Kouji (今村公治) Imamura

Born : 1979 Cat. M45 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

12,8%

Rank quotient ?This runner's calculation uses 72 eligible race(s): Σ(rank − 1) = 4 701; Σ finishers = 36 858. 4 701 / 36 858 × 100 = 12.75%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed72

Km — ultra races10 316 km

> 100 km44

> 160 km26

> 200 km14

Longest race276,0 km

Tachibana Bay Coast 273 Ultra Marathon — 1/11/2019

Km per year (ultra races)

430

2022

638

2023

413

2024

591

2025

115

2026

Race types (share of distance)

Road77,1%

Trail22,9%

Wins & podiums (ultra)

🏆 Win3

🏆 Win M4

🏅 Top 39

🏅 Top 3 M10

Longest winning streak1

Current streak0

Records

100 km8h05'38

HISTORY

72 race(s)

Date		Race	Perf.	Rk
2026
14.03	115km	16th Oedo Night run 115k	16:44:32 h	45
2025
21.11	103km	19th Nagasaki Tachibana Gulf Coast Super Maranic 103	16:38:28 h	83
25.10	200km	12th Setouchi Angya - 200 km	34:57:00 h	21
04.05	173km	19th Nagasaki Tachibana Gulf Coast Super Maranic 173	29:38:07 h	34
15.03	115km	15th Oedo Night run 115k	17:52:36 h	37
2024
24.11	103km	18th Nagasaki Tachibana Gulf Coast Super Maranic 103	16:22:08 h	50
26.10	200km	11th Setouchi Angya - 200 km	37:34:00 h	19
20.04	110km	30. Sakura Michi Kokusai Nature Run (Half)	12:12:00 h	26
2023
25.06	100km	38. Lake Saroma 100 km Ultramarathon	10:30:06 h	424
03.05	173km	17th Nagasaki Tachibana Gulf Coast Super Maranic 173	26:26:02 h	5
21.04	250km	29. Sakura Michi Kokusai Nature Run	34:56:00 h	31
11.03	115km	13th Oedo Night run 115k	14:36:13 h	9
2022
29.10	230km	9th Setouchi Angya - 230 km	36:40:00 h	13
12.03	200km	12th Little Edo Oedo 200k	30:47:02 h	51
2021
06.11	230km	8th Setouchi Angya 2021 - 230 km	36:52:00 h	18
10.04	150km	4th Lake Biwa Kaizu Sakura Maranic - 150 km	25:47:00 h	16
27.02	200km	11th Little Edo Oedo 200k	29:42:46 h	37
2020
22.02	115km	10th Oedo Night run 115k	12:46:44 h	3 🥉
2019
07.12	200km	4th Santo Ultra Maranic - Santo Course	29:56:00 h	2 🥈
01.11	276km	Tachibana Bay Coast 273 Ultra Marathon	46:33:35 h	1 🏆
30.06	100km	34. Lake Saroma 100 km Ultramarathon	9:49:23 h	334
25.05	103km	8th Tojinbo 103 km Ultramarathon	12:32:22 h	19
04.05	173km	13th Nagasaki Tachibana Gulf Coast Super Maranic 173	27:46:49 h	19
20.04	250km	26. Sakura Michi Kokusai Nature Run	33:32:00 h	53
23.02	113km	9th Oedo Night run 113k	12:44:34 h	3 🥉
2018
01.12	200km	3rd Santo Ultra Maranic - Santo Course	29:58:00 h	2 🥈
24.06	100km	33. Lake Saroma 100 km Ultramarathon	9:24:42 h	250
26.05	103km	7th Tojinbo 103 km Ultramarathon	11:46:46 h	20
04.05	217km	12th Nagasaki Tachibana Gulf Coast Super Maranic 217	31:12:17 h	17
21.04	250km	25. Sakura Michi Kokusai Nature Run	29:35:00 h	7
03.03	113km	8th Oedo Night run 113k	12:43:24 h	4
2017
02.12	200km	2nd Santo Ultra Maranic - Santo Course	27:33:00 h	1 🏆
25.06	100km	32. Lake Saroma 100 km Ultramarathon	9:25:37 h	201
04.06	78km	24. Ultramarathon Okumusashi	7:36:58 h	130
04.05	173km	11th Nagasaki Tachibana Gulf Coast Super Maranic 173	25:32:46 h	19
22.04	250km	24. Sakura Michi Kokusai Nature Run	33:07:20 h	43
04.03	113km	7th Oedo Night run 113k	13:47:25 h	9
08.01	100km	2nd Yakushima Ultramarathon	11:38:00 h	8
2016
03.12	200km	1st Santo Ultra Maranic (Three City Miyako Course)	28:32:00 h	2 🥈
04.11	103km	Tachibana Bay Coast 100 Ultra Marathon	12:39:35 h	17
26.06	100km	31. Lake Saroma 100 km Ultramarathon	9:05:42 h	194
05.06	78km	23. Ultramarathon Okumusashi	8:08:32 h	281
05.03	113km	6th Oedo Night run 113k	12:37:35 h	2 🥈
09.01	100km	1st Yakushima Ultramarathon	10:21:52 h	1 🏆
2015
27.09	100km	18th Muraoka 100 km Ultra Marathon	11:32:37 h	71
22.06	77km	22. Ultramarathon Okumusashi	7:48:53 h	207
17.05	77km	Saba Highway Ultramarathon	8:50:08 h	61
26.04	65km	17. Okukumano 65 km Ultramarathon	7:28:05 h	31
18.04	250km	22. Sakura Michi Kokusai Nature Run	30:43:13 h	18
28.02	112km	5th Oedo Night run 112k	13:27:24 h	9
2014
28.09	66km	17th Muraoka 66 km Ultra Marathon	8:19:08 h	64
29.06	100km	29. Lake Saroma 100 km Ultramarathon	9:13:43 h	104
18.05	77km	Saba Highway Ultramarathon	8:17:49 h	29
18.04	250km	21. Sakura Michi Kokusai Nature Run	32:59:53 h	36
01.03	112km	4th Oedo Night run 112k	14:55:31 h	9
2013
29.09	88km	16th Muraoka 88 km Ultra Marathon	9:13:57 h	9
28.07	77km	20. Ultramarathon Okumusashi	9:01:22 h	435
30.06	100km road race	28. Lake Saroma 100 km Ultramarathon	9:35:09 h	213
19.04	250km	20. Sakura Michi Kokusai Nature Run	32:30:00 h	20
2012
30.09	66km	15th Muraoka 66 km Ultra Marathon	6:09:11 h	4
23.09	100km	22. Akita Nairiku 100km Marathon	8:44:18 h	22
24.06	100km road race	27. Lake Saroma 100 km Ultramarathon	8:05:38 h	37
21.04	250km	19. Sakura Michi Kokusai Nature Run	35:39:00 h	74
03.03	111km	2nd Oedo Night run 111k	15:31:20 h	11
2011
25.09	100km	21. Akita Nairiku 100km Marathon	8:11:43 h	9
26.06	100km road race	26. Lake Saroma 100 km Ultramarathon	8:07:41 h	37
22.05	100km	3rd 100 km Ultra Maranic Osaka	9:26:00 h	19
16.04	250km	18. Sakura Michi Kokusai Nature Run	34:39:00 h	56
2010
19.09	100km	10th Tango 100 km Ultramarathon	8:50:48 h	15
27.06	100km	25. Lake Saroma 100 km Ultramarathon	8:33:14 h	46
17.04	250km	17. Sakura Michi Kokusai Nature Run	35:44:00 h	75
2009
20.09	100km	9th Tango 100 km Ultramarathon	13:16:21 h	491

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	1/11/2019	Tachibana Bay Coast 273 Ultra Marathon	276,00	×3
✓ 2	21/4/2023	29. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 3	20/4/2019	26. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 4	21/4/2018	25. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 5	22/4/2017	24. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 6	18/4/2015	22. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 7	18/4/2014	21. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 8	19/4/2013	20. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 9	21/4/2012	19. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 10	16/4/2011	18. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 11	17/4/2010	17. Sakura Michi Kokusai Nature Run	250,00	×2
✓ 12	29/10/2022	9th Setouchi Angya - 230 km	230,00	×2
✓ 13	6/11/2021	8th Setouchi Angya 2021 - 230 km	230,00	×2
✓ 14	4/5/2018	12th Nagasaki Tachibana Gulf Coast Super Maranic 217	217,00	×2
✓ 15	25/10/2025	12th Setouchi Angya - 200 km	200,00	×2
✓ 16	26/10/2024	11th Setouchi Angya - 200 km	200,00	×2
✓ 17	12/3/2022	12th Little Edo Oedo 200k	200,00	×2
✓ 18	27/2/2021	11th Little Edo Oedo 200k	200,00	×2
✓ 19	7/12/2019	4th Santo Ultra Maranic - Santo Course	200,00	×2
✓ 20	1/12/2018	3rd Santo Ultra Maranic - Santo Course	200,00	×2
✓ 21	2/12/2017	2nd Santo Ultra Maranic - Santo Course	200,00	×2
✓ 22	3/12/2016	1st Santo Ultra Maranic (Three City Miyako Course)	200,00	×2
✓ 23	4/5/2025	19th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×2
✓ 24	3/5/2023	17th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×2
✓ 25	4/5/2019	13th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×2
✓ 26	4/5/2017	11th Nagasaki Tachibana Gulf Coast Super Maranic 173	173,00	×2
✓ 27	10/4/2021	4th Lake Biwa Kaizu Sakura Maranic - 150 km	150,00	×1
✓ 28	14/3/2026	16th Oedo Night run 115k	115,00	×1
✓ 29	15/3/2025	15th Oedo Night run 115k	115,00	×1
✓ 30	11/3/2023	13th Oedo Night run 115k	115,00	×1
✓ 31	22/2/2020	10th Oedo Night run 115k	115,00	×1
✓ 32	23/2/2019	9th Oedo Night run 113k	113,00	×1
✓ 33	3/3/2018	8th Oedo Night run 113k	113,00	×1
✓ 34	4/3/2017	7th Oedo Night run 113k	113,00	×1
✓ 35	5/3/2016	6th Oedo Night run 113k	113,00	×1
✓ 36	28/2/2015	5th Oedo Night run 112k	112,00	×1
✓ 37	1/3/2014	4th Oedo Night run 112k	112,00	×1
✓ 38	3/3/2012	2nd Oedo Night run 111k	111,00	×1
✓ 39	20/4/2024	30. Sakura Michi Kokusai Nature Run (Half)	110,00	×1
✓ 40	21/11/2025	19th Nagasaki Tachibana Gulf Coast Super Maranic 103	103,00	×1
✓ 41	24/11/2024	18th Nagasaki Tachibana Gulf Coast Super Maranic 103	103,00	×1
✓ 42	25/5/2019	8th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 43	26/5/2018	7th Tojinbo 103 km Ultramarathon	103,00	×1
✓ 44	4/11/2016	Tachibana Bay Coast 100 Ultra Marathon	103,00	×1
✓ 45	25/6/2023	38. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 46	30/6/2019	34. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 47	24/6/2018	33. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 48	25/6/2017	32. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 49	8/1/2017	2nd Yakushima Ultramarathon	100,00	×1
✓ 50	26/6/2016	31. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 51	9/1/2016	1st Yakushima Ultramarathon	100,00	×1
✓ 52	27/9/2015	18th Muraoka 100 km Ultra Marathon	100,00	×1
✓ 53	29/6/2014	29. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 54	30/6/2013	28. Lake Saroma 100 km Ultramarathon (JPN)	100,00	×1
✓ 55	23/9/2012	22. Akita Nairiku 100km Marathon	100,00	×1
✓ 56	24/6/2012	27. Lake Saroma 100 km Ultramarathon (JPN)	100,00	×1
✓ 57	25/9/2011	21. Akita Nairiku 100km Marathon	100,00	×1
✓ 58	26/6/2011	26. Lake Saroma 100 km Ultramarathon (JPN)	100,00	×1
✓ 59	22/5/2011	3rd 100 km Ultra Maranic Osaka	100,00	×1
✓ 60	19/9/2010	10th Tango 100 km Ultramarathon	100,00	×1
✓ 61	27/6/2010	25. Lake Saroma 100 km Ultramarathon	100,00	×1
✓ 62	20/9/2009	9th Tango 100 km Ultramarathon	100,00	×1
✓ 63	29/9/2013	16th Muraoka 88 km Ultra Marathon	88,00	×1
✓ 64	4/6/2017	24. Ultramarathon Okumusashi	78,00	—
✓ 65	5/6/2016	23. Ultramarathon Okumusashi	78,00	—
✓ 66	22/6/2015	22. Ultramarathon Okumusashi	77,00	—
✓ 67	17/5/2015	Saba Highway Ultramarathon	77,00	—
✓ 68	18/5/2014	Saba Highway Ultramarathon	77,00	—
✓ 69	28/7/2013	20. Ultramarathon Okumusashi	77,00	—
70	28/9/2014	17th Muraoka 66 km Ultra Marathon	66,00	—
71	30/9/2012	15th Muraoka 66 km Ultra Marathon	66,00	—
72	26/4/2015	17. Okukumano 65 km Ultramarathon	65,00	—