Takashi (若林隆史) Wakabayashi

Born : 1961 Cat. M65 Ultrarunner since 2014

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

29,6%

Rank quotient ?This runner's calculation uses 74 eligible race(s): Σ(rank − 1) = 7 058; Σ finishers = 23 883. 7 058 / 23 883 × 100 = 29.55%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed86

Km — ultra races9 718 km

> 100 km31

> 160 km18

> 200 km10

Longest race513,0 km

17th River Road Foot Race 513 km — 30/4/2022

Km per year (ultra races)

1 088

2022

746

2023

739

2024

105

2025

519

2026

Race types (share of distance)

Road77,8%

Trail7,9%

Stage14,3%

Records

50 km8h35'38 100 km9h41'07 100 mi30h25'26 6 h60,00 km

HISTORY

77 race(s) · 11 stage(s) nested

Date		Race	Perf.	Rk
2026
09.05	55km	6th Kimitsu Ultra Marathon	6:32:52 h	149
19.04	100km	17th 100 km Ultra Maranic Osaka	13:30:21 h	183
28.03	160km	1st Shinkun Iga-goe Route Journey Run	30:25:26 h	108
15.03	54km	14th Arakawa Riverside Journey - Stage 2	8:01:36 h	74
28.02–01.03	150km/2stages	3rd Modern Japanese Silk Road Journey Run	23:19:46 h	64
28.02	78.2km	3rd Modern Japanese Silk Road Journey Run - Stage 1	11:28:09 h	72
01.03	71.7km	3rd Modern Japanese Silk Road Journey Run - Stage 2	11:51:37 h	56
2025
03.08	50km	1st Chiba Ultra Marathon 50km Day Run	8:35:38 h	13
10.05	55km	5th Kimitsu Ultra Marathon	7:32:53 h	250
2024
19.05	100km	30th Yatsugatake Nobeyama 100 km	12:37:40 h	404
11.05	55km	4th Kimitsu Ultra Marathon	6:00:47 h	48
21.04	100km	15th 100 km Ultra Maranic Osaka	11:26:00 h	74
30–31.03	148km/2stages	1st Modern Japanese Silk Road Journey Run	22:45:44 h	31
30.03	78km	1st Modern Japanese Silk Road Journey Run - Stage 1	11:20:47 h	50
31.03	71km	1st Modern Japanese Silk Road Journey Run - Stage 2	11:24:57 h	28
16–17.03	136km/2stages	12th Arakawa Riverside Journey Stage Race	17:26:10 h	23
16.03	82km	12th Arakawa Riverside Journey Stage Race - Stage 1	10:21:21 h	36
17.03	54.2km	12th Arakawa Riverside Journey Stage Race - Stage 2	7:04:49 h	42
09.03	200km	14th Little Edo Oedo 200k	34:21:13 h	135
2023
02.07	8h	29th 8-Hour Endurance Race Tokorozawa - 3 tai	49.000 km	41
21.05	100km	29th Yatsugatake Nobeyama 100 km	13:11:35 h	384
13.05	55km	3rd Kimitsu Ultra Marathon	6:21:49 h	44
23.04	100km	14th 100 km Ultra Maranic Osaka	11:50:16 h	100
15.04	160km	2nd Yagurazawa Round Trip Pre-Tournament	31:02:28 h	35
18.03	82km	11th Arakawa Riverside Journey Stage Race - Stage 1	10:41:32 h	36
11.03	200km	13th Little Edo Oedo 200k	33:38:26 h	146
2022
20.11	63km	1. Minuma Challenge 60	7:31:09 h	32
03.09	121km	2nd Tone River Run Up Journey Run Upstream	19:47:46 h	20
22.05	100km	28th Yatsugatake Nobeyama 100 km	13:43:36 h	802
30.04	513km	17th River Road Foot Race 513 km	5d 01:56:19 h	29
02.04	155km	2nd Tone River Run Up Journey Run Downstream	25:14:00 h	42
21–22.03	136km/2stages	10th Arakawa Riverside Journey Stage Race	19:16:00 h	50
21.03	81.6km	10th Arakawa Riverside Journey Stage Race - Stage 1	11:38:00 h	67
22.03	55.4km	10th Arakawa Riverside Journey Stage Race - Stage 2	7:38:00 h	36
2021
17.07	117km	1st Nakasendo Ultra	22:56:00 h	20
08.05	57km	1st Kimitsu Ultra Marathon	6:58:21 h	105
03.05	251km	16th River Road Foot Race 254 km	44:53:11 h	17
03.04	80km	9th Arakawa Riverside Journey Stage Race - Stage 1	10:10:00 h	18
27.02	200km	11th Little Edo Oedo 200k	32:27:41 h	85
2020
20.09	127km	3rd Utsukushima Fukushima Journey Run 127K	18:17:10 h	39
21.03	136km/2stages	8th Arakawa Riverside Journey Stage Race	17:35:45 h	23
22.02	206km	10th Little Edo Oedo 205k	34:10:41 h	147
2019
07.12	200km	4th Santo Ultra Maranic - Santo Course	32:54:00 h	15
14.09	251km	2nd Utsukushima Fukushima Journey Run 250K	44:59:30 h	34
17.08	101km	7th World Cultural Heritage "Fuji" Foot Race	13:41:24 h	41
13.07	263km	4th Michinoku Tsugaru Journey Run 263K	45:46:06 h	43
19.05	100km	25th Yatsugatake Nobeyama 100 km	12:40:10 h	638
26.01	200km/3stages	Okinawa Hontō 3 days stage race	23:26:19 h	5
2018
01.12	200km	3rd Santo Ultra Maranic - Santo Course	31:10:00 h	6
15.09	250km	1st Utsukushima Fukushima Journey Run 250K	46:53:44 h	34
19.08	101km	6th World Cultural Heritage "Fuji" Foot Race	12:22:00 h	21
14.07	263km	3rd Michinoku Tsugaru Journey Run 263K	2d 00:11:27 h	47
20.05	100km	24th Yatsugatake Nobeyama 100 km	11:29:33 h	275
03.05	70km	26. Mukogawa Yurikamome Ultra Marathon	6:19:09 h	81
14.04	70km	13th Toda Saiko 70 km	6:23:10 h	73
2017
02.12	200km	2nd Santo Ultra Maranic - Santo Course	30:52:00 h	7
04.11	45km	2nd Myoko Ultra Run rAce 18	5:23:10 h	32
24.09	100km	20th Jonaizaka 100 km Ultra Marathon	11:27:00 h	16
09.09	201km	9th Biwako Tourism Ultramannic 200 km	31:04:30 h	5
20.08	97km	5th World Cultural Heritage "Fuji" Foot Race	11:57:00 h	20
15.07	250km	2nd Michinoku Tsugaru Journey Run 250K	44:15:38 h	29
02.07	8h	23th 8-Hour Endurance Race Tokorozawa - 3 tai	61.674 km	47
21.05	100km	23rd Yatsugatake Nobeyama 100 km	12:48:11 h	463
03.05	70km	25. Mukogawa Yurikamome Ultra Marathon	6:43:39 h	112
23.04	100km	9th 100 km Ultra Maranic Osaka	9:44:41 h	22
08.04	70km	12th Toda Saiko 70 km	6:15:04 h	56
18–20.03	270km/3stages	Okinawa Hontō 3 days stage race	36:20:43 h	9
18.03	104km	Okinawa Hontō 3 days stage race (TOFR) - Stage 1	13:19:31 h	14
19.03	98km	Okinawa Hontō 3 days stage race (TOFR) - Stage 2	13:46:56 h	10
20.03	68km	Okinawa Hontō 3 days stage race (TOFR) - Stage 3	9:14:18 h	13
04.03	91km	7th Little Edo 91km	10:30:32 h	11
2016
18.12	100km	1st Okinawa 100km Ultramarathon	10:56:34 h	56
03.12	200km	1st Santo Ultra Maranic (Three City Miyako Course)	31:43:00 h	7
18.09	100km	19th Jonaizaka 100 km Ultra Marathon	11:26:21 h	12
21.08	97km	4th World Cultural Heritage "Fuji" Foot Race	12:24:00 h	20
03.07	8h	22th 8-Hour Endurance Race Tokorozawa - 3 tai	64.920 km	31
22.05	100km	22nd Yatsugatake Nobeyama 100 km	11:36:21 h	278
03.05	70km	24. Mukogawa Yurikamome Ultra Marathon	6:09:47 h	53
24.04	100km	8th 100 km Ultra Maranic Osaka	10:09:53 h	35
09.04	70km	11th Toda Saiko 70 km	6:09:51 h	22
05.03	91km	6th Little Edo 91km	9:34:46 h	10
2015
06.12	6h	4th Coedo Kawagoe 6 Hours Run	60.000 km	7
20.09	100km	15th Tango 100 km Ultramarathon	9:41:07 h	87
12.07	8h	21th 8-Hour Endurance Race Tokorozawa - 3 tai	59.274 km	53
17.05	100km	21st Yatsugatake Nobeyama 100 km	10:58:40 h	199
03.05	70km	23. Mukogawa Yurikamome Ultra Marathon	6:19:11 h	66
11.04	70km	10th Toda Saiko 70 km	6:15:10 h	32
2014
03.05	70km	22. Mukogawa Yurikamome Ultra Marathon	8:07:07 h	379

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	30/4/2022	17th River Road Foot Race 513 km	513,00	×6
✓ 2	18/3/2017	Okinawa Hontō 3 days stage race (TOFR)	270,00	×3
✓ 3	13/7/2019	4th Michinoku Tsugaru Journey Run 263K	263,00	×3
✓ 4	14/7/2018	3rd Michinoku Tsugaru Journey Run 263K	263,00	×3
✓ 5	3/5/2021	16th River Road Foot Race 254 km	251,00	×3
✓ 6	14/9/2019	2nd Utsukushima Fukushima Journey Run 250K	251,00	×3
✓ 7	15/9/2018	1st Utsukushima Fukushima Journey Run 250K	250,00	×3
✓ 8	15/7/2017	2nd Michinoku Tsugaru Journey Run 250K	250,00	×3
✓ 9	22/2/2020	10th Little Edo Oedo 205k	206,00	×2
✓ 10	9/9/2017	9th Biwako Tourism Ultramannic 200 km	201,00	×2
✓ 11	9/3/2024	14th Little Edo Oedo 200k	200,00	×2
✓ 12	11/3/2023	13th Little Edo Oedo 200k	200,00	×2
✓ 13	27/2/2021	11th Little Edo Oedo 200k	200,00	×2
✓ 14	7/12/2019	4th Santo Ultra Maranic - Santo Course	200,00	×2
✓ 15	26/1/2019	Okinawa Hontō 3 days stage race (TOFR)	200,00	×2
✓ 16	1/12/2018	3rd Santo Ultra Maranic - Santo Course	200,00	×2
✓ 17	2/12/2017	2nd Santo Ultra Maranic - Santo Course	200,00	×2
✓ 18	3/12/2016	1st Santo Ultra Maranic (Three City Miyako Course)	200,00	×2
✓ 19	28/3/2026	1st Shinkun Iga-goe Route Journey Run	160,00	×1
✓ 20	15/4/2023	2nd Yagurazawa Round Trip Pre-Tournament	160,00	×1
✓ 21	2/4/2022	2nd Tone River Run Up Journey Run Downstream	155,00	×1
✓ 22	28/2/2026	3rd Modern Japanese Silk Road Journey Run	150,00	×1
✓ 23	30/3/2024	1st Modern Japanese Silk Road Journey Run	148,00	×1
✓ 24	16/3/2024	12th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 25	21/3/2022	10th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 26	21/3/2020	8th Arakawa Riverside Journey Stage Race	136,00	×1
✓ 27	20/9/2020	3rd Utsukushima Fukushima Journey Run 127K	127,00	×1
✓ 28	3/9/2022	2nd Tone River Run Up Journey Run Upstream	121,00	×1
✓ 29	17/7/2021	1st Nakasendo Ultra	117,00	×1
✓ 30	17/8/2019	7th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 31	19/8/2018	6th World Cultural Heritage "Fuji" Foot Race	101,00	×1
✓ 32	19/4/2026	17th 100 km Ultra Maranic Osaka	100,00	×1
✓ 33	19/5/2024	30th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 34	21/4/2024	15th 100 km Ultra Maranic Osaka	100,00	×1
✓ 35	21/5/2023	29th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 36	23/4/2023	14th 100 km Ultra Maranic Osaka	100,00	×1
✓ 37	22/5/2022	28th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 38	19/5/2019	25th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 39	20/5/2018	24th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 40	24/9/2017	20th Jonaizaka 100 km Ultra Marathon	100,00	×1
✓ 41	21/5/2017	23rd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 42	23/4/2017	9th 100 km Ultra Maranic Osaka	100,00	×1
✓ 43	18/12/2016	1st Okinawa 100km Ultramarathon	100,00	×1
✓ 44	18/9/2016	19th Jonaizaka 100 km Ultra Marathon	100,00	×1
✓ 45	22/5/2016	22nd Yatsugatake Nobeyama 100 km	100,00	×1
✓ 46	24/4/2016	8th 100 km Ultra Maranic Osaka	100,00	×1
✓ 47	20/9/2015	15th Tango 100 km Ultramarathon	100,00	×1
✓ 48	17/5/2015	21st Yatsugatake Nobeyama 100 km	100,00	×1
✓ 49	20/8/2017	5th World Cultural Heritage "Fuji" Foot Race	97,00	×1
✓ 50	21/8/2016	4th World Cultural Heritage "Fuji" Foot Race	97,00	×1
✓ 51	4/3/2017	7th Little Edo 91km	91,00	×1
✓ 52	5/3/2016	6th Little Edo 91km	91,00	×1
✓ 53	3/5/2018	26. Mukogawa Yurikamome Ultra Marathon	70,00	—
✓ 54	14/4/2018	13th Toda Saiko 70 km	70,00	—
✓ 55	3/5/2017	25. Mukogawa Yurikamome Ultra Marathon	70,00	—
✓ 56	8/4/2017	12th Toda Saiko 70 km	70,00	—
✓ 57	3/5/2016	24. Mukogawa Yurikamome Ultra Marathon	70,00	—
✓ 58	9/4/2016	11th Toda Saiko 70 km	70,00	—
✓ 59	3/5/2015	23. Mukogawa Yurikamome Ultra Marathon	70,00	—
✓ 60	11/4/2015	10th Toda Saiko 70 km	70,00	—
✓ 61	3/5/2014	22. Mukogawa Yurikamome Ultra Marathon	70,00	—
✓ 62	3/7/2016	22th 8-Hour Endurance Race Tokorozawa - 3 tai	64,92	—
✓ 63	20/11/2022	1. Minuma Challenge 60	63,00	—
64	2/7/2017	23th 8-Hour Endurance Race Tokorozawa - 3 tai	61,67	—
65	6/12/2015	4th Coedo Kawagoe 6 Hours Run	60,00	—
66	12/7/2015	21th 8-Hour Endurance Race Tokorozawa - 3 tai	59,27	—
67	8/5/2021	1st Kimitsu Ultra Marathon	57,00	—
68	9/5/2026	6th Kimitsu Ultra Marathon	55,00	—
69	10/5/2025	5th Kimitsu Ultra Marathon	55,00	—
70	11/5/2024	4th Kimitsu Ultra Marathon	55,00	—
71	13/5/2023	3rd Kimitsu Ultra Marathon	55,00	—
72	3/8/2025	1st Chiba Ultra Marathon 50km Day Run	50,00	—
73	2/7/2023	29th 8-Hour Endurance Race Tokorozawa - 3 tai	49,00	—
74	4/11/2017	2nd Myoko Ultra Run rAce 18	45,00	—