Kengo (田中健吾) Tanaka
Born : 1968 Cat. M55 Ultrarunner since 2014 JPN
100
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
108
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
3
Countries visited ?GERGermanyGREGreeceJPNJapan
52,7%
Rank quotient ?This runner's calculation uses 167 eligible race(s): Σ(rank − 1) = 36 991; Σ finishers = 70 216. 36 991 / 70 216 × 100 = 52.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed173
Km — ultra races24 707 km
> 100 km71
> 160 km46
> 200 km31
> 24h3
Longest race516,0 km

Km per year (ultra races)

2 280
14 races
2022
3 307
17 races
2023
3 144
15 races
2024
2 680
13 races
2025
1 510
8 races
2026

Race types (share of distance)

Road90,8%
Trail6,5%
Stage2,8%

Wins & podiums (ultra)

🏆 Win2
🏆 Win M2
🏅 Top 35
🏅 Top 3 M5
Longest winning streak1
Current streak0

HISTORY

168 race(s) · 5 stage(s) nested · 2 split(s) nested
DateRacePerf.Rk
2026
20.06 24h JPN5th Oizumi Ryokuchi Park 24h 123.200 km31
06.06 100mi JPN3rd Miyakojima Ultra 100 Miles 26:15:55 h22
30.04 516km JPN21st River Road Foot Race 516 km 5d 03:12:01 h31
04.04 150km JPN9th Lake Biwa Kaizu Sakura Maranic - 150 km LS 22:40:00 h8
28.03 160km JPN1st Shinkun Iga-goe Route Journey Run 28:49:17 h91
14.03 200km JPN16th Little Edo Oedo 200k 35:17:08 h218
01.02 100km JPN5th Amami yori yori Run 15:18:45 h53
24.01 100km JPN36th Miyako 100 km Ultramarathon 12:50:00 h163
2025
21.12 100km JPN8th Okinawa 100km Ultramarathon 12:48:23 h339
01.11 200km JPN9th Santo Ultra Maranic - Santo Course 31:23:00 h5
27.09 246km GRE42. Spartathlon 35:57:40 h246
13.09 250km JPN8th Utsukushima Fukushima Journey Run 250K 42:51:44 h17
19.07 266km JPN9th Michinoku Tsugaru Journey Run 266K 2d 04:40:23 h46
21.06 24h JPN4th Oizumi Ryokuchi Park 24h 162.800 km3 🥉
18.05 100km JPN31th Yatsugatake Nobeyama 100 km 13:04:25 h591
30.04 516km JPN20th River Road Foot Race 514 km 5d 01:40:01 h35
05.04 150km JPN8th Lake Biwa Kaizu Sakura Maranic - 150 km 22:22:00 h1 🏆
21.03 250km JPN1st Izuichi Great Race 250km 47:38:15 h24
15.03 200km JPN15th Little Edo Oedo 200k 33:14:42 h96
08.03 24h JPN16th Jingu Gaien 24 Hour Challenge 139.643 km65
02.02 100km JPN4th Amami yori yori Run 14:42:42 h36
2024
15.12 100km JPN7th Okinawa 100km Ultramarathon 12:34:24 h276
15.11 400km JPN10. Okinawa Hontō survival run 2d 23:24:43 h10
02.11 250km JPN5th Tokyo Great Race 250km RE 45:37:21 h15
19.10 200km JPN8th Santo Ultra Maranic - Santo Course 34:23:00 h9
28.09 246km GRE41. Spartathlon 35:55:54 h194
14.09 250km JPN7th Utsukushima Fukushima Journey Run 250K 44:55:54 h17
13.07 266km JPN8th Michinoku Tsugaru Journey Run 266K 2d 01:45:26 h37
09.06 100km JPN12th Hida Takayama 100 km Ultramarathon 11:22:45 h330
19.05 100km JPN30th Yatsugatake Nobeyama 100 km 12:23:45 h344
30.04 514km JPN19th River Road Foot Race 514 km 5d 05:17:46 h47
21.04 118km JPN34th Fuji 5 Lakes 118 km Challenge 14:40:18 h348
09.03 200km JPN14th Little Edo Oedo 200k 35:12:55 h187
04.02 100km JPN3rd Amami yori yori Run 15:05:52 h51
21.01 100km JPN34th Miyako 100 km Ultramarathon 12:38:18 h139
07.01 200km JPN4th Japan Trophy 200 27:00:23 h17
2023
17.12 100km JPN6th Okinawa 100km Ultramarathon 13:47:00 h494
24.11 400km JPN9. Okinawa Hontō survival run 2d 20:49:24 h16
11.11 100km JPN10th Michikusa-Ultra, Minamiizu 100 km 12:21:13 h46
03.11 320km JPN17th Nagasaki Tachibana Gulf Coast Super Maranic 320 2d 09:35:18 h10
28.10 147km JPN5th Autumn leaves in Okumusashi / Chichibu Journey run 19:35:24 h23
21.10 200km JPN7th Santo Ultra Maranic - Santo Course 28:39:00 h1 🏆
01.10 100km JPN10th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 12:22:52 h20
16.09 251km JPN6th Utsukushima Fukushima Journey Run 251K 45:34:30 h15
15.07 266km JPN7th Michinoku Tsugaru Journey Run 263K 2d 01:14:50 h32
11.06 100km JPN11th Hida Takayama 100 km Ultramarathon 12:16:44 h491
21.05 100km JPN29th Yatsugatake Nobeyama 100 km 13:45:16 h615
30.04 513km JPN18th River Road Foot Race 513 km 4d 22:50:12 h26
15.04 160km JPN2nd Yagurazawa Round Trip Pre-Tournament 31:00:17 h33
08.04 150km JPN6th Lake Biwa Kaizu Sakura Maranic - 150 km 22:44:00 h2 🥈
11.03 200km JPN13th Little Edo Oedo 200k 34:05:44 h152
05.02 100km JPN2nd Amami yori yori Run 14:07:45 h28
22.01 100km JPN33th Miyako 100 km Ultramarathon 13:10:17 h125
2022
18.12 100km JPN5th Okinawa 100km Ultramarathon 12:28:21 h214
18.11 400km JPN8. Okinawa Hontō survival run 2d 21:21:51 h13
04.11 250km JPN3rd Tokyo Great Race 250km 38:17:20 h8
29.10 146km JPN4th Autumn leaves in Okumusashi / Chichibu Journey run 19:17:32 h18
15.10 120km JPN6th Santo Ultra Maranic - Keihan Course 18:18:00 h4
09.10 100km JPN14th Echigo Kubikino 100km Ultramarathon 11:16:30 h204
02.10 100km JPN9th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 12:52:47 h15
16.07 266km JPN6th Michinoku Tsugaru Journey Run 263K 2d 01:55:40 h60
18.06 159km JPN3rd Nikko Sennin Concentric Highway Journey Run 28:25:00 h38
12.06 100km JPN10th Hida Takayama 100 km Ultramarathon 12:14:36 h447
05.06 78km JPN29. Ultramarathon Okumusashi 10:03:00 h560
15.05 60km JPN8th Ishigaki Island Ultra Marathon 8:47:31 h187
03.05 251km JPN17th River Road Foot Race 254 km 46:56:40 h15
09.04 150km JPN5th Lake Biwa Kaizu Sakura Maranic - 150 km 23:42:00 h4
2021
30.10 146km JPN3rd Autumn leaves in Okumusashi / Chichibu Journey run 23:27:21 h149
03.10 100km JPN8th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 14:09:30 h85
10.04 150km JPN4th Lake Biwa Kaizu Sakura Maranic - 150 km 26:01:00 h18
2020
22.02 206km JPN10th Little Edo Oedo 205k 32:45:12 h105
19.01 100km JPN30th Miyako 100 km Ultramarathon 12:36:07 h192
12.01 100km JPN5th Yakushima Ultramarathon 100 km 15:46:28 h231
2019
15.12 100km JPN4th Okinawa 100km Ultramarathon 13:23:45 h336
08.12 100km JPN2nd Tobishima Ultra Marathon 13:39:09 h165
22.11 400km JPN6. Okinawa Hontō survival run 2d 21:12:39 h2 🥈
01.11 320km JPNTachibana Bay Coast 320 Ultra Marathon 2d 09:48:50 h21
19.10 51.4km JPN10th Inagawa 100km Ultra-Marathon 5:33:25 h84
07.10 118km JPN1st Fuji 5 Lakes 118 km Autumn Challenge 14:50:23 h165
29.09 100km JPN6th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K 13:28:15 h23
22.09 100km JPN29. Akita Nairiku 100km Marathon 12:31:30 h382
14.09 251km JPN2nd Utsukushima Fukushima Journey Run 250K 45:57:49 h42
17.08 101km JPN7th World Cultural Heritage "Fuji" Foot Race 14:35:27 h62
13.07 263km JPN4th Michinoku Tsugaru Journey Run 263K 2d 00:03:08 h63
30.06 100km JPN34. Lake Saroma 100 km Ultramarathon 12:06:52 h1405
23.06 72.6km JPN6. Spatrail - Shima to Kusatsu 72K 12:09:52 h379
16.06 100km JPN14. Okinoshima 100km Ultra Marathon 11:27:08 h117
09.06 100km JPN8th Hida Takayama 100 km Ultramarathon 11:51:19 h633
02.06 70km JPN4th Osakikamijima Ultra Marthon - 70 km 8:19:04 h36
19.05 72km JPN24th Saba Highway Ultramarathon 9:54:14 h275
12.05 60km JPN5th Ishigaki Island Ultra Marathon 8:51:51 h164
04.05 217km JPN13th Nagasaki Tachibana Gulf Coast Super Maranic 217 31:52:47 h10
21.04 100km JPN11th 100 km Ultra Maranic Osaka 13:13:20 h293
13.04 102km JPN5th Okuizumo Ultra Orochi 100km Tooashi 14:49:53 h344
16–17.03 136km/2stages JPN7th Arakawa Riverside Journey Stage Race 16:27:33 h13
26.01 200km/3stages JPNOkinawa Hontō 3 days stage race 26:14:02 h13
20.01 100km JPN29th Miyako 100 km Ultramarathon 13:14:14 h224
13.01 100km JPN4th Yakushima Ultramarathon 14:05:22 h80
2018
16.12 100km JPN3rd Okinawa 100km Ultramarathon 12:39:56 h165
09.12 71.7km JPN5th Izu Trail Journey 13:18:51 h1030
23.11 400km JPN5. Okinawa Hontō survival run 2d 23:00:09 h18
02.11 105km JPNTachibana Bay Coast 105 Ultra Marathon 14:44:33 h81
21.10 100km JPN7th Noto Peninsula 100 km Ultra Marathon 11:57:16 h105
16.09 88km JPN9th Akiota Yajirushi Marathon 88km 11:38:03 h124
08.09 49.8km JPN6th Trainic world Soto-Chichibu Trail Run 50km 10:38:18 h261
11.08 100mi GER7. Mauerweglauf 100 Meilen Berlin 23:37:28 h195
14.07 263km JPN3rd Michinoku Tsugaru Journey Run 263K 2d 01:51:58 h77
24.06 100km JPN33. Lake Saroma 100 km Ultramarathon 11:26:32 h1016
17.06 100km JPN13. Okinoshima 100km Ultra Marathon 11:19:28 h71
10.06 84.39km JPN2nd JAL Mukatsuku Double Marathon 9:53:57 h93
03.06 100km JPN1st Nanto 100 km Ultramarathon 12:23:04 h55
26.05 103km JPN7th Tojinbo 103 km Ultramarathon 13:54:40 h68
13.05 60km JPN4th Ishigaki Island Ultra Marathon 8:50:12 h105
27.04 170km JPN5th Ultra-Trail Mt. Fuji 44:56:23 h956
22.04 100km JPN20. Okukumano 100 km Ultramarathon 12:49:33 h171
14.04 102km JPN4th Okuizumo Ultra Orochi 100km Tooashi 13:11:26 h141
24.03 112km JPN18th Mt. Rocco Cannonball Run - 112 km Power 21:08:28 h118
27–29.01 240km/3stages JPNOkinawa Hontō 3 days stage race 31:35:44 h9
14.01 100km JPN3rd Yakushima Ultramarathon 15:04:47 h70
2017
17.12 100km JPN2nd Okinawa 100km Ultramarathon 11:48:26 h115
10.12 71.7km JPN4th Izu Trail Journey 13:32:02 h1012
19.11 64km JPN1st Koshu Alps Haute Route Challenge 14:22:02 h87
02.11 276km JPNTachibana Bay Coast 273 Ultra Marathon 47:51:18 h22
15.10 100km JPN23rd River Shimanto 100km 11:10:14 h317
01.10 100km JPN1st Yasaka Ultra Marathon in Hamada - 100 km 12:43:02 h35
10.09 100km JPN5th 100 km Ultramarathon Hakusan-Shirakawago 12:49:01 h256
12.08 100mi GER6. Mauerweglauf 100 Meilen Berlin 23:24:26 h146
15.07 100km JPN10th OSJ Ontake 100km Ultra Trail 15:23:40 h396
02.07 100km JPN1st Nikko 100km Ultramarathon 12:30:19 h455
25.06 100km JPN32. Lake Saroma 100 km Ultramarathon 10:47:45 h600
18.06 100km JPN12. Okinoshima 100km Ultra Marathon 12:31:27 h141
11.06 100km JPN6th Hida Takayama 100 km Ultramarathon 12:39:41 h772
04.06 100km JPN5th Tokyo Shibamata 100 km 11:54:32 h622
28.05 100km JPN24th Ebisu-Daikoku 100 km Marathon 12:41:25 h185
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 13:32:21 h729
04.05 173km JPN11th Nagasaki Tachibana Gulf Coast Super Maranic 173 26:42:43 h31
23.04 100km JPN19. Okukumano 100 km Ultramarathon 12:33:39 h155
15.04 102km JPN3rd Okuizumo Ultra Orochi 100km Tooashi 13:07:51 h131
26.03 100km JPN13th Izu Oshima Ultra 100 km 13:45:54 h137
18.03 104km JPNOkinawa Hontō 3 days stage race (TOFR) - Stage 1 15:59:15 h43
15.01 100km JPN27th Miyako 100 km Ultramarathon 12:43:36 h216
08.01 100km JPN2nd Yakushima Ultramarathon 12:51:00 h20
2016
18.12 100km JPN1st Okinawa 100km Ultramarathon 12:05:13 h111
11.12 71.7km JPN3rd Izu Trail Journey 13:20:52 h962
13.11 75km JPN2nd Gasando Trail running race 13:06:17 h178
06.11 50km JPN3rd Nakanoto Treasure Trail Run Festival 8:14:49 h65
02.10 100km JPN1st Iki 100 km Ultra Marathon 13:28:42 h109
25.09 100km JPN19th Muraoka 100 km Ultra Marathon 13:24:58 h294
11.09 100km JPN1st Koyasan and Ryujin-Onsen 100 km Ultra Marathon 12:41:52 h123
31.07 100km JPN6th North Okhotsk 100 km Marathon 13:14:58 h143
16.07 100km JPN9th OSJ Ontake 100km Ultra Trail 15:11:09 h418
26.06 100km JPN31. Lake Saroma 100 km Ultramarathon 12:39:07 h2180
12.06 100km JPN12th Iwate Ginga 100km Marathon Challenge 12:07:28 h377
29.05 100km JPN23rd Ebisu-Daikoku 100 km Marathon 11:53:42 h172
28.05 50km JPN2nd Mt. Hiei Int. 50 km Trail Run 10:25:53 h762
22.05 100km JPN22nd Yatsugatake Nobeyama 100 km 13:19:50 h847
15.05 60km JPN2nd Ishigaki Island Ultra Marathon 7:46:02 h26
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 14:38:18 h493
27.03 100km JPN12th Izu Oshima Ultra 100 km 13:07:03 h151
13.02 50km JPN7th OSJ Jungle Trail 50K Amami 6:38:31 h84
17.01 100km JPN26th Miyako 100 km Ultramarathon 13:01:36 h245
2015
20.09 100km JPN15th Tango 100 km Ultramarathon 13:45:31 h1367
13.09 53km JPN5th Hakuba Int. Trail Run 8:45:57 h394
29.08 100km JPNKISO Great Traverse 100 km Ultra Marathon 13:49:51 h205
07.06 100km JPN4th Hida Takayama 100 km Ultramarathon 13:19:47 h790
29.03 100km JPN1st Osaka Yodogawa 100 km Ultra Marathon 13:07:18 h427
11.01 100km JPN25th Miyako 100 km Ultramarathon 12:46:59 h299
2014
22.11 60km JPN1st Kiso-Sansen 60 km Ultra-Marathon 6:04:53 h258