Tooru (塚本徹) Tsukamoto

Born : 1962 Cat. M60 Ultrarunner since 2003

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

9,6%

Rank quotient ?This runner's calculation uses 56 eligible race(s): Σ(rank − 1) = 3 501; Σ finishers = 36 572. 3 501 / 36 572 × 100 = 9.57%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed56

Km — ultra races5 244 km

> 100 km3

> 160 km1

> 24h1

Longest race200,0 km

2nd Michinoku Tsugaru Journey Run 200K — 15/7/2017

Km per year (ultra races)

198

2022

300

2023

270

2024

100

2025

2026

Race types (share of distance)

Road84,3%

Trail14,2%

Stage1,5%

Wins & podiums (ultra)

🏆 Win1

🏆 Win M1

🏅 Top 33

🏅 Top 3 M3

Longest winning streak1

Current streak0

Records

50 km8h00'34 100 km8h35'02 50 mi8h17'27 24 h71,40 km

HISTORY

56 race(s)

Date		Race	Perf.	Rk
2025
08.06	100km	13th Hida Takayama 100 km Ultramarathon	11:31:21 h	365
2024
13.10	100km	15th Echigo Kubikino 100km Ultramarathon	11:28:55 h	200
26.05	100km	30th Ebisu-Daikoku 100 km Marathon	11:57:31 h	86
20.04	70km	3rd Atsumi Peninsula Ultra Nature Run - 70km	8:38:25 h	25
2023
21.10	100km	6th Iki 100 km Ultra Marathon	10:52:36 h	80
24.09	100km	4th Mine Akiyoshidai Geopark Ultra Marathon	11:33:31 h	23
16.07	100km	3rd Yamaguchi Hagi Return	13:42:41 h	8
2022
04.09	50km	11th Hakuba Int. Trail Run	8:00:34 h	162
25.06	48km	1st KTF Trail running race - Rockin Bear	7:10:00 h	98
22.05	100km	10th Tokyo Shibamata 100 km	10:16:37 h	114
2020
21.03	80km	8th Arakawa Riverside Journey - 80 km	8:17:27 h	1 🏆
2019
20.10	100km	25th River Shimanto 100km	10:05:23 h	130
19.05	100km	7th Tokyo Shibamata 100 km	9:36:30 h	87
2018
21.10	100km	24th River Shimanto 100km	9:11:10 h	62
30.06	8h	24th 8-Hour Endurance Race Tokorozawa	78.400 km	10
03.06	100km	6th Tokyo Shibamata 100 km	8:58:03 h	32
22.04	100km	10th 100 km Ultra Maranic Osaka	9:00:55 h	9
2017
15.10	100km	23rd River Shimanto 100km	9:22:15 h	76
03.09	100km	34. Tsuruoka 100km Marathon	9:26:47 h	4
15.07	200km	2nd Michinoku Tsugaru Journey Run 200K	35:01:59 h	25
04.06	100km	5th Tokyo Shibamata 100 km	8:35:02 h	20
2016
09.10	100km	11th Echigo Kubikino 100km Ultramarathon	9:18:14 h	48
11.09	100km	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	10:15:09 h	20
31.07	100km	6th North Okhotsk 100 km Marathon	9:56:58 h	22
03.07	8h	22th 8-Hour Endurance Race Tokorozawa - 3 tai	74.658 km	7
05.06	100km	4th Tokyo Shibamata 100 km	9:03:12 h	26
09.04	70km	11th Toda Saiko 70 km	7:47:02 h	222
2015
21.11	104km	1st FunTrails100K Round	24:56:28 h	145
01.08	24h	15th 24-hour relay & solo marathon Kobe	71.400 km	84
06.06	100km	3rd Tokyo Shibamata 100 km	9:36:42 h	88
2014
19.07	100km	7th OSJ Ontake 100km Ultra Trail	13:23:24 h	150
2013
22.09	100km	23. Akita Nairiku 100km Marathon	9:44:43 h	62
01.06	100km	1st Tokyo Shibamata 100 km	9:24:03 h	45
13.01	100km	23rd Miyako 100 km Ultramarathon	10:13:35 h	32
2012
06.10	100km	9th Echigo Kubikino 100km Ultramarathon	9:53:01 h	98
08.07	8h	18th 8-Hour Endurance Race Tokorozawa	84.396 km	10
2011
10.07	8h	17th 8-Hour Endurance Race Tokorozawa	74.658 km	8
2010
25.04	72km	20th Fuji 5 Lakes 72 km Challenge	7:08:21 h	31
2009
11.10	71.5km	17th Hasetsune Cup - Japan Mountain Endurance Race	11:53:17 h	219
05.07	8h	15th 8-Hour Endurance Race Tokorozawa	87.642 km	5
11.04	70km	4th Toda Saiko 70 km	5:46:53 h	7
2008
12.10	71.5km	16th Hasetsune Cup - Japan Mountain Endurance Race	12:13:29 h	254
03.08	75km	15. Ultramarathon Okumusashi	6:53:55 h	41
06.07	8h	14th 8-Hour Endurance Race Tokorozawa	81.150 km	3 🥉
18.05	100km	14th Yatsugatake Nobeyama 100 km	9:53:03 h	28
12.04	70km	3rd Toda Saiko 70 km	5:57:06 h	7
2007
14.10	100km	13th River Shimanto 100km	9:28:20 h	58
24.06	100km	7th Nichinan Orochi 100 km Marathon	8:59:31 h	25
2006
15.10	100km	12th River Shimanto 100km	8:53:28 h	31
2005
16.10	100km	11th River Shimanto 100km	8:37:46 h	24
29.05	100km	12th Ebisu-Daikoku 100 km Marathon	8:38:12 h	3 🥉
2004
17.10	100km	10th River Shimanto 100km	8:39:29 h	36
20.06	100km	4th Nichinan Orochi 100 km Marathon	9:17:03 h	17
03.05	140km	16. Yamaguchi 100 Hagi-O-Kan Maranic 140 km	19:08:00 h	7
2003
19.10	100km	9th River Shimanto 100km	9:28:58 h	69
25.05	100km	10th Ebisu-Daikoku 100 km Marathon	9:17:14 h	8

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	15/7/2017	2nd Michinoku Tsugaru Journey Run 200K	200,00	×3
✓ 2	3/5/2004	16. Yamaguchi 100 Hagi-O-Kan Maranic 140 km	140,00	×2
✓ 3	21/11/2015	1st FunTrails100K Round	104,00	×1
✓ 4	8/6/2025	13th Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 5	13/10/2024	15th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 6	26/5/2024	30th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 7	21/10/2023	6th Iki 100 km Ultra Marathon	100,00	×1
✓ 8	24/9/2023	4th Mine Akiyoshidai Geopark Ultra Marathon	100,00	×1
✓ 9	16/7/2023	3rd Yamaguchi Hagi Return	100,00	×1
✓ 10	22/5/2022	10th Tokyo Shibamata 100 km	100,00	×1
✓ 11	20/10/2019	25th River Shimanto 100km	100,00	×1
✓ 12	19/5/2019	7th Tokyo Shibamata 100 km	100,00	×1
✓ 13	21/10/2018	24th River Shimanto 100km	100,00	×1
✓ 14	3/6/2018	6th Tokyo Shibamata 100 km	100,00	×1
✓ 15	22/4/2018	10th 100 km Ultra Maranic Osaka	100,00	×1
✓ 16	15/10/2017	23rd River Shimanto 100km	100,00	×1
✓ 17	3/9/2017	34. Tsuruoka 100km Marathon	100,00	×1
✓ 18	4/6/2017	5th Tokyo Shibamata 100 km	100,00	×1
✓ 19	9/10/2016	11th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 20	11/9/2016	1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon	100,00	×1
✓ 21	31/7/2016	6th North Okhotsk 100 km Marathon	100,00	×1
✓ 22	5/6/2016	4th Tokyo Shibamata 100 km	100,00	×1
✓ 23	6/6/2015	3rd Tokyo Shibamata 100 km	100,00	×1
✓ 24	19/7/2014	7th OSJ Ontake 100km Ultra Trail	100,00	×1
✓ 25	22/9/2013	23. Akita Nairiku 100km Marathon	100,00	×1
✓ 26	1/6/2013	1st Tokyo Shibamata 100 km	100,00	×1
✓ 27	13/1/2013	23rd Miyako 100 km Ultramarathon	100,00	×1
✓ 28	6/10/2012	9th Echigo Kubikino 100km Ultramarathon	100,00	×1
✓ 29	18/5/2008	14th Yatsugatake Nobeyama 100 km	100,00	×1
✓ 30	14/10/2007	13th River Shimanto 100km	100,00	×1
✓ 31	24/6/2007	7th Nichinan Orochi 100 km Marathon	100,00	×1
✓ 32	15/10/2006	12th River Shimanto 100km	100,00	×1
✓ 33	16/10/2005	11th River Shimanto 100km	100,00	×1
✓ 34	29/5/2005	12th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 35	17/10/2004	10th River Shimanto 100km	100,00	×1
✓ 36	20/6/2004	4th Nichinan Orochi 100 km Marathon	100,00	×1
✓ 37	19/10/2003	9th River Shimanto 100km	100,00	×1
✓ 38	25/5/2003	10th Ebisu-Daikoku 100 km Marathon	100,00	×1
✓ 39	5/7/2009	15th 8-Hour Endurance Race Tokorozawa	87,64	×1
✓ 40	8/7/2012	18th 8-Hour Endurance Race Tokorozawa	84,40	×1
✓ 41	6/7/2008	14th 8-Hour Endurance Race Tokorozawa	81,15	×1
✓ 42	21/3/2020	8th Arakawa Riverside Journey - 80 km	80,00	×1
✓ 43	30/6/2018	24th 8-Hour Endurance Race Tokorozawa	78,40	×1
✓ 44	3/8/2008	15. Ultramarathon Okumusashi	75,00	×1
✓ 45	3/7/2016	22th 8-Hour Endurance Race Tokorozawa - 3 tai	74,66	×1
✓ 46	10/7/2011	17th 8-Hour Endurance Race Tokorozawa	74,66	×1
✓ 47	25/4/2010	20th Fuji 5 Lakes 72 km Challenge	72,00	×1
✓ 48	11/10/2009	17th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 49	12/10/2008	16th Hasetsune Cup - Japan Mountain Endurance Race	71,50	×1
✓ 50	1/8/2015	15th 24-hour relay & solo marathon Kobe	71,40	×1
✓ 51	20/4/2024	3rd Atsumi Peninsula Ultra Nature Run - 70km	70,00	×1
✓ 52	9/4/2016	11th Toda Saiko 70 km	70,00	×1
✓ 53	11/4/2009	4th Toda Saiko 70 km	70,00	×1
✓ 54	12/4/2008	3rd Toda Saiko 70 km	70,00	×1
55	4/9/2022	11th Hakuba Int. Trail Run	50,00	—
56	25/6/2022	1st KTF Trail running race - Rockin Bear	48,00	—