Yuko (菊井祐子) Kikui

Born : 1966 Cat. W60 Ultrarunner since 1999

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

7,1%

Rank quotient ?This runner's calculation uses 77 eligible race(s): Σ(rank − 1) = 2 183; Σ finishers = 30 605. 2 183 / 30 605 × 100 = 7.13%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed77

Km — ultra races4 310 km

Longest race72,0 km

24th Fuji 5 Lakes 72 km Challenge — 20/4/2014

Km per year (ultra races)

2022

160

2023

160

2024

210

2025

100

2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win0

🏆 Win F1

🏅 Top 30

🏅 Top 3 F23

Longest winning streak0

Current streak0

Records

50 km4h10'10

HISTORY

77 race(s)

Date		Race	Perf.	Rk
2026
28.06	50km	41. Lake Saroma 50 km Ultramarathon	4:37:36 h	26
14.06	50km	20th Iwate Ginga 50km Marathon Challenge	4:42:00 h	18
2025
19.10	60km	31th River Shimanto 60km	5:57:11 h	48
29.06	50km	40. Lake Saroma 50 km Ultramarathon	4:56:12 h	29
08.06	50km	19th Iwate Ginga 50km Marathon Challenge	4:41:03 h	22
02.02	50km	4th Amami yori yori Run	5:19:54 h	5
2024
20.10	60km	30th River Shimanto 60km	5:46:31 h	39
30.06	50km	39. Lake Saroma 50 km Ultramarathon	4:58:58 h	36
09.06	50km	18th Iwate Ginga 50km Marathon Challenge	4:39:08 h	27
2023
15.10	60km	29th River Shimanto 60km	5:46:40 h	34
25.06	50km	38. Lake Saroma 50 km Ultramarathon	4:42:16 h	17
11.06	50km	17th Iwate Ginga 50km Marathon Challenge	4:43:04 h	19
2022
12.06	50km	16th Iwate Ginga 50km Marathon Challenge	4:31:48 h	24
2019
20.10	60km	25th River Shimanto 60km	5:38:15 h	38
30.06	50km	34. Lake Saroma 50 km Ultramarathon	4:39:44 h	20
09.06	50km	15th Iwate Ginga 50km Marathon Challenge	4:30:50 h	21
2018
21.10	60km	24th River Shimanto 60km	5:27:40 h	28
24.06	50km	33. Lake Saroma 50 km Ultramarathon	4:27:43 h	18
2017
15.10	60km	23rd River Shimanto 60km	5:24:58 h	37
23.07	50km	7th North Okhotsk 50 km Marathon	4:37:13 h	24
02.07	62km	1st Nikko 62km Ultramarathon	5:50:06 h	11
25.06	50km	32. Lake Saroma 50 km Ultramarathon	4:18:03 h	19
11.06	50km	13th Iwate Ginga 50km Marathon Challenge	4:23:45 h	33
2016
16.10	60km	22nd River Shimanto 60km	5:34:00 h	31
02.10	50km	1st Iki 50 km Ultra Marathon	4:52:39 h	13
11.09	50km	1st Koyasan and Ryujin-Onsen 50 km Ultra Marathon	5:16:51 h	60
26.06	50km	31. Lake Saroma 50 km Ultramarathon	4:28:56 h	29
12.06	50km	12th Iwate Ginga 50km Marathon Challenge	4:52:53 h	28
2015
18.10	60km	21st River Shimanto 60km	5:50:04 h	30
19.04	71km	25th Fuji 5 Lakes 71 km Challenge	7:37:20 h	71
2014
22.11	60km	1st Kiso-Sansen 60 km Ultra-Marathon	5:13:31 h	47
19.10	60km	20th River Shimanto 60km	5:24:14 h	20
21.09	50km	2nd 50 km Ultramarathon Hakusan-Shirakawago	4:56:54 h	35
14.09	60km	14th Tango 60 km Ultramarathon	5:40:32 h	62
29.06	50km	29. Lake Saroma 50 km Ultramarathon	4:31:26 h	24
08.06	50km	10th Iwate Ginga 50km Marathon Challenge	4:24:30 h	24
20.04	72km	24th Fuji 5 Lakes 72 km Challenge	7:06:41 h	36
2013
20.10	60km	19th River Shimanto 60km	5:12:10 h	17
15.09	60km	13th Tango 60 km Ultramarathon	5:44:08 h	93
30.06	50km	28. Lake Saroma 50 km Ultramarathon	4:23:34 h	17
09.06	50km	9th Iwate Ginga 50km Marathon Challenge	4:16:38 h	24
21.04	72km	23rd Fuji 5 Lakes 72 km Challenge	6:56:38 h	27
2012
21.10	60km	18th River Shimanto 60km	5:22:19 h	20
21.09	60km	12th Tango 60 km Ultramarathon	6:01:14 h	36
24.06	50km	27. Lake Saroma 50 km Ultramarathon	4:13:30 h	8
10.06	50km	8th Iwate Ginga 50km Marathon Challenge	4:18:59 h	38
22.04	72km	22nd Fuji 5 Lakes 72 km Challenge	6:45:06 h	34
2011
16.10	60km	17th River Shimanto 60km	5:22:51 h	17
18.09	60km	11th Tango 60 km Ultramarathon	5:49:34 h	32
21.08	55km	1st North Okhotsk 55 km Marathon	5:10:09 h	8
26.06	50km	26. Lake Saroma 50 km Ultramarathon	4:23:13 h	23
12.06	50km	7th Iwate Ginga 50km Marathon Challenge	4:27:57 h	32
30.04	72km	21st Fuji 5 Lakes 72 km Challenge	7:01:49 h	31
2010
17.10	60km	16th River Shimanto 60km	5:42:38 h	32
19.09	60km	10th Tango 60 km Ultramarathon	5:51:39 h	52
27.06	50km	25. Lake Saroma 50 km Ultramarathon	4:34:35 h	24
13.06	50km	6th Iwate Ginga 50km Marathon Challenge	4:34:06 h	17
25.04	72km	20th Fuji 5 Lakes 72 km Challenge	7:03:41 h	28
2009
18.10	60km	15th River Shimanto 60km	5:35:43 h	20
20.09	60km	9th Tango 60 km Ultramarathon	5:42:54 h	43
28.06	50km	24. Lake Saroma 50 km Ultramarathon	4:27:10 h	22
14.06	50km	5th Iwate Ginga 50km Marathon Challenge	4:49:00 h	25
26.04	72km	19th Fuji 5 Lakes 72 km Challenge	6:42:32 h	27
2008
19.10	60km	14th River Shimanto 60km	5:29:17 h	12
22.06	50km	23. Lake Saroma 50 km Ultramarathon	4:27:42 h	23
2007
14.10	60km	13th River Shimanto 60km	5:31:01 h	23
24.06	50km	22. Lake Saroma 50 km Ultramarathon	4:30:54 h	19
2006
15.10	60km	12th River Shimanto 60km	5:56:58 h	34
25.06	50km	21. Lake Saroma 50 km Ultramarathon	4:36:17 h	26
2005
16.10	60km	11th River Shimanto 60km	5:57:46 h	23
26.06	50km	20. Lake Saroma 50 km Ultramarathon	4:48:10 h	28
2004
27.06	50km	19. Lake Saroma 50 km Ultramarathon	4:27:22 h	60
2003
19.10	60km	9th River Shimanto 60km	5:36:27 h	18
29.06	50km	18. Lake Saroma 50 km Ultramarathon	4:10:10 h	12
2001
21.10	60km	8th River Shimanto 60km	5:51:34 h	42
2000
15.10	60km	7th River Shimanto 60km	5:45:51 h	32
1999
17.10	60km	6th River Shimanto 60km	6:04:41 h	58

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	20/4/2014	24th Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 2	21/4/2013	23rd Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 3	22/4/2012	22nd Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 4	30/4/2011	21st Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 5	25/4/2010	20th Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 6	26/4/2009	19th Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 7	19/4/2015	25th Fuji 5 Lakes 71 km Challenge	71,00	×1
✓ 8	2/7/2017	1st Nikko 62km Ultramarathon	62,00	×1
✓ 9	19/10/2025	31th River Shimanto 60km	60,00	×1
✓ 10	20/10/2024	30th River Shimanto 60km	60,00	×1
✓ 11	15/10/2023	29th River Shimanto 60km	60,00	×1
✓ 12	20/10/2019	25th River Shimanto 60km	60,00	×1
✓ 13	21/10/2018	24th River Shimanto 60km	60,00	×1
✓ 14	15/10/2017	23rd River Shimanto 60km	60,00	×1
✓ 15	16/10/2016	22nd River Shimanto 60km	60,00	×1
✓ 16	18/10/2015	21st River Shimanto 60km	60,00	×1
✓ 17	22/11/2014	1st Kiso-Sansen 60 km Ultra-Marathon	60,00	×1
✓ 18	19/10/2014	20th River Shimanto 60km	60,00	×1
✓ 19	14/9/2014	14th Tango 60 km Ultramarathon	60,00	×1
✓ 20	20/10/2013	19th River Shimanto 60km	60,00	×1
✓ 21	15/9/2013	13th Tango 60 km Ultramarathon	60,00	×1
✓ 22	21/10/2012	18th River Shimanto 60km	60,00	×1
✓ 23	21/9/2012	12th Tango 60 km Ultramarathon	60,00	×1
✓ 24	16/10/2011	17th River Shimanto 60km	60,00	×1
✓ 25	18/9/2011	11th Tango 60 km Ultramarathon	60,00	×1
✓ 26	17/10/2010	16th River Shimanto 60km	60,00	×1
✓ 27	19/9/2010	10th Tango 60 km Ultramarathon	60,00	×1
✓ 28	18/10/2009	15th River Shimanto 60km	60,00	×1
✓ 29	20/9/2009	9th Tango 60 km Ultramarathon	60,00	×1
✓ 30	19/10/2008	14th River Shimanto 60km	60,00	×1
✓ 31	14/10/2007	13th River Shimanto 60km	60,00	×1
✓ 32	15/10/2006	12th River Shimanto 60km	60,00	×1
✓ 33	16/10/2005	11th River Shimanto 60km	60,00	×1
✓ 34	19/10/2003	9th River Shimanto 60km	60,00	×1
✓ 35	21/10/2001	8th River Shimanto 60km	60,00	×1
✓ 36	15/10/2000	7th River Shimanto 60km	60,00	×1
✓ 37	17/10/1999	6th River Shimanto 60km	60,00	×1
✓ 38	21/8/2011	1st North Okhotsk 55 km Marathon	55,00	×1
✓ 39	28/6/2026	41. Lake Saroma 50 km Ultramarathon	50,00	×1
✓ 40	14/6/2026	20th Iwate Ginga 50km Marathon Challenge	50,00	×1
✓ 41	29/6/2025	40. Lake Saroma 50 km Ultramarathon	50,00	×1
✓ 42	8/6/2025	19th Iwate Ginga 50km Marathon Challenge	50,00	×1
✓ 43	2/2/2025	4th Amami yori yori Run	50,00	×1
✓ 44	30/6/2024	39. Lake Saroma 50 km Ultramarathon	50,00	×1
✓ 45	9/6/2024	18th Iwate Ginga 50km Marathon Challenge	50,00	×1
✓ 46	25/6/2023	38. Lake Saroma 50 km Ultramarathon	50,00	×1
✓ 47	11/6/2023	17th Iwate Ginga 50km Marathon Challenge	50,00	×1
✓ 48	12/6/2022	16th Iwate Ginga 50km Marathon Challenge	50,00	×1
✓ 49	30/6/2019	34. Lake Saroma 50 km Ultramarathon	50,00	×1
✓ 50	9/6/2019	15th Iwate Ginga 50km Marathon Challenge	50,00	×1
51	24/6/2018	33. Lake Saroma 50 km Ultramarathon	50,00	×1
52	23/7/2017	7th North Okhotsk 50 km Marathon	50,00	×1
53	25/6/2017	32. Lake Saroma 50 km Ultramarathon	50,00	×1
54	11/6/2017	13th Iwate Ginga 50km Marathon Challenge	50,00	×1
55	2/10/2016	1st Iki 50 km Ultra Marathon	50,00	×1
56	11/9/2016	1st Koyasan and Ryujin-Onsen 50 km Ultra Marathon	50,00	×1
57	26/6/2016	31. Lake Saroma 50 km Ultramarathon	50,00	×1
58	12/6/2016	12th Iwate Ginga 50km Marathon Challenge	50,00	×1
59	21/9/2014	2nd 50 km Ultramarathon Hakusan-Shirakawago	50,00	×1
60	29/6/2014	29. Lake Saroma 50 km Ultramarathon	50,00	×1
61	8/6/2014	10th Iwate Ginga 50km Marathon Challenge	50,00	×1
62	30/6/2013	28. Lake Saroma 50 km Ultramarathon	50,00	×1
63	9/6/2013	9th Iwate Ginga 50km Marathon Challenge	50,00	×1
64	24/6/2012	27. Lake Saroma 50 km Ultramarathon	50,00	×1
65	10/6/2012	8th Iwate Ginga 50km Marathon Challenge	50,00	×1
66	26/6/2011	26. Lake Saroma 50 km Ultramarathon	50,00	×1
67	12/6/2011	7th Iwate Ginga 50km Marathon Challenge	50,00	×1
68	27/6/2010	25. Lake Saroma 50 km Ultramarathon	50,00	×1
69	13/6/2010	6th Iwate Ginga 50km Marathon Challenge	50,00	×1
70	28/6/2009	24. Lake Saroma 50 km Ultramarathon	50,00	×1
71	14/6/2009	5th Iwate Ginga 50km Marathon Challenge	50,00	×1
72	22/6/2008	23. Lake Saroma 50 km Ultramarathon	50,00	×1
73	24/6/2007	22. Lake Saroma 50 km Ultramarathon	50,00	×1
74	25/6/2006	21. Lake Saroma 50 km Ultramarathon	50,00	×1
75	26/6/2005	20. Lake Saroma 50 km Ultramarathon	50,00	×1
76	27/6/2004	19. Lake Saroma 50 km Ultramarathon	50,00	×1
77	29/6/2003	18. Lake Saroma 50 km Ultramarathon	50,00	×1