Kenzo (国井健三) Kunii

Born : 1956 Cat. M70 Ultrarunner since 2001

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

Vietnam

40,7%

Rank quotient ?This runner's calculation uses 76 eligible race(s): Σ(rank − 1) = 39 681; Σ finishers = 97 555. 39 681 / 97 555 × 100 = 40.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed77

Km — ultra races7 042 km

> 100 km6

> 160 km5

> 200 km2

Longest race250,0 km

16. Yamaguchi 100 Hagi-O-Kan Maranic 250 km — 2/5/2004

Km per year (ultra races)

150

2022

2023

2024

2025

2026

Race types (share of distance)

Road47,1%

Trail51,1%

Stage1,9%

Records

100 km9h40'08 100 mi23h04'55

HISTORY

76 race(s)

Date		Race	Perf.	Rk
2025
12.10	71.5km	33th Hasetsune Cup - Japan Mountain Endurance Race	22:30:53 h	1139
2024
13.10	71.5km	32th Hasetsune Cup - Japan Mountain Endurance Race	20:56:13 h	1263
2023
08.10	71.5km	31th Hasetsune Cup - Japan Mountain Endurance Race	21:09:17 h	1311
2022
09.10	71.5km	30th Hasetsune Cup - Japan Mountain Endurance Race	22:20:45 h	1136
05.06	78km	29. Ultramarathon Okumusashi	10:51:04 h	685
2020
22.08	63.7km	1st Toda Aya Lake Ultra Marathon	8:28:09 h	72
2019
21.09	70km	7. Vietnam Mountain Marathon 70km	14:51:06 h	66
30.06	100km	34. Lake Saroma 100 km Ultramarathon	12:17:35 h	1508
02.06	78km	26. Ultramarathon Okumusashi	9:42:13 h	754
19.05	100km	25th Yatsugatake Nobeyama 100 km	13:02:14 h	826
2018
07.10	71.5km	26th Hasetsune Cup - Japan Mountain Endurance Race	18:07:59 h	754
24.06	100km	33. Lake Saroma 100 km Ultramarathon	12:28:53 h	1759
03.06	78km	25. Ultramarathon Okumusashi	10:05:41 h	727
20.05	100km	24th Yatsugatake Nobeyama 100 km	12:56:07 h	720
2017
08.10	71.5km	25th Hasetsune Cup - Japan Mountain Endurance Race	17:01:16 h	870
25.06	100km	32. Lake Saroma 100 km Ultramarathon	12:34:51 h	1684
04.06	78km	24. Ultramarathon Okumusashi	9:43:05 h	732
21.05	100km	23rd Yatsugatake Nobeyama 100 km	13:23:29 h	668
2016
09.10	71.5km	24th Hasetsune Cup - Japan Mountain Endurance Race	15:34:53 h	718
26.06	100km	31. Lake Saroma 100 km Ultramarathon	11:35:18 h	1221
05.06	78km	23. Ultramarathon Okumusashi	8:44:07 h	431
22.05	100km	22nd Yatsugatake Nobeyama 100 km	12:40:22 h	567
2015
31.10	71.5km	23rd Hasetsune Cup - Japan Mountain Endurance Race	14:18:07 h	770
28.06	100km	30. Lake Saroma 100 km Ultramarathon	12:48:14 h	2378
22.06	77km	22. Ultramarathon Okumusashi	9:21:43 h	640
17.05	100km	21st Yatsugatake Nobeyama 100 km	11:42:09 h	319
2014
12.10	71.5km	22nd Hasetsune Cup - Japan Mountain Endurance Race	13:46:15 h	616
27.07	77km	21. Ultramarathon Okumusashi	10:15:30 h	531
29.06	100km	29. Lake Saroma 100 km Ultramarathon	12:17:18 h	979
18.05	100km	20th Yatsugatake Nobeyama 100 km	12:48:39 h	546
25.04	100mi	3rd Ultra-Trail Mt. Fuji	38:24:43 h	297
2013
13.10	71.5km	21st Hasetsune Cup - Japan Mountain Endurance Race	13:42:19 h	506
28.07	77km	20. Ultramarathon Okumusashi	9:48:51 h	679
30.06	100km road race	28. Lake Saroma 100 km Ultramarathon	11:56:36 h	1109
19.05	100km	19th Yatsugatake Nobeyama 100 km	12:51:44 h	539
26.04	100mi	2nd Ultra-Trail Mount Fuji	35:29:15 h	233
2012
07.10	71.5km	20th Hasetsune Cup - Japan Mountain Endurance Race	13:54:42 h	545
25.08	70km	2nd Utsukushigahara 70 km Trail Run	13:27:03 h	59
05.08	77km	19. Ultramarathon Okumusashi	9:16:13 h	374
24.06	100km road race	27. Lake Saroma 100 km Ultramarathon	11:52:56 h	1230
20.05	100km	18th Yatsugatake Nobeyama 100 km	12:22:56 h	346
2011
09.10	71.5km	19th Hasetsune Cup - Japan Mountain Endurance Race	15:15:26 h	627
16.07	100mi	4th OSJ Ontake 100 Mile Ultra Trail	23:04:55 h	19
26.06	100km road race	26. Lake Saroma 100 km Ultramarathon	10:22:32 h	416
2010
10.10	71.5km	18th Hasetsune Cup - Japan Mountain Endurance Race	12:19:25 h	203
01.08	77km	17. Ultramarathon Okumusashi	8:01:14 h	131
18.07	100km	3rd OSJ Ontake 100km Ultra Trail	13:11:08 h	50
27.06	100km	25. Lake Saroma 100 km Ultramarathon	12:40:12 h	1341
16.05	100km	16th Yatsugatake Nobeyama 100 km	10:35:43 h	103
2009
11.10	71.5km	17th Hasetsune Cup - Japan Mountain Endurance Race	11:42:22 h	192
02.08	75km	16. Ultramarathon Okumusashi	7:58:13 h	220
17.05	100km	15th Yatsugatake Nobeyama 100 km	11:50:38 h	174
2008
12.10	71.5km	16th Hasetsune Cup - Japan Mountain Endurance Race	11:31:40 h	179
03.08	75km	15. Ultramarathon Okumusashi	7:26:40 h	81
18.05	100km	14th Yatsugatake Nobeyama 100 km	10:44:21 h	64
2007
14.10	71.5km	15th Hasetsune Cup - Japan Mountain Endurance Race	12:14:24 h	193
05.08	75km	14. Ultramarathon Okumusashi	7:28:16 h	78
24.06	100km	22. Lake Saroma 100 km Ultramarathon	9:40:08 h	233
20.05	100km	13th Yatsugatake Nobeyama 100 km	10:36:45 h	66
2006
15.10	100km	12th River Shimanto 100km	11:08:53 h	250
08.10	71.5km	14th Hasetsune Cup - Japan Mountain Endurance Race	12:50:13 h	185
13.08	75km	13. Ultramarathon Okumusashi	9:02:11 h	243
25.06	100km	21. Lake Saroma 100 km Ultramarathon	11:54:14 h	874
21.05	100km	12th Yatsugatake Nobeyama 100 km	12:46:39 h	278
2005
09.10	71.5km	13th Hasetsune Cup - Japan Mountain Endurance Race	13:05:32 h	135
07.08	75km	12. Ultramarathon Okumusashi	7:43:18 h	62
26.06	100km	Open Race at IAU 100km WC Yubetsu (20. Lake Saroma 100 km Ultramarathon)	10:06:08 h	294
22.05	100km	11th Yatsugatake Nobeyama 100 km	11:10:59 h	72
2004
10.10	71.5km	12th Hasetsune Cup - Japan Mountain Endurance Race	13:10:52 h	92
02.05	250km	16. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	45:21:26 h	81
2003
25.10	71.5km	11th Hasetsune Cup - Japan Mountain Endurance Race	12:40:21 h	99
26.07	132km/2stages	Yashagaike Legend Maranic 132 km	16:26:29 h	74
02.05	250km	15. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	46:17:30 h	100
2002
12.10	71.5km	10th Hasetsune Cup - Japan Mountain Endurance Race	11:28:49 h	30
12.05	100km	8th Yatsugatake Nobeyama 100 km	12:06:01 h	171
2001
06.10	71.5km	9th Hasetsune Cup - Japan Mountain Endurance Race	11:53:53 h	40

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	2/5/2004	16. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 2	2/5/2003	15. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 3	25/4/2014	3rd Ultra-Trail Mt. Fuji (UTMF)	160,93	×2
✓ 4	26/4/2013	2nd Ultra-Trail Mount Fuji (UTMF)	160,93	×2
✓ 5	16/7/2011	4th OSJ Ontake 100 Mile Ultra Trail	160,93	×2
✓ 6	26/7/2003	Yashagaike Legend Maranic 132 km	132,00	×1
✓ 7	30/6/2019	34. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 8	19/5/2019	25th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 9	24/6/2018	33. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 10	20/5/2018	24th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 11	25/6/2017	32. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 12	21/5/2017	23rd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 13	26/6/2016	31. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 14	22/5/2016	22nd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 15	28/6/2015	30. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 16	17/5/2015	21st Yatsugatake Nobeyama 100 km	100,00	×1
✓ 17	29/6/2014	29. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 18	18/5/2014	20th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 19	30/6/2013	28. Lake Saroma 100 km Ultramarathon (JPN)	100,00	×1
✓ 20	19/5/2013	19th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 21	24/6/2012	27. Lake Saroma 100 km Ultramarathon (JPN)	100,00	×1
✓ 22	20/5/2012	18th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 23	26/6/2011	26. Lake Saroma 100 km Ultramarathon (JPN)	100,00	×1
✓ 24	18/7/2010	3rd OSJ Ontake 100km Ultra Trail	100,00	×1
✓ 25	27/6/2010	25. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 26	16/5/2010	16th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 27	17/5/2009	15th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 28	18/5/2008	14th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 29	24/6/2007	22. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 30	20/5/2007	13th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 31	15/10/2006	12th River Shimanto 100km	100,00	×1
✓ 32	25/6/2006	21. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 33	21/5/2006	12th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 34	26/6/2005	Open Race at IAU 100km WC Yubetsu (20. Lake Saroma 100 km Ultramarathon)	100,00	×1
✓ 35	22/5/2005	11th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 36	12/5/2002	8th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 37	5/6/2022	29. Ultramarathon Okumusashi	78,00	×1
✓ 38	2/6/2019	26. Ultramarathon Okumusashi	78,00	×1
✓ 39	3/6/2018	25. Ultramarathon Okumusashi	78,00	×1
✓ 40	4/6/2017	24. Ultramarathon Okumusashi	78,00	×1
✓ 41	5/6/2016	23. Ultramarathon Okumusashi	78,00	×1
✓ 42	22/6/2015	22. Ultramarathon Okumusashi	77,00	×1
✓ 43	27/7/2014	21. Ultramarathon Okumusashi	77,00	×1
✓ 44	28/7/2013	20. Ultramarathon Okumusashi	77,00	×1
✓ 45	5/8/2012	19. Ultramarathon Okumusashi	77,00	×1
✓ 46	1/8/2010	17. Ultramarathon Okumusashi	77,00	×1
✓ 47	2/8/2009	16. Ultramarathon Okumusashi	75,00	×1
✓ 48	3/8/2008	15. Ultramarathon Okumusashi	75,00	×1
✓ 49	5/8/2007	14. Ultramarathon Okumusashi	75,00	×1
✓ 50	13/8/2006	13. Ultramarathon Okumusashi	75,00	×1
✓ 51	7/8/2005	12. Ultramarathon Okumusashi	75,00	×1
✓ 52	12/10/2025	33th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 53	13/10/2024	32th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 54	8/10/2023	31th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 55	9/10/2022	30th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 56	7/10/2018	26th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 57	8/10/2017	25th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 58	9/10/2016	24th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 59	31/10/2015	23rd Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 60	12/10/2014	22nd Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 61	13/10/2013	21st Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 62	7/10/2012	20th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 63	9/10/2011	19th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 64	10/10/2010	18th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 65	11/10/2009	17th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 66	12/10/2008	16th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 67	14/10/2007	15th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 68	8/10/2006	14th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 69	9/10/2005	13th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 70	10/10/2004	12th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 71	25/10/2003	11th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
72	12/10/2002	10th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
73	6/10/2001	9th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
74	21/9/2019	7. Vietnam Mountain Marathon 70km	70,00	—
75	25/8/2012	2nd Utsukushigahara 70 km Trail Run	70,00	—
76	22/8/2020	1st Toda Aya Lake Ultra Marathon	63,70	—