24th Miyako 100 km Ultramarathon	100,00	×1
✓ 46	20/10/2013	2nd Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 47	9/6/2013	2nd Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 48	6/10/2012	9th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 49	21/8/2016	4th World Cultural Heritage "Fuji" Foot Race	97,00	×1
✓ 50	25/2/2023	3rd Nihondaira and Suruganokuni Ultra Run	93,00	×1
✓ 51	4/5/2026	20th Nagasaki Tachibana Gulf Coast Super Maranic 80	80,00	×1
✓ 52	5/5/2024	18th Nagasaki Tachibana Gulf Coast Super Maranic 80	80,00	×1
✓ 53	4/5/2022	16th Nagasaki Tachibana Gulf Coast Super Maranic 80	80,00	×1
✓ 54	21/5/2023	28th Saba Highway Ultramarathon	77,00	—
✓ 55	28/7/2013	20. Ultramarathon Okumusashi	77,00	—
✓ 56	16/3/2024	8th Minamiboso 75km	75,00	—
✓ 57	28/10/2023	2nd Kosaka Pass Ultra Run	73,00	—
✓ 58	22/4/2012	22nd Fuji 5 Lakes 72 km Challenge	72,00	—
✓ 59	18/4/2026	5th Atsumi Peninsula Ultra Nature Run - 70km	70,00	—
✓ 60	8/4/2017	12th Toda Saiko 70 km	70,00	—
✓ 61	9/4/2016	11th Toda Saiko 70 km	70,00	—
✓ 62	13/4/2013	8th Toda Saiko 70 km	70,00	—
✓ 63	11/11/2023	10th Michikusa-Ultra, Minamiizu 66 km	66,00	—
✓ 64	17/7/2022	2nd Yamaguchi Hagi Return	65,00	—
65	26/1/2025	3. Minuma Challenge 60	62,00	—
66	24/9/2023	5th Aga Ultra Marathon - 56km	56,00	—
67	1/2/2026	4. Minuma Challenge 48	48,00	—