Kazuto (佐藤和人) Sato

Born : 1971 Cat. M55 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 ?

Spain

France

Hong Kong

Italy

Japan

Switzerland

29,2%

Rank quotient ?This runner's calculation uses 75 eligible race(s): Σ(rank − 1) = 14 561; Σ finishers = 49 883. 14 561 / 49 883 × 100 = 29.19%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed76

Km — ultra races6 819 km

> 100 km29

> 160 km4

Longest race175,0 km

1st Reiheishi Michi Kyoto to Nikko - 175 km — 28/4/2022

Km per year (ultra races)

879

2022

763

2023

122

2024

2025

2026

Race types (share of distance)

Road26,2%

Trail70,3%

Stage1,6%

Ult.Walk1,8%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 31

🏅 Top 3 M1

Longest winning streak0

Current streak0

Records

50 km6h39'23 100 km10h54'50 50 mi11h44'01 100 mi33h22'14

HISTORY

75 race(s)

Date		Race	Perf.	Rk
2024
13.10	71.5km	32th Hasetsune Cup - Japan Mountain Endurance Race	9:57:59 h	50
25.05	50km	3rd Tokyo Grand Trail - 50km	10:52:27 h	21
2023
03.12	51.4km	11th Trainic world Ogose-Tokigawa Trail Run 50km	6:58:38 h	20
08.10	71.5km	31th Hasetsune Cup - Japan Mountain Endurance Race	11:58:30 h	211
10.09	54km	1st Around Toki River	10:41:27 h	63
29.08	145km	13ème Sur les Traces des Ducs de Savoie	38:00:34 h	552
09.07	75km	1st Mt. Gassan Foot Ultra Marathon	9:24:56 h	43
17.06	105km	1st Okumusashi Long Trail Race 105K	33:30:44 h	160
20.05	100mi	8th Trainic World 100 Mile in Sai-No-Kuni	33:22:14 h	65
15.04	100km	2nd Yagurazawa Round Trip Pre-Tournament	15:51:09 h	8
2022
06.11	50km	6th Koshu Alps Lily Route Challenge	8:43:17 h	32
30.10	49.6km	10th Trainic world Ogose-Tokigawa Trail Run 50km	7:45:14 h	54
09.10	71.5km	30th Hasetsune Cup - Japan Mountain Endurance Race	14:09:32 h	321
20.08	101km	9th World Cultural Heritage "Fuji" Foot Race	12:34:21 h	12
16.07	106.5km	14th OSJ Ontake 100km Ultra Trail	15:50:55 h	355
11.06	100.8km	2nd Okushinano 100	17:48:11 h	256
21.05	109.2km	7th Trainic World 100 km in Sai-No-Kuni	24:33:57 h	80
28.04	175km	1st Reiheishi Michi Kyoto to Nikko - 175 km	42:10:00 h	3 🥉
12.03	115km	12th Oedo Night run 115k	16:54:09 h	36
2021
20.11	106km	7th FunTrails100K Round	22:11:02 h	138
07.11	67km	5th Koshu Alps Haute Route Challenge	13:49:12 h	138
25.09	54km	8th Shigakogen Extreme Trail	9:51:44 h	104
28.08	75km	1st Okushinano 100 - 75 km	12:20:42 h	196
12.06	125km	5th Fujisan Issyu Walking	22:44:29 h	22
24.04	104km	4th Lake Kasumigaura Ultra Run	26:14:16 h	51
2019
11.05	106km	4th Trainic World 100 km in Sai-No-Kuni	24:35:25 h	60
13.01	100km	4th Yakushima Ultramarathon	12:23:32 h	24
2018
07.10	71.5km	26th Hasetsune Cup - Japan Mountain Endurance Race	17:52:02 h	709
31.08	171km	16ème Ultra Trail Tour du Mont Blanc	45:06:45 h	1485
30.06	8h	24th 8-Hour Endurance Race Tokorozawa	53.900 km	142
19.05	106km	3rd Trainic World 100 km in Sai-No-Kuni	25:30:22 h	126
02.03	100km	7th TransLantau 100 Ultra Trail	26:05:20 h	210
2017
08.10	71.5km	25th Hasetsune Cup - Japan Mountain Endurance Race	15:34:46 h	644
20.08	97km	5th World Cultural Heritage "Fuji" Foot Race	12:47:00 h	34
02.07	100km	1st Nikko 100km Ultramarathon	13:14:37 h	669
23.04	60km	2nd Tamagawa Ultra Marathon - 60 km	6:08:46 h	7
24.02	125km	Transgrancanaria 125 km	27:32:49 h	412
2016
19.11	105km	2nd FunTrails100K Round	22:44:57 h	94
06.11	55km	1st Myoko Ultra Run rAce 18	5:31:44 h	13
09.10	71.5km	24th Hasetsune Cup - Japan Mountain Endurance Race	12:22:11 h	235
11.09	129km	3rd SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup	30:24:30 h	201
16.07	101km	4. Eiger Ultra Trail 101 km	18:45:46 h	152
26.06	72.7km	3. Spatrail - Shima to Kusatsu	9:53:15 h	87
12.06	100km	5th Hida Takayama 100 km Ultramarathon	11:13:08 h	256
28.05	50km	2nd Mt. Hiei Int. 50 km Trail Run	8:11:51 h	203
22.05	100km	22nd Yatsugatake Nobeyama 100 km	11:12:47 h	203
24.04	70km	2nd Okumikawa Power Trail	10:49:15 h	156
23.01	100km	6th Hong Kong 100 Ultra Trail Race	15:08:25 h	134
2015
21.11	104km	1st FunTrails100K Round	21:59:36 h	72
31.10	71.5km	23rd Hasetsune Cup - Japan Mountain Endurance Race	10:56:14 h	218
22.09	110km	7th Shinetsu Five Mountains Trail 110km	15:10:58 h	70
06.09	49.6km	4th Trainic world Ogose-Tokigawa Trail Run 50km	6:39:23 h	22
18.07	101km	3. Eiger Ultra Trail 101 km	20:23:41 h	282
22.06	77km	22. Ultramarathon Okumusashi	7:36:15 h	164
17.05	100km	21st Yatsugatake Nobeyama 100 km	10:54:50 h	188
19.04	118km	25th Fuji 5 Lakes 118 km Challenge	12:48:21 h	110
28.02	112km	5th Oedo Night run 112k	14:47:34 h	16
2014
12.10	71.5km	22nd Hasetsune Cup - Japan Mountain Endurance Race	11:54:54 h	320
20.09	120km	1st SkyView Ultra-Trail - Yamada Noboru Memorial Cup	26:54:09 h	193
27.08	119km	5ème Sur les Traces des Ducs de Savoie	29:33:08 h	678
15.06	81.4km	1. Spatrail - Shima to Kusatsu	11:44:01 h	122
08.06	72km	3rd Hida Takayama 72 km Ultramarathon	7:35:06 h	60
18.05	100km	20th Yatsugatake Nobeyama 100 km	11:46:50 h	286
25.04	100mi	3rd Ultra-Trail Mt. Fuji	37:16:50 h	258
2013
13.10	71.5km	21st Hasetsune Cup - Japan Mountain Endurance Race	12:03:26 h	280
29.09	50km	3rd SkyView Ultra-Trail	7:44:25 h	64
15.09	110km	5th Shinetsu Five Mountains Trail 110km	16:28:43 h	90
14.07	110km/2stages	1st Mt. Taisetsu Trail Journey 110 km Stage Race	16:03:11 h	25
09.06	100km	2nd Hida Takayama 100 km Ultramarathon	12:44:24 h	440
26.04	84km	2nd Shizuoka to Yamanashi	14:45:05 h	106
10.03	72km	1st Izu Trail Journey	10:13:43 h	229
2012
07.10	71.5km	20th Hasetsune Cup - Japan Mountain Endurance Race	15:38:45 h	820
30.09	50km	2nd SkyView Ultra-Trail	8:55:40 h	122
16.09	50km	2nd Hakuba Int. Trail Run	7:21:45 h	92
10.06	72km	1st Hida Takayama 72 km Ultramarathon	8:44:56 h	62

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	28/4/2022	1st Reiheishi Michi Kyoto to Nikko - 175 km	175,00	×2
✓ 2	31/8/2018	16ème Ultra Trail Tour du Mont Blanc (UTMB)	171,00	×2
✓ 3	20/5/2023	8th Trainic World 100 Mile in Sai-No-Kuni	160,93	×2
✓ 4	25/4/2014	3rd Ultra-Trail Mt. Fuji (UTMF)	160,93	×2
✓ 5	29/8/2023	13ème Sur les Traces des Ducs de Savoie (TDS)	145,00	×2
✓ 6	11/9/2016	3rd SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup	129,00	×1
✓ 7	12/6/2021	5th Fujisan Issyu Walking	125,00	×1
✓ 8	24/2/2017	Transgrancanaria 125 km	125,00	×1
✓ 9	20/9/2014	1st SkyView Ultra-Trail - Yamada Noboru Memorial Cup	120,00	×1
✓ 10	27/8/2014	5ème Sur les Traces des Ducs de Savoie (TDS)	119,00	×1
✓ 11	19/4/2015	25th Fuji 5 Lakes 118 km Challenge	118,00	×1
✓ 12	12/3/2022	12th Oedo Night run 115k	115,00	×1
✓ 13	28/2/2015	5th Oedo Night run 112k	112,00	×1
✓ 14	22/9/2015	7th Shinetsu Five Mountains Trail 110km	110,00	×1
✓ 15	15/9/2013	5th Shinetsu Five Mountains Trail 110km	110,00	×1
✓ 16	14/7/2013	1st Mt. Taisetsu Trail Journey 110 km Stage Race	110,00	×1
✓ 17	21/5/2022	7th Trainic World 100 km in Sai-No-Kuni	109,20	×1
✓ 18	16/7/2022	14th OSJ Ontake 100km Ultra Trail	106,50	×1
✓ 19	20/11/2021	7th FunTrails100K Round	106,00	×1
✓ 20	11/5/2019	4th Trainic World 100 km in Sai-No-Kuni	106,00	×1
✓ 21	19/5/2018	3rd Trainic World 100 km in Sai-No-Kuni	106,00	×1
✓ 22	17/6/2023	1st Okumusashi Long Trail Race 105K	105,00	×1
✓ 23	19/11/2016	2nd FunTrails100K Round	105,00	×1
✓ 24	24/4/2021	4th Lake Kasumigaura Ultra Run	104,00	×1
✓ 25	21/11/2015	1st FunTrails100K Round	104,00	×1
✓ 26	20/8/2022	9th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 27	16/7/2016	4. Eiger Ultra Trail 101 km	101,00	×1
✓ 28	18/7/2015	3. Eiger Ultra Trail 101 km	101,00	×1
✓ 29	11/6/2022	2nd Okushinano 100	100,80	×1
✓ 30	15/4/2023	2nd Yagurazawa Round Trip Pre-Tournament	100,00	×1
✓ 31	13/1/2019	4th Yakushima Ultramarathon	100,00	×1
✓ 32	2/3/2018	7th TransLantau 100 Ultra Trail	100,00	×1
✓ 33	2/7/2017	1st Nikko 100km Ultramarathon	100,00	×1
✓ 34	12/6/2016	5th Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 35	22/5/2016	22nd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 36	23/1/2016	6th Hong Kong 100 Ultra Trail Race	100,00	×1
✓ 37	17/5/2015	21st Yatsugatake Nobeyama 100 km	100,00	×1
✓ 38	18/5/2014	20th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 39	9/6/2013	2nd Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 40	20/8/2017	5th World Cultural Heritage "Fuji" Foot Race	97,00	×1
✓ 41	26/4/2013	2nd Shizuoka to Yamanashi (STY)	84,00	×1
✓ 42	15/6/2014	1. Spatrail - Shima to Kusatsu	81,40	×1
✓ 43	22/6/2015	22. Ultramarathon Okumusashi	77,00	×1
✓ 44	9/7/2023	1st Mt. Gassan Foot Ultra Marathon	75,00	×1
✓ 45	28/8/2021	1st Okushinano 100 - 75 km	75,00	×1
✓ 46	26/6/2016	3. Spatrail - Shima to Kusatsu	72,70	×1
✓ 47	8/6/2014	3rd Hida Takayama 72 km Ultramarathon	72,00	×1
✓ 48	10/3/2013	1st Izu Trail Journey	72,00	×1
✓ 49	10/6/2012	1st Hida Takayama 72 km Ultramarathon	72,00	×1
✓ 50	13/10/2024	32th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 51	8/10/2023	31th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 52	9/10/2022	30th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 53	7/10/2018	26th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 54	8/10/2017	25th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 55	9/10/2016	24th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 56	31/10/2015	23rd Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 57	12/10/2014	22nd Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 58	13/10/2013	21st Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 59	7/10/2012	20th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 60	24/4/2016	2nd Okumikawa Power Trail	70,00	×1
✓ 61	7/11/2021	5th Koshu Alps Haute Route Challenge	67,00	×1
62	23/4/2017	2nd Tamagawa Ultra Marathon - 60 km	60,00	—
63	6/11/2016	1st Myoko Ultra Run rAce 18	55,00	—
64	10/9/2023	1st Around Toki River	54,00	—
65	25/9/2021	8th Shigakogen Extreme Trail	54,00	—
66	30/6/2018	24th 8-Hour Endurance Race Tokorozawa	53,90	—
67	3/12/2023	11th Trainic world Ogose-Tokigawa Trail Run 50km	51,40	—
68	25/5/2024	3rd Tokyo Grand Trail - 50km	50,00	—
69	6/11/2022	6th Koshu Alps Lily Route Challenge	50,00	—
70	28/5/2016	2nd Mt. Hiei Int. 50 km Trail Run	50,00	—
71	29/9/2013	3rd SkyView Ultra-Trail	50,00	—
72	30/9/2012	2nd SkyView Ultra-Trail	50,00	—
73	16/9/2012	2nd Hakuba Int. Trail Run	50,00	—
74	30/10/2022	10th Trainic world Ogose-Tokigawa Trail Run 50km	49,60	—
75	6/9/2015	4th Trainic world Ogose-Tokigawa Trail Run 50km	49,60	—