Ryoichi (佐藤良一) Sato
ID 5035
Born : 1961 Cat. M65 Ultrarunner since 1999 JPN
44
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
79
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
9
Countries visited ?AUTAustriaCANCanadaGREGreeceINDIndiaJPNJapanMARMoroccoNEPNepalTPETaiwanUSAUnited States
24,0%
Rank quotient ?This runner's calculation uses 44 eligible race(s): Σ(rank − 1) = 2 588; Σ finishers = 10 785. 2 588 / 10 785 × 100 = 24.00%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed49
Km — ultra races7 729 km
> 100 km30
> 160 km26
> 200 km24
> 24h9
Longest race250,0 km
19. Sakura Michi Kokusai Nature Run — 21/4/2012

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road53,4%
Trail43,8%
Stage2,8%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M3
Longest winning streak1
Current streak0

Records

50 km5h42'54100 km9h22'1224 h237,37 km

HISTORY

44 race(s) · 1 split(s) nested
DateRacePerf.Rk
2020
12.01 50km JPN5th Yakushima Ultramarathon 50 km 5:42:54 h6
2019
28.07 50km JPN9th North Okhotsk 50 km Marathon 6:40:06 h74
2018
15.09 122km JPN1st Utsukushima Fukushima Journey Run 122K 21:17:04 h51
03.06 78km JPN25. Ultramarathon Okumusashi 9:08:53 h391
2017
04.06 78km JPN24. Ultramarathon Okumusashi 8:58:24 h460
2016
06.11 70km JPN1st Ryoma Dappan Trail Race 13:18:51 h55
17.07 200km JPN1st Michinoku Tsugaru Journey Run 200K 27:56:15 h11
18.06 24h JPN15. Green Charity Marathon Tokyo - Hard Run 24H 141.589 km23
2015
29.03 100km JPN1st Osaka Yodogawa 100 km Ultra Marathon 11:25:45 h204
2013
22.07 222km IND4th La Ultra - the High 2d 01:18:19 h5
2012
20.05 100km JPN18th Yatsugatake Nobeyama 100 km 9:54:31 h44
21.04 250km JPN19. Sakura Michi Kokusai Nature Run 31:44:00 h22
2011
05.06 50km JPN3rd OSJ Okukuji Trail 50k 9:06:59 h80
01.01 70km NEP5th Annapurna 70k Ultra Trail 14:38:00 h15
2010
18.07 100km JPN3rd OSJ Ontake 100km Ultra Trail 13:18:00 h55
17.04 250km JPN17. Sakura Michi Kokusai Nature Run 28:58:00 h9
2009
25.09 245.3km GRE27. Spartathlon 29:44:08 h25
19.07 100km JPN2nd OSJ Ontake 100km Ultra Trail 11:32:48 h19
26.04 112km JPN19th Fuji 5 Lakes 112 km Challenge 10:26:46 h16
2008
26.09 245.3km GRE26. Spartathlon 31:19:50 h28
20.07 100km JPN1st OSJ Ontake 100km Ultra Trail 11:34:03 h24
2007
28.09 245.3km GRE25. Spartathlon 29:25:46 h10
28.07 24h CANOpen race at IAU 24h WC 24 Drummondville 232.760 km1 🏆
20.05 100km JPN13th Yatsugatake Nobeyama 100 km 9:22:12 h14
2006
09.12 24h JPN1st Jingu Gaien 24 Hour Challenge 221.910 km5
29.09 245.3km GRE24. Spartathlon 33:40:24 h37
13.08 75km JPN13. Ultramarathon Okumusashi 6:42:40 h25
03.06 24h JPN4th Akiruno 24 Hour Race Japan Cup 237.374 km3 🥉
22.04 250km JPN13. Sakura Michi Kokusai Nature Run 28:13:00 h7
25.02 24h TPE7th Taipei Yuanshan 24h 205.770 km5
2005
12.11 24h USA7th San Diego One Day 24-Hour Race 168.033 km30
30.09 245.3km GRE23. Spartathlon 34:33:33 h62
16.07 24h AUTIAU 24h WC Wörschach 228.616 km22
23.04 250km JPN12. Sakura Michi Kokusai Nature Run 32:31:00 h27
03.04 24h TPE6th Soochow/Taipei 24h ultramarathon 222.667 km8
2004
12.06 24h JPN2nd Akiruno 24 Hour Race Japan Cup 110.400 km34
02.05 250km JPN16. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 47:08:00 h147
2003
26.09 245.3km GRE21. Spartathlon 34:43:51 h57
02.05 250km JPN15. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 43:30:41 h41
2002
27.09 245.3km GRE20. Spartathlon 34:52:40 h61
2001
28.09 245.3km GRE19. Spartathlon 35:55:20 h79
02.05 250km JPN13. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 42:39:27 h19
2000
04.04 220km/6stages MAR15. Marathon des Sables 42:12:20 h273
1999
02.05 250km JPN11. Yamaguchi 100 Hagi-O-Kan Maranic 250 km 45:33:39 h48