Katsumi (根釜勝美) Nekama

Born : 1975 Cat. M50 Ultrarunner since 2004

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

43,6%

Rank quotient ?This runner's calculation uses 75 eligible race(s): Σ(rank − 1) = 19 236; Σ finishers = 44 165. 19 236 / 44 165 × 100 = 43.55%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed76

Km — ultra races7 870 km

> 100 km12

> 160 km7

> 200 km7

Longest race254,0 km

15th River Road Foot Race 254 km — 3/5/2019

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road82,2%

Trail16,1%

Stage1,7%

Records

50 km4h32'21 100 km8h40'39 50 mi14h28'19

HISTORY

75 race(s) · 2 stage(s) nested

Date		Race	Perf.	Rk
2019
19.10	51.4km	10th Inagawa 100km Ultra-Marathon	6:47:20 h	283
07.10	100km	1st Fuji 4 Lakes 100 km Autumn Challenge	14:13:22 h	524
22.09	100km	29. Akita Nairiku 100km Marathon	12:59:10 h	588
19.05	100km	25th Yatsugatake Nobeyama 100 km	13:58:12 h	1551
12.05	100km	26th Ebisu-Daikoku 100 km Marathon	13:58:07 h	446
03.05	254km	15th River Road Foot Race 254 km	2d 09:50:58 h	63
21.04	100km	29th Fuji 5 Lakes 100 km Challenge	13:50:48 h	1365
16–17.03	136km/2stages	7th Arakawa Riverside Journey Stage Race	21:01:32 h	65
16.03	80km	7th Arakawa Riverside Journey Stage Race - Stage 1	12:10:47 h	116
17.03	56km	7th Arakawa Riverside Journey Stage Race - Stage 2	8:50:45 h	124
23.02	91km	9th Little Edo 91km	13:51:22 h	58
2018
21.10	100km	7th Noto Peninsula 100 km Ultra Marathon	12:15:52 h	123
16.09	60km	18th Tango 60 km Ultramarathon	7:04:36 h	142
09.09	100km	6th 100 km Ultramarathon Hakusan-Shirakawago	13:18:10 h	414
17.06	62km	2nd Nikko 62km Ultramarathon	7:15:47 h	121
10.06	71km	7th Hida Takayama 71 km Ultramarathon	7:52:30 h	74
20.05	71km	24th Yatsugatake Nobeyama 71 km	8:42:47 h	51
2017
21.05	100km	23rd Yatsugatake Nobeyama 100 km	12:08:46 h	303
02.05	250km	29. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	47:38:09 h	256
15.04	62km	3rd Okuizumo Ultra Orochi 60km Tooashi	7:36:43 h	30
2016
16.10	100km	5th Noto Peninsula 100 km Ultra Marathon	10:18:28 h	21
18.09	100km	19th Jonaizaka 100 km Ultra Marathon	11:49:01 h	15
11.09	100km	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	11:07:00 h	36
02.07	80km	6th Utsukushigahara 80 km Trail Run	14:28:19 h	292
19.06	100km	11. Okinoshima 100km Ultra Marathon	9:25:23 h	17
02.05	250km	28. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	45:53:21 h	163
24.04	70km	2nd Okumikawa Power Trail	12:25:05 h	369
2015
08.11	50km	7th Kanna Mountain Run	9:16:17 h	77
13.09	50km	3rd 50 km Ultramarathon Hakusan-Shirakawago	4:32:21 h	30
29.08	100km	KISO Great Traverse 100 km Ultra Marathon	11:45:26 h	77
18.07	100km	8th OSJ Ontake 100km Ultra Trail	13:57:11 h	212
28.06	100km	30. Lake Saroma 100 km Ultramarathon	8:40:39 h	122
31.05	100km	22nd Ebisu-Daikoku 100 km Marathon	9:53:05 h	50
02.05	250km	27. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	46:22:52 h	136
29.03	47km	1st Osaka Yodogawa 50 km Ultra Marathon	3:37:30 h	8
2014
22.11	60km	1st Kiso-Sansen 60 km Ultra-Marathon	4:58:29 h	25
28.09	100km	17th Muraoka 100 km Ultra Marathon	10:55:58 h	49
21.09	50km	2nd 50 km Ultramarathon Hakusan-Shirakawago	4:37:32 h	18
14.09	100km	5th Akiota Yajirushi Marathon 100km	10:47:49 h	36
08.06	72km	3rd Hida Takayama 72 km Ultramarathon	7:13:12 h	44
02.05	250km	26. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	47:33:54 h	266
20.04	100km	24th Fuji 5 Lakes 100 km Challenge	10:55:16 h	216
2013
20.10	60km	2nd Noto Peninsula 60 km Ultra Marathon	5:25:15 h	7
29.09	100km	1st 100 km Ultramarathon Hakusan-Shirakawago	11:48:08 h	142
15.09	88km	4th Akiota Yajirushi Marathon 88km	9:53:32 h	112
11.08	100km	3rd North Okhotsk 100 km Marathon	10:58:14 h	73
09.06	100km	2nd Hida Takayama 100 km Ultramarathon	12:27:47 h	366
19.05	71km	19th Yatsugatake Nobeyama 71 km	8:06:43 h	35
21.04	72km	23rd Fuji 5 Lakes 72 km Challenge	7:14:38 h	45
10.03	72km	1st Izu Trail Journey	13:42:58 h	1099
2012
06.10	100km	9th Echigo Kubikino 100km Ultramarathon	13:24:40 h	1067
05.08	77km	19. Ultramarathon Okumusashi	9:42:34 h	473
10.06	100km	1st Hida Takayama 100 km Ultramarathon	12:34:11 h	291
19.05	82km	1st Shizuoka to Yamanashi	24:04:56 h	897
22.04	112km	22nd Fuji 5 Lakes 112 km Challenge	13:57:28 h	335
03.03	91km	2nd Little Edo 91km	12:44:00 h	18
2011
25.09	100km	14th Muraoka 100 km Ultra Marathon	12:56:46 h	126
07.08	77km	18. Ultramarathon Okumusashi	9:45:46 h	557
17.07	100km	4th OSJ Ontake 100km Ultra Trail	14:43:25 h	148
22.05	100km	3rd 100 km Ultra Maranic Osaka	9:06:00 h	15
03.05	140km	23. Yamaguchi 100 Hagi-O-Kan Maranic 140 km	19:39:11 h	27
24.04	100km	13. Okukumano 100 km Ultramarathon	11:07:01 h	38
2010
19.09	88km	1st Akiota Yajirushi Marathon 88km	11:27:30 h	92
01.08	77km	17. Ultramarathon Okumusashi	9:36:43 h	387
27.06	100km	10th Nichinan Orochi 100 km Marathon	11:38:52 h	140
16.05	100km	16th Yatsugatake Nobeyama 100 km	13:33:49 h	769
02.05	250km	22. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	47:27:49 h	138
2009
11.10	71.5km	17th Hasetsune Cup - Japan Mountain Endurance Race	17:15:00 h	1007
21.09	100km	1st Shinetsu Five Mountains Trail 100km	18:18:51 h	198
14.06	100km	5th Iwate Ginga 100km Marathon Challenge	12:16:38 h	187
02.05	250km	21. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	47:24:02 h	191
2008
12.10	71.5km	16th Hasetsune Cup - Japan Mountain Endurance Race	17:45:22 h	1013
14.09	143km	11th Karisakatoge beyond Chichibu Run	23:16:06 h	60
2007
16.09	100km	7th Tango 100 km Ultramarathon	12:30:21 h	180
2005
16.10	100km	11th River Shimanto 100km	9:28:16 h	73
03.05	140km	17. Yamaguchi 100 Hagi-O-Kan Maranic 140 km	18:02:32 h	18
2004
17.10	100km	10th River Shimanto 100km	10:57:01 h	251

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	3/5/2019	15th River Road Foot Race 254 km	254,00	×3
✓ 2	2/5/2017	29. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 3	2/5/2016	28. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 4	2/5/2015	27. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 5	2/5/2014	26. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 6	2/5/2010	22. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 7	2/5/2009	21. Yamaguchi 100 Hagi-O-Kan Maranic 250 km	250,00	×3
✓ 8	14/9/2008	11th Karisakatoge beyond Chichibu Run	143,00	×1
✓ 9	3/5/2011	23. Yamaguchi 100 Hagi-O-Kan Maranic 140 km	140,00	×1
✓ 10	3/5/2005	17. Yamaguchi 100 Hagi-O-Kan Maranic 140 km	140,00	×1
✓ 11	16/3/2019	7th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 12	22/4/2012	22nd Fuji 5 Lakes 112 km Challenge	112,00	×1
✓ 13	7/10/2019	1st Fuji 4 Lakes 100 km Autumn Challenge	100,00	×1
✓ 14	22/9/2019	29. Akita Nairiku 100km Marathon	100,00	×1
✓ 15	19/5/2019	25th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 16	12/5/2019	26th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 17	21/4/2019	29th Fuji 5 Lakes 100 km Challenge	100,00	×1
✓ 18	21/10/2018	7th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 19	9/9/2018	6th 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 20	21/5/2017	23rd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 21	16/10/2016	5th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 22	18/9/2016	19th Jonaizaka 100 km Ultra Marathon	100,00	×1
✓ 23	11/9/2016	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	100,00	×1
✓ 24	19/6/2016	11. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 25	29/8/2015	KISO Great Traverse 100 km Ultra Marathon	100,00	×1
✓ 26	18/7/2015	8th OSJ Ontake 100km Ultra Trail	100,00	×1
✓ 27	28/6/2015	30. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 28	31/5/2015	22nd Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 29	28/9/2014	17th Muraoka 100 km Ultra Marathon	100,00	×1
✓ 30	14/9/2014	5th Akiota Yajirushi Marathon 100km	100,00	×1
✓ 31	20/4/2014	24th Fuji 5 Lakes 100 km Challenge	100,00	×1
✓ 32	29/9/2013	1st 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 33	11/8/2013	3rd North Okhotsk 100 km Marathon	100,00	×1
✓ 34	9/6/2013	2nd Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 35	6/10/2012	9th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 36	10/6/2012	1st Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 37	25/9/2011	14th Muraoka 100 km Ultra Marathon	100,00	×1
✓ 38	17/7/2011	4th OSJ Ontake 100km Ultra Trail	100,00	×1
✓ 39	22/5/2011	3rd 100 km Ultra Maranic Osaka	100,00	×1
✓ 40	24/4/2011	13. Okukumano 100 km Ultramarathon	100,00	×1
✓ 41	27/6/2010	10th Nichinan Orochi 100 km Marathon	100,00	×1
✓ 42	16/5/2010	16th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 43	21/9/2009	1st Shinetsu Five Mountains Trail 100km	100,00	×1
✓ 44	14/6/2009	5th Iwate Ginga 100km Marathon Challenge	100,00	×1
✓ 45	16/9/2007	7th Tango 100 km Ultramarathon	100,00	×1
✓ 46	16/10/2005	11th River Shimanto 100km	100,00	×1
✓ 47	17/10/2004	10th River Shimanto 100km	100,00	×1
✓ 48	23/2/2019	9th Little Edo 91km	91,00	×1
✓ 49	3/3/2012	2nd Little Edo 91km	91,00	×1
✓ 50	15/9/2013	4th Akiota Yajirushi Marathon 88km	88,00	×1
✓ 51	19/9/2010	1st Akiota Yajirushi Marathon 88km	88,00	×1
✓ 52	19/5/2012	1st Shizuoka to Yamanashi (STY)	82,00	×1
✓ 53	2/7/2016	6th Utsukushigahara 80 km Trail Run	80,00	×1
✓ 54	5/8/2012	19. Ultramarathon Okumusashi	77,00	×1
✓ 55	7/8/2011	18. Ultramarathon Okumusashi	77,00	×1
✓ 56	1/8/2010	17. Ultramarathon Okumusashi	77,00	×1
✓ 57	8/6/2014	3rd Hida Takayama 72 km Ultramarathon	72,00	×1
✓ 58	21/4/2013	23rd Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 59	10/3/2013	1st Izu Trail Journey	72,00	×1
✓ 60	11/10/2009	17th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 61	12/10/2008	16th Hasetsune Cup - Japan Mountain Endurance Race	71,50	—
✓ 62	10/6/2018	7th Hida Takayama 71 km Ultramarathon	71,00	—
✓ 63	20/5/2018	24th Yatsugatake Nobeyama 71 km	71,00	—
✓ 64	19/5/2013	19th Yatsugatake Nobeyama 71 km	71,00	—
✓ 65	24/4/2016	2nd Okumikawa Power Trail	70,00	—
66	17/6/2018	2nd Nikko 62km Ultramarathon	62,00	—
67	15/4/2017	3rd Okuizumo Ultra Orochi 60km Tooashi	62,00	—
68	16/9/2018	18th Tango 60 km Ultramarathon	60,00	—
69	22/11/2014	1st Kiso-Sansen 60 km Ultra-Marathon	60,00	—
70	20/10/2013	2nd Noto Peninsula 60 km Ultra Marathon	60,00	—
71	19/10/2019	10th Inagawa 100km Ultra-Marathon	51,40	—
72	8/11/2015	7th Kanna Mountain Run	50,00	—
73	13/9/2015	3rd 50 km Ultramarathon Hakusan-Shirakawago	50,00	—
74	21/9/2014	2nd 50 km Ultramarathon Hakusan-Shirakawago	50,00	—
75	29/3/2015	1st Osaka Yodogawa 50 km Ultra Marathon	47,00	—