Yutaka (沢藤豊) Sawafuji

Born : 1965 Cat. M60 Ultrarunner since 2011

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

21,3%

Rank quotient ?This runner's calculation uses 61 eligible race(s): Σ(rank − 1) = 5 666; Σ finishers = 26 565. 5 666 / 26 565 × 100 = 21.33%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed61

Km — ultra races6 619 km

> 100 km11

> 160 km5

> 200 km4

Longest race320,0 km

19th Nagasaki Tachibana Gulf Coast Super Maranic 320 — 21/11/2025

Km per year (ultra races)

483

2022

583

2023

737

2024

771

2025

2026

Race types (share of distance)

Road92,2%

Trail7,8%

Wins & podiums (ultra)

🏆 Win1

🏆 Win M1

🏅 Top 33

🏅 Top 3 M3

Longest winning streak1

Current streak0

Records

50 km7h13'21 100 km9h37'38 50 mi8h31'40

HISTORY

61 race(s)

Date		Race	Perf.	Rk
2025
21.11	320km	19th Nagasaki Tachibana Gulf Coast Super Maranic 320	2d 02:48:02 h	5
01.11	200km	9th Santo Ultra Maranic - Santo Course	32:31:00 h	7
15.06	100km	1st Shimanami Surround 100km	12:21:10 h	9
13.04	100km	4th Atsumi Peninsula Ultra Nature Run - 100km	13:15:05 h	36
06.04	51.4km	3rd AYABE Trailrun	8:22:10 h	177
2024
22.11	320km	18th Nagasaki Tachibana Gulf Coast Super Maranic 320	2d 08:49:34 h	13
06.10	100km	5th Mine Akiyoshidai Geopark Ultra Marathon	11:14:07 h	21
04.05	217km	18th Nagasaki Tachibana Gulf Coast Super Maranic 217	33:19:41 h	7
21.04	100km	15th 100 km Ultra Maranic Osaka	11:26:42 h	76
2023
17.12	100km	6th Okinawa 100km Ultramarathon	11:00:13 h	138
04.11	103km	17th Nagasaki Tachibana Gulf Coast Super Maranic 103	11:50:36 h	7
15.10	100km	5th Yasaka Ultra Marathon in Hamada - 100 km	11:50:54 h	10
17.09	100km	21th Tango 100 km Ultramarathon	11:37:15 h	147
27.05	80km	3rd Lake Suwa Ultra Marathon - 80 km	8:31:40 h	3 🥉
23.04	100km	2nd Suo-Oshima Ultra Marathon - 100 km	11:33:39 h	32
2022
27.11	80km	1st Kyokaido Ultra aranic - Kyoto	8:52:01 h	1 🏆
09.10	100km	14th Echigo Kubikino 100km Ultramarathon	10:56:17 h	174
17.07	100km	2nd Yamaguchi Hagi Return	14:04:49 h	30
28.05	103km	10th Tojinbo 103 km Ultramarathon	13:16:23 h	66
08.05	100km	26th 100 km Ultramarathon Ako Seaside Park	10:32:44 h	13
2020
09.08	120km	1st Osaka Natsunojin Kurondo Rondo - 120 km	26:35:59 h	9
2019
08.12	100km	2nd Tobishima Ultra Marathon	9:48:00 h	19
19.10	100km	4th Iki 100 km Ultra Marathon	9:49:32 h	19
22.09	100km	29. Akita Nairiku 100km Marathon	9:37:38 h	47
08.09	100km	7th 100 km Ultramarathon Hakusan-Shirakawago	10:43:32 h	50
09.06	84.39km	3rd JAL Mukatsuku Double Marathon	9:07:05 h	64
02.06	100km	2nd Nanto 100 km Ultramarathon	10:56:11 h	42
12.05	100km	26th Ebisu-Daikoku 100 km Marathon	11:31:24 h	123
2018
21.10	100km	24th River Shimanto 100km	9:51:54 h	136
23.09	100km	28. Akita Nairiku 100km Marathon	10:57:22 h	108
10.06	100km	7th Hida Takayama 100 km Ultramarathon	9:52:22 h	94
26.05	201km	10th Biwako Tourism Ultramannic 200 km	28:32:22 h	3 🥉
20.05	72km	23th Saba Highway Ultramarathon	7:42:46 h	59
14.04	52km	1st Osaka Nature Trail Grand Traverse 52	6:01:00 h	5
2017
15.10	100km	6th Noto Peninsula 100 km Ultra Marathon	10:10:25 h	27
24.09	120km	20th Muraoka 120 km Ultra Marathon	13:04:33 h	63
11.06	100km	6th Hida Takayama 100 km Ultramarathon	10:15:29 h	157
03.05	70km	25. Mukogawa Yurikamome Ultra Marathon	7:32:03 h	277
15.04	102km	3rd Okuizumo Ultra Orochi 100km Tooashi	12:23:59 h	97
2016
16.10	100km	5th Noto Peninsula 100 km Ultra Marathon	11:38:15 h	63
25.09	100km	19th Muraoka 100 km Ultra Marathon	10:36:26 h	30
11.09	100km	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	12:53:04 h	146
12.06	100km	5th Hida Takayama 100 km Ultramarathon	10:26:43 h	137
24.04	100km	18. Okukumano 100 km Ultramarathon	11:15:59 h	74
2015
29.11	50km	Kumano Old Trails	7:13:21 h	19
20.09	100km	15th Tango 100 km Ultramarathon	9:50:15 h	110
29.08	100km	KISO Great Traverse 100 km Ultra Marathon	12:12:19 h	93
06.06	100km	25th Aso Caldera Super Marathon 100 km	9:53:26 h	104
16.05	103km	4th Tojinbo 103 km Ultramarathon	12:13:09 h	33
29.03	100km	1st Osaka Yodogawa 100 km Ultra Marathon	10:16:33 h	120
2014
28.09	100km	24. Akita Nairiku 100km Marathon	9:55:35 h	87
27.04	100km	6th 100 km Ultra Maranic Osaka	12:23:41 h	153
12.01	100km	24th Miyako 100 km Ultramarathon	10:02:42 h	36
2013
20.10	100km	19th River Shimanto 100km	10:37:14 h	181
29.09	100km	1st 100 km Ultramarathon Hakusan-Shirakawago	11:34:37 h	117
21.04	100km	5th 100 km Ultra Maranic Osaka	11:06:26 h	94
2012
17.06	100km	7. Okinoshima 100km Ultra Marathon	11:48:51 h	78
20.05	100km	4th 100 km Ultra Maranic Osaka	12:24:33 h	154
03.05	70km	20. Mukogawa Yurikamome Ultra Marathon	7:36:39 h	222
2011
16.10	100km	17th River Shimanto 100km	13:45:20 h	927
18.09	100km	11th Tango 100 km Ultramarathon	13:12:26 h	378

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	21/11/2025	19th Nagasaki Tachibana Gulf Coast Super Maranic 320	320,00	×4
✓ 2	22/11/2024	18th Nagasaki Tachibana Gulf Coast Super Maranic 320	320,00	×4
✓ 3	4/5/2024	18th Nagasaki Tachibana Gulf Coast Super Maranic 217	217,00	×3
✓ 4	26/5/2018	10th Biwako Tourism Ultramannic 200 km	201,00	×2
✓ 5	1/11/2025	9th Santo Ultra Maranic - Santo Course	200,00	×2
✓ 6	9/8/2020	1st Osaka Natsunojin Kurondo Rondo - 120 km	120,00	×1
✓ 7	24/9/2017	20th Muraoka 120 km Ultra Marathon	120,00	×1
✓ 8	4/11/2023	17th Nagasaki Tachibana Gulf Coast Super Maranic 103	103,00	×1
✓ 9	28/5/2022	10th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 10	16/5/2015	4th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 11	15/4/2017	3rd Okuizumo Ultra Orochi 100km Tooashi	102,00	×1
✓ 12	15/6/2025	1st Shimanami Surround 100km	100,00	×1
✓ 13	13/4/2025	4th Atsumi Peninsula Ultra Nature Run - 100km	100,00	×1
✓ 14	6/10/2024	5th Mine Akiyoshidai Geopark Ultra Marathon	100,00	×1
✓ 15	21/4/2024	15th 100 km Ultra Maranic Osaka	100,00	×1
✓ 16	17/12/2023	6th Okinawa 100km Ultramarathon	100,00	×1
✓ 17	15/10/2023	5th Yasaka Ultra Marathon in Hamada - 100 km	100,00	×1
✓ 18	17/9/2023	21th Tango 100 km Ultramarathon	100,00	×1
✓ 19	23/4/2023	2nd Suo-Oshima Ultra Marathon - 100 km	100,00	×1
✓ 20	9/10/2022	14th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 21	17/7/2022	2nd Yamaguchi Hagi Return	100,00	×1
✓ 22	8/5/2022	26th 100 km Ultramarathon Ako Seaside Park	100,00	×1
✓ 23	8/12/2019	2nd Tobishima Ultra Marathon	100,00	×1
✓ 24	19/10/2019	4th Iki 100 km Ultra Marathon	100,00	×1
✓ 25	22/9/2019	29. Akita Nairiku 100km Marathon	100,00	×1
✓ 26	8/9/2019	7th 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 27	2/6/2019	2nd Nanto 100 km Ultramarathon	100,00	×1
✓ 28	12/5/2019	26th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 29	21/10/2018	24th River Shimanto 100km	100,00	×1
✓ 30	23/9/2018	28. Akita Nairiku 100km Marathon	100,00	×1
✓ 31	10/6/2018	7th Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 32	15/10/2017	6th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 33	11/6/2017	6th Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 34	16/10/2016	5th Noto Peninsula 100 km Ultra Marathon	100,00	×1
✓ 35	25/9/2016	19th Muraoka 100 km Ultra Marathon	100,00	×1
✓ 36	11/9/2016	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	100,00	×1
✓ 37	12/6/2016	5th Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 38	24/4/2016	18. Okukumano 100 km Ultramarathon	100,00	×1
✓ 39	20/9/2015	15th Tango 100 km Ultramarathon	100,00	×1
✓ 40	29/8/2015	KISO Great Traverse 100 km Ultra Marathon	100,00	×1
✓ 41	6/6/2015	25th Aso Caldera Super Marathon 100 km	100,00	×1
✓ 42	29/3/2015	1st Osaka Yodogawa 100 km Ultra Marathon	100,00	×1
✓ 43	28/9/2014	24. Akita Nairiku 100km Marathon	100,00	×1
✓ 44	27/4/2014	6th 100 km Ultra Maranic Osaka	100,00	×1
✓ 45	12/1/2014	24th Miyako 100 km Ultramarathon	100,00	×1
✓ 46	20/10/2013	19th River Shimanto 100km	100,00	×1
✓ 47	29/9/2013	1st 100 km Ultramarathon Hakusan-Shirakawago	100,00	×1
✓ 48	21/4/2013	5th 100 km Ultra Maranic Osaka	100,00	×1
✓ 49	17/6/2012	7. Okinoshima 100km Ultra Marathon	100,00	×1
✓ 50	20/5/2012	4th 100 km Ultra Maranic Osaka	100,00	×1
✓ 51	16/10/2011	17th River Shimanto 100km	100,00	×1
✓ 52	18/9/2011	11th Tango 100 km Ultramarathon	100,00	×1
✓ 53	9/6/2019	3rd JAL Mukatsuku Double Marathon	84,39	×1
✓ 54	27/5/2023	3rd Lake Suwa Ultra Marathon - 80 km	80,00	×1
✓ 55	27/11/2022	1st Kyokaido Ultra aranic - Kyoto	80,00	×1
✓ 56	20/5/2018	23th Saba Highway Ultramarathon	72,00	×1
✓ 57	3/5/2017	25. Mukogawa Yurikamome Ultra Marathon	70,00	×1
✓ 58	3/5/2012	20. Mukogawa Yurikamome Ultra Marathon	70,00	×1
59	14/4/2018	1st Osaka Nature Trail Grand Traverse 52	52,00	—
60	6/4/2025	3rd AYABE Trailrun	51,40	—
61	29/11/2015	Kumano Old Trails	50,00	—