Kenji (濱岡賢二) Hamaoka
ID 366592
Born : 1961 Cat. M65 Ultrarunner since 2012 JPN
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
54
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
1
Countries visited ?JPNJapan
41,3%
Rank quotient ?This runner's calculation uses 50 eligible race(s): Σ(rank − 1) = 8 517; Σ finishers = 20 644. 8 517 / 20 644 × 100 = 41.26%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed50
Km — ultra races4 881 km
> 100 km9
> 24h5
Longest race159,8 km
19th 24-hour relay & solo marathon Kobe — 3/8/2019

Km per year (ultra races)

416
4 races
2022
399
4 races
2023
459
5 races
2024
500
5 races
2025
251
3 races
2026

Race types (share of distance)

Road92,1%
Trail7,9%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 33
🏅 Top 3 M3
Longest winning streak1
Current streak0

Records

100 km10h48'1750 mi11h41'006 h54,40 km12 h99,00 km24 h159,80 km

HISTORY

50 race(s)
DateRacePerf.Rk
2026
28.06 100km JPN41. Lake Saroma 100 km Ultramarathon 12:31:46 h1896
20.06 6h JPN5th Oizumi Ryokuchi Park 6h 50.600 km10
19.04 100km JPN17th 100 km Ultra Maranic Osaka 12:10:41 h97
2025
18.10 100km JPN8th Iki 100 km Ultra Marathon 13:30:02 h276
05.10 100km JPN6th Mine Akiyoshidai Geopark Ultra Marathon 13:22:57 h49
25.05 100km JPN31th Ebisu-Daikoku 100 km Marathon 12:45:34 h243
20.04 100km JPN16th 100 km Ultra Maranic Osaka 12:11:36 h88
02.02 100km JPN4th Amami yori yori Run - Huaraches 14:26:01 h3 🥉
2024
19.10 100km JPN7th Iki 100 km Ultra Marathon 13:27:35 h200
06.10 100km JPN5th Mine Akiyoshidai Geopark Ultra Marathon 13:34:37 h83
31.08 105km JPN1st Sendai Ultra 100km 18:24:33 h26
17.08 6h JPN24th 6-hour relay & solo marathon Kobe 54.400 km12
21.04 100km JPN15th 100 km Ultra Maranic Osaka 11:28:16 h77
2023
15.10 100km JPN5th Yasaka Ultra Marathon in Hamada - 100 km 14:27:52 h49
24.09 100km JPN4th Mine Akiyoshidai Geopark Ultra Marathon 13:07:45 h60
10.06 12h JPN2nd Oizumi Ryokuchi Park 12h 99.000 km1 🏆
23.04 100km JPN14th 100 km Ultra Maranic Osaka 12:00:21 h115
2022
10.09 12h JPN1st Oizumi Ryokuchi Park 12h 83.600 km6
30.07 24h JPN22th 24-hour relay & solo marathon Kobe 132.600 km40
22.05 100km JPN1st Suo-Oshima Ultra Marathon - 100 km 13:20:51 h85
17.04 100km JPN13th 100 km Ultra Maranic Osaka 12:59:26 h74
2019
07.12 120km JPN4th Santo Ultra Maranic - Keihan Course 18:29:00 h3 🥉
07.10 100km JPN1st Fuji 4 Lakes 100 km Autumn Challenge 11:43:29 h132
03.08 24h JPN19th 24-hour relay & solo marathon Kobe 159.800 km13
25.05 103km JPN8th Tojinbo 103 km Ultramarathon 13:29:42 h39
2018
20.10 100km JPN3rd Iki 100 km Ultra Marathon 12:01:47 h122
09.09 100km JPN6th 100 km Ultramarathon Hakusan-Shirakawago 12:22:31 h260
04.08 24h JPN18th 24-hour relay & solo marathon Kobe 147.900 km28
2017
05.08 24h JPN17th 24-hour relay & solo marathon Kobe 117.300 km42
03.05 70km JPN25. Mukogawa Yurikamome Ultra Marathon 7:34:28 h287
23.04 100km JPN9th 100 km Ultra Maranic Osaka 11:03:52 h69
2016
03.12 80km JPN1st Santo Ultra Maranic (Two Capitals Nito Course) 11:41:00 h11
16.10 100km JPN22nd River Shimanto 100km 10:48:17 h263
02.10 70km JPN12th Ashiya Hama Shiokaze Ultra Marathon - 70 km 7:20:52 h7
06.08 24h JPN16th 24-hour relay & solo marathon Kobe 146.200 km18
03.05 70km JPN24. Mukogawa Yurikamome Ultra Marathon 7:30:27 h282
24.04 100km JPN8th 100 km Ultra Maranic Osaka 12:06:35 h155
2015
11.10 70km JPN11th Ashiya Hama Shiokaze Ultra Marathon - 70 km 7:04:17 h18
20.09 100km JPN15th Tango 100 km Ultramarathon 11:27:52 h337
07.06 100km JPN4th Hida Takayama 100 km Ultramarathon 12:16:17 h437
03.05 70km JPN23. Mukogawa Yurikamome Ultra Marathon 6:54:43 h150
26.04 100km JPN7th 100 km Ultra Maranic Osaka 12:15:09 h124
2014
22.11 60km JPN1st Kiso-Sansen 60 km Ultra-Marathon 5:57:41 h223
05.10 102km JPN3rd Noto Peninsula 100 km Ultra Marathon 11:54:29 h58
14.09 100km JPN14th Tango 100 km Ultramarathon 11:40:51 h392
27.04 100km JPN6th 100 km Ultra Maranic Osaka 11:47:00 h114
2013
20.10 100km JPN19th River Shimanto 100km 13:44:28 h934
21.04 100km JPN5th 100 km Ultra Maranic Osaka 13:09:24 h225
2012
20.05 100km JPN4th 100 km Ultra Maranic Osaka 11:41:24 h106
03.05 70km JPN20. Mukogawa Yurikamome Ultra Marathon 7:38:17 h228