Seijirou (佐竹誠二郎) Satake
ID 71969
Born : 1958 Cat. M65 Ultrarunner since 2003 JPN
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
43
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
16,3%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 2 316; Σ finishers = 14 251. 2 316 / 14 251 × 100 = 16.25%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races2 241 km
> 100 km1
> 160 km1
> 200 km1
Longest race250,0 km
19. Yamaguchi 100 Hagi-O-Kan Maranic 250 km — 2/5/2007

Km per year (ultra races)

161
2 races
2022
2023
100
1 race
2024
2025
2026

Race types (share of distance)

Road92,4%
Trail7,6%

Records

100 km9h28'50

HISTORY

22 race(s)
DateRacePerf.Rk
2024
13.10 100km JPN15th Echigo Kubikino 100km Ultramarathon 11:27:52 h197
2022
12.06 84.39km JPN6th JAL Mukatsuku Double Marathon 10:38:49 h180
22.05 77km JPN27th Saba Highway Ultramarathon 11:21:32 h196
2019
15.09 100km JPN19th Tango 100 km Ultramarathon 12:00:09 h279
28.07 100km JPN9th North Okhotsk 100 km Marathon 10:33:56 h24
09.06 100km JPN8th Hida Takayama 100 km Ultramarathon 10:38:16 h240
2018
09.09 100km JPN6th 100 km Ultramarathon Hakusan-Shirakawago 11:19:58 h136
10.06 100km JPN2nd Koyasan and Ryujin-Onsen 100 km Ultra Marathon 10:58:29 h29
2017
08.01 100km JPN2nd Yakushima Ultramarathon 12:18:00 h12
2016
11.09 100km JPN4th 100 km Ultramarathon Hakusan-Shirakawago 11:24:35 h94
2015
27.09 100km JPN18th Muraoka 100 km Ultra Marathon 12:13:33 h137
2014
08.06 100km JPN3rd Hida Takayama 100 km Ultramarathon 10:38:25 h133
2012
10.06 100km JPN8th Iwate Ginga 100km Marathon Challenge 10:09:53 h100
03.05 70km JPN20. Mukogawa Yurikamome Ultra Marathon 6:30:08 h77
2011
25.09 100km JPN21. Akita Nairiku 100km Marathon 9:53:23 h65
2010
17.10 60km JPN16th River Shimanto 60km 5:13:07 h17
2009
18.10 100km JPN15th River Shimanto 100km 9:28:50 h69
21.06 100km JPN4. Okinoshima 100km Ultra Marathon 9:29:04 h7
2008
19.10 100km JPN14th River Shimanto 100km 10:52:27 h190
2007
02.05 250km JPN19. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 43:34:08 h56
2004
16.05 100km JPN10th Yatsugatake Nobeyama 100 km 9:43:03 h9
2003
19.10 100km JPN9th River Shimanto 100km 9:39:37 h91