Yoshiyuki (佐藤良之) Sato
ID 732971
Born : 1963 Cat. M60 Ultrarunner since 2014 JPN
34
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
49
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
61,0%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 8 146; Σ finishers = 13 359. 8 146 / 13 359 × 100 = 60.98%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed34
Km — ultra races3 137 km
> 100 km10
> 160 km4
> 200 km2
Longest race206,0 km
10th Little Edo Oedo 205k — 22/2/2020

Km per year (ultra races)

192
3 races
2022
269
3 races
2023
2024
48
1 race
2025
2026

Race types (share of distance)

Road87,5%
Trail12,5%

Records

50 km9h53'35100 km12h03'1550 mi21h31'4512 h82,46 km

HISTORY

34 race(s)
DateRacePerf.Rk
2025
26.01 48km JPN3. Minuma Challenge 48 6:42:31 h19
2023
15.07 142km JPN7th Michinoku Tsugaru Journey Run 150K 26:46:03 h37
01.07 8h JPN29th 8-Hour Endurance Race Tokorozawa 49.000 km146
04.06 78km JPN30. Ultramarathon Okumusashi 10:31:08 h542
2022
20.11 63km JPN1. Minuma Challenge 60 8:26:19 h64
22.10 80km JPN2. Jungle Guruguru Max - 80 km 21:31:45 h75
03.07 8h JPN28th 8-Hour Endurance Race Tokorozawa 49.000 km222
2020
22.02 206km JPN10th Little Edo Oedo 205k 35:23:41 h220
2019
14.09 129km JPN2nd Utsukushima Fukushima Journey Run 129K 23:18:24 h43
17.08 101km JPN7th World Cultural Heritage "Fuji" Foot Race 15:45:58 h118
13.07 177km JPN4th Michinoku Tsugaru Journey Run 177K 33:39:59 h72
16.06 53km JPN5th Echigo Country Trail 8:49:28 h218
02.06 78km JPN26. Ultramarathon Okumusashi 9:49:52 h802
2018
14.11 58km JPN3rd Myoko Ultra Run rAce 18 7:44:42 h77
30.09 50km JPN21th Jonaizaka 50 km Ultra Marathon 10:18:00 h38
30.06 8h JPN24th 8-Hour Endurance Race Tokorozawa 49.000 km228
03.06 78km JPN25. Ultramarathon Okumusashi 10:42:12 h931
19.05 106km JPN3rd Trainic World 100 km in Sai-No-Kuni 29:47:35 h269
2017
04.11 45km JPN2nd Myoko Ultra Run rAce 18 5:23:54 h33
15.10 100km JPN6th Noto Peninsula 100 km Ultra Marathon 13:03:31 h212
30.09 12h JPN2nd Coedo Kawagoe Running Fest 12-hours run 82.460 km9
24.09 100km JPN20th Jonaizaka 100 km Ultra Marathon 13:15:00 h52
03.09 49.6km JPN6th Trainic world Ogose-Tokigawa Trail Run 50km 9:53:35 h262
15.07 200km JPN2nd Michinoku Tsugaru Journey Run 200K 38:36:39 h68
18.06 53km JPN3rd Echigo Country Trail 8:53:31 h169
04.06 78km JPN24. Ultramarathon Okumusashi 10:22:55 h983
2016
19.11 52km JPN2nd FunTrails50K Two Lakes&Green line 9:41:17 h235
09.10 100km JPN11th Echigo Kubikino 100km Ultramarathon 12:03:15 h520
18.09 100km JPN19th Jonaizaka 100 km Ultra Marathon 14:06:18 h41
05.06 78km JPN23. Ultramarathon Okumusashi 9:53:21 h833
05.03 204km JPN6th Little Edo Oedo 200k 32:53:24 h106
2015
28.02 112km JPN5th Oedo Night run 112k 15:34:50 h25
2014
27.07 77km JPN21. Ultramarathon Okumusashi 10:03:08 h481
01.03 112km JPN4th Oedo Night run 112k 16:58:38 h30