Tsuneo (川杉恒夫) Kawasugi

Born : 1963 Cat. M60 Ultrarunner since 2009

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

8,4%

Rank quotient ?This runner's calculation uses 75 eligible race(s): Σ(rank − 1) = 2 181; Σ finishers = 25 958. 2 181 / 25 958 × 100 = 8.40%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed76

Km — ultra races8 480 km

> 100 km33

> 160 km12

> 200 km9

> 24h1

Longest race263,0 km

4th Michinoku Tsugaru Journey Run 263K — 13/7/2019

Km per year (ultra races)

389

2022

714

2023

506

2024

498

2025

160

2026

Race types (share of distance)

Road96,0%

Trail2,4%

Stage1,6%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 33

🏅 Top 3 M3

Longest winning streak0

Current streak0

Records

100 km8h58'20 100 mi23h42'54 12 h65,96 km 24 h177,64 km

HISTORY

75 race(s) · 2 stage(s) nested · 2 split(s) nested

Date		Race	Perf.	Rk
2026
14.06	100km	5. OSJ Aizu Bandaisan Ultramarathon - 100 km	11:34:42 h	46
11.04	60km	21st Toda Saiko 60 km	5:40:09 h	16
2025
19.10	70km	32. Ultramarathon Okumusashi	7:08:38 h	49
13.09	128km	8th Utsukushima Fukushima Journey Run 128K	19:21:02 h	13
07.06	100km	4. OSJ Aizu Bandaisan Ultramarathon - 100 km	10:40:14 h	39
15.03	200km	15th Little Edo Oedo 200k	29:47:08 h	41
2024
20.10	70km	31. Ultramarathon Okumusashi	6:41:03 h	37
15.09	128km	7th Utsukushima Fukushima Journey Run 128K	17:25:53 h	4
23.08	101km	11th World Cultural Heritage "Fuji" Foot Race	12:14:03 h	18
13.04	71km	19th Toda Saiko 70 km	6:13:52 h	17
16–17.03	136km/2stages	12th Arakawa Riverside Journey Stage Race	15:30:56 h	8
16.03	82km	12th Arakawa Riverside Journey Stage Race - Stage 1	9:34:47 h	19
17.03	54.2km	12th Arakawa Riverside Journey Stage Race - Stage 2	5:56:09 h	9
2023
19.11	64km	2. Minuma Challenge 60	7:23:59 h	13
17.09	127km	6th Utsukushima Fukushima Journey Run 127K	15:40:40 h	5
18.08	101km	10th World Cultural Heritage "Fuji" Foot Race	11:33:32 h	8
02.07	8h	29th 8-Hour Endurance Race Tokorozawa - 3 tai	73.500 km	10
21.05	100km	11th Tokyo Shibamata 100 km	8:58:20 h	40
08.04	71km	18th Toda Saiko 70 km	5:55:28 h	13
11.03	24h	15th Jingu Gaien 24 Hour Challenge	177.638 km	44
11.03	6h	15th Jingu Gaien 24 Hour Challenge - 6h Split	60.904 km	34
11.03	12h	15th Jingu Gaien 24 Hour Challenge -12h Split	108.568 km	38
2022
20.08	101km	9th World Cultural Heritage "Fuji" Foot Race	12:46:11 h	16
05.06	78km	29. Ultramarathon Okumusashi	7:49:33 h	117
02.04	155km	2nd Tone River Run Up Journey Run Downstream	20:34:00 h	7
22.03	55.4km	10th Arakawa Riverside Journey - 55.4 km	6:11:00 h	4
2021
30.10	146km	3rd Autumn leaves in Okumusashi / Chichibu Journey run	17:58:12 h	25
16.10	120km	1st Tone River Run Up Journey Run Upstream	15:02:00 h	6
09.10	155km	1st Tone River Run Up Journey Run Downstream	18:34:00 h	2 🥈
04.07	8h	27th 8-Hour Endurance Race Tokorozawa	88.200 km	19
2020
22.02	235km	10th Little Edo Oedo 235k	30:11:44 h	13
2019
17.08	101km	7th World Cultural Heritage "Fuji" Foot Race	11:08:20 h	4
13.07	263km	4th Michinoku Tsugaru Journey Run 263K	37:23:26 h	12
15.06	161.6km	1st Nikko Sennin Concentric Journey Run	23:42:54 h	12
02.06	78km	26. Ultramarathon Okumusashi	6:50:42 h	48
23.02	233km	9th Little Edo Oedo 230k	29:47:43 h	8
2018
19.08	101km	6th World Cultural Heritage "Fuji" Foot Race	10:56:00 h	4
14.07	263km	3rd Michinoku Tsugaru Journey Run 263K	36:33:36 h	4
03.06	78km	25. Ultramarathon Okumusashi	6:48:21 h	31
14.04	70km	13th Toda Saiko 70 km	5:35:08 h	19
03.03	233km	8th Little Edo Oedo 230k	28:44:54 h	4
2017
20.08	97km	5th World Cultural Heritage "Fuji" Foot Race	13:48:00 h	72
15.07	250km	2nd Michinoku Tsugaru Journey Run 250K	35:02:09 h	3 🥉
02.07	8h	23th 8-Hour Endurance Race Tokorozawa - 3 tai	45.444 km	77
04.06	78km	24. Ultramarathon Okumusashi	6:59:06 h	64
2016
18.09	144km	19th Karisakatoge beyond Chichibu Run	17:08:06 h	7
03.07	8h	22th 8-Hour Endurance Race Tokorozawa - 3 tai	71.412 km	14
05.06	78km	23. Ultramarathon Okumusashi	7:07:42 h	91
09.04	70km	11th Toda Saiko 70 km	6:02:41 h	16
05.03	204km	6th Little Edo Oedo 200k	24:49:32 h	7
2015
20.09	153km	18th Karisakatoge beyond Chichibu Run	18:36:36 h	7
18.07	100km	8th OSJ Ontake 100km Ultra Trail	12:37:11 h	73
12.07	8h	21th 8-Hour Endurance Race Tokorozawa - 3 tai	59.274 km	52
22.06	77km	22. Ultramarathon Okumusashi	7:21:59 h	116
2014
14.09	142km	17th Karisakatoge beyond Chichibu Run	17:08:43 h	12
27.07	77km	21. Ultramarathon Okumusashi	7:48:22 h	75
06.07	8h	20th 8-Hour Endurance Race Tokorozawa - 3 tai	74.658 km	15
12.04	70km	9th Toda Saiko 70 km	6:04:23 h	15
2013
15.09	142km	16th Karisakatoge beyond Chichibu Run	17:25:03 h	13
28.07	77km	20. Ultramarathon Okumusashi	7:08:41 h	71
07.07	8h	19th 8-Hour Endurance Race Tokorozawa - 3 tai	68.166 km	18
13.04	70km	8th Toda Saiko 70 km	5:49:26 h	12
02.03	203km	3rd Little Edo Oedo 200k	24:16:46 h	2 🥈
2012
16.09	143km	15th Karisakatoge beyond Chichibu Run	17:35:42 h	11
05.08	77km	19. Ultramarathon Okumusashi	7:35:48 h	90
08.07	8h	18th 8-Hour Endurance Race Tokorozawa - 3 tai	74.658 km	24
22.04	112km	22nd Fuji 5 Lakes 112 km Challenge	11:09:24 h	59
07.04	70km	7th Toda Saiko 70 km	6:09:42 h	10
03.03	203km	2nd Little Edo Oedo 200k	25:17:23 h	6
2011
07.08	77km	18. Ultramarathon Okumusashi	7:47:39 h	132
10.07	8h	17th 8-Hour Endurance Race Tokorozawa - 3 tai	64.920 km	20
21.05	12h	1st 12 hour Tokorozawa	65.962 km	65
30.04	112km	21st Fuji 5 Lakes 112 km Challenge	10:46:17 h	32
09.04	70km	6th Toda Saiko 70 km	5:57:38 h	16
2010
17.09	143km	12th Karisakatoge beyond Chichibu Run	18:19:55 h	9
01.08	77km	17. Ultramarathon Okumusashi	7:22:03 h	65
04.07	8h	16th 8-Hour Endurance Race Tokorozawa - 3 tai	74.658 km	8
25.04	72km	20th Fuji 5 Lakes 72 km Challenge	7:13:41 h	35
2009
19.07	100km	2nd OSJ Ontake 100km Ultra Trail	13:08:59 h	66

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	13/7/2019	4th Michinoku Tsugaru Journey Run 263K	263,00	×3
✓ 2	14/7/2018	3rd Michinoku Tsugaru Journey Run 263K	263,00	×3
✓ 3	15/7/2017	2nd Michinoku Tsugaru Journey Run 250K	250,00	×3
✓ 4	22/2/2020	10th Little Edo Oedo 235k	235,00	×3
✓ 5	23/2/2019	9th Little Edo Oedo 230k	233,00	×3
✓ 6	3/3/2018	8th Little Edo Oedo 230k	233,00	×3
✓ 7	5/3/2016	6th Little Edo Oedo 200k	204,00	×2
✓ 8	2/3/2013	3rd Little Edo Oedo 200k	203,00	×2
✓ 9	3/3/2012	2nd Little Edo Oedo 200k	203,00	×2
✓ 10	15/3/2025	15th Little Edo Oedo 200k	200,00	×2
✓ 11	11/3/2023	15th Jingu Gaien 24 Hour Challenge	177,64	×2
✓ 12	15/6/2019	1st Nikko Sennin Concentric Journey Run	161,60	×2
✓ 13	2/4/2022	2nd Tone River Run Up Journey Run Downstream	155,00	×2
✓ 14	9/10/2021	1st Tone River Run Up Journey Run Downstream	155,00	×2
✓ 15	20/9/2015	18th Karisakatoge beyond Chichibu Run	153,00	×2
✓ 16	30/10/2021	3rd Autumn leaves in Okumusashi / Chichibu Journey run	146,00	×1
✓ 17	18/9/2016	19th Karisakatoge beyond Chichibu Run	144,00	×1
✓ 18	16/9/2012	15th Karisakatoge beyond Chichibu Run	143,00	×1
✓ 19	17/9/2010	12th Karisakatoge beyond Chichibu Run	143,00	×1
✓ 20	14/9/2014	17th Karisakatoge beyond Chichibu Run	142,00	×1
✓ 21	15/9/2013	16th Karisakatoge beyond Chichibu Run	142,00	×1
✓ 22	16/3/2024	12th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 23	13/9/2025	8th Utsukushima Fukushima Journey Run 128K	128,00	×1
✓ 24	15/9/2024	7th Utsukushima Fukushima Journey Run 128K	128,00	×1
✓ 25	17/9/2023	6th Utsukushima Fukushima Journey Run 127K	127,00	×1
✓ 26	16/10/2021	1st Tone River Run Up Journey Run Upstream	120,00	×1
✓ 27	22/4/2012	22nd Fuji 5 Lakes 112 km Challenge	112,00	×1
✓ 28	30/4/2011	21st Fuji 5 Lakes 112 km Challenge	112,00	×1
✓ 29	23/8/2024	11th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 30	18/8/2023	10th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 31	20/8/2022	9th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 32	17/8/2019	7th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 33	19/8/2018	6th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 34	14/6/2026	5. OSJ Aizu Bandaisan Ultramarathon - 100 km	100,00	×1
✓ 35	7/6/2025	4. OSJ Aizu Bandaisan Ultramarathon - 100 km	100,00	×1
✓ 36	21/5/2023	11th Tokyo Shibamata 100 km	100,00	×1
✓ 37	18/7/2015	8th OSJ Ontake 100km Ultra Trail	100,00	×1
✓ 38	19/7/2009	2nd OSJ Ontake 100km Ultra Trail	100,00	×1
✓ 39	20/8/2017	5th World Cultural Heritage "Fuji" Foot Race	97,00	×1
✓ 40	4/7/2021	27th 8-Hour Endurance Race Tokorozawa	88,20	×1
✓ 41	5/6/2022	29. Ultramarathon Okumusashi	78,00	×1
✓ 42	2/6/2019	26. Ultramarathon Okumusashi	78,00	×1
✓ 43	3/6/2018	25. Ultramarathon Okumusashi	78,00	×1
✓ 44	4/6/2017	24. Ultramarathon Okumusashi	78,00	×1
✓ 45	5/6/2016	23. Ultramarathon Okumusashi	78,00	×1
✓ 46	22/6/2015	22. Ultramarathon Okumusashi	77,00	×1
✓ 47	27/7/2014	21. Ultramarathon Okumusashi	77,00	×1
✓ 48	28/7/2013	20. Ultramarathon Okumusashi	77,00	×1
✓ 49	5/8/2012	19. Ultramarathon Okumusashi	77,00	×1
✓ 50	7/8/2011	18. Ultramarathon Okumusashi	77,00	×1
✓ 51	1/8/2010	17. Ultramarathon Okumusashi	77,00	×1
✓ 52	6/7/2014	20th 8-Hour Endurance Race Tokorozawa - 3 tai	74,66	×1
✓ 53	8/7/2012	18th 8-Hour Endurance Race Tokorozawa - 3 tai	74,66	×1
✓ 54	4/7/2010	16th 8-Hour Endurance Race Tokorozawa - 3 tai	74,66	×1
✓ 55	2/7/2023	29th 8-Hour Endurance Race Tokorozawa - 3 tai	73,50	—
✓ 56	25/4/2010	20th Fuji 5 Lakes 72 km Challenge	72,00	—
✓ 57	3/7/2016	22th 8-Hour Endurance Race Tokorozawa - 3 tai	71,41	—
✓ 58	13/4/2024	19th Toda Saiko 70 km	71,00	—
✓ 59	8/4/2023	18th Toda Saiko 70 km	71,00	—
✓ 60	19/10/2025	32. Ultramarathon Okumusashi	70,00	—
✓ 61	20/10/2024	31. Ultramarathon Okumusashi	70,00	—
✓ 62	14/4/2018	13th Toda Saiko 70 km	70,00	—
✓ 63	9/4/2016	11th Toda Saiko 70 km	70,00	—
✓ 64	12/4/2014	9th Toda Saiko 70 km	70,00	—
✓ 65	13/4/2013	8th Toda Saiko 70 km	70,00	—
✓ 66	7/4/2012	7th Toda Saiko 70 km	70,00	—
✓ 67	9/4/2011	6th Toda Saiko 70 km	70,00	—
✓ 68	7/7/2013	19th 8-Hour Endurance Race Tokorozawa - 3 tai	68,17	—
69	21/5/2011	1st 12 hour Tokorozawa	65,96	—
70	10/7/2011	17th 8-Hour Endurance Race Tokorozawa - 3 tai	64,92	—
71	19/11/2023	2. Minuma Challenge 60	64,00	—
72	11/4/2026	21st Toda Saiko 60 km	60,00	—
73	12/7/2015	21th 8-Hour Endurance Race Tokorozawa - 3 tai	59,27	—
74	22/3/2022	10th Arakawa Riverside Journey - 55.4 km	55,40	—
75	2/7/2017	23th 8-Hour Endurance Race Tokorozawa - 3 tai	45,44	—