Junichi (佐藤順一) Sato
Born : 1964 Cat. M60 Ultrarunner since 2011 JPN
39
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
51
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
37,7%
Rank quotient ?This runner's calculation uses 39 eligible race(s): Σ(rank − 1) = 15 400; Σ finishers = 40 795. 15 400 / 40 795 × 100 = 37.75%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed39
Km — ultra races4 445 km
> 100 km3
> 160 km2
> 200 km2
Longest race516,0 km

Km per year (ultra races)

200
2 races
2022
526
4 races
2023
200
2 races
2024
716
3 races
2025
100
1 race
2026

Race types (share of distance)

Road100,0%

Records

HISTORY

39 race(s)
DateRacePerf.Rk
2026
28.06 100km JPN41. Lake Saroma 100 km Ultramarathon 12:07:30 h1571
2025
18.10 100km JPN8th Iki 100 km Ultra Marathon 13:32:04 h280
29.06 100km JPN40. Lake Saroma 100 km Ultramarathon 12:25:16 h1242
30.04 516km JPN20th River Road Foot Race 514 km 4d 22:07:22 h27
2024
19.10 100km JPN7th Iki 100 km Ultra Marathon 13:14:07 h168
30.06 100km JPN39. Lake Saroma 100 km Ultramarathon 12:30:20 h1258
2023
21.10 100km JPN6th Iki 100 km Ultra Marathon 12:20:45 h159
09.07 75km JPN1st Mt. Gassan Foot Ultra Marathon 10:27:09 h86
25.06 100km JPN38. Lake Saroma 100 km Ultramarathon 11:40:02 h833
03.05 251km JPN18th River Road Foot Race 251 km 41:21:14 h11
2022
15.10 100km JPN5th Iki 100 km Ultra Marathon 12:20:36 h78
12.06 100km JPN16th Iwate Ginga 100km Marathon Challenge 11:43:56 h264
2019
15.12 100km JPN4th Okinawa 100km Ultramarathon 11:39:34 h147
19.10 100km JPN4th Iki 100 km Ultra Marathon 12:02:11 h105
28.07 100km JPN9th North Okhotsk 100 km Marathon 11:36:00 h56
30.06 100km JPN34. Lake Saroma 100 km Ultramarathon 10:43:47 h637
12.05 100km JPN26th Ebisu-Daikoku 100 km Marathon 11:55:09 h152
24.03 100km JPN1st Ibaraki 100k Ultra Marathon 11:27:29 h216
2018
16.09 100km JPN18th Tango 100 km Ultramarathon 12:08:19 h322
22.07 100km JPN8th North Okhotsk 100 km Marathon 10:46:10 h55
24.06 100km JPN33. Lake Saroma 100 km Ultramarathon 9:57:51 h459
26.05 103km JPN7th Tojinbo 103 km Ultramarathon 11:58:10 h22
21.01 100km JPN28th Miyako 100 km Ultramarathon 11:55:37 h100
2017
23.07 100km JPN7th North Okhotsk 100 km Marathon 11:18:35 h59
25.06 100km JPN32. Lake Saroma 100 km Ultramarathon 11:17:49 h819
15.01 100km JPN27th Miyako 100 km Ultramarathon 11:56:52 h140
2016
18.09 100km JPN16th Tango 100 km Ultramarathon 12:05:24 h407
26.06 100km JPN31. Lake Saroma 100 km Ultramarathon 11:53:39 h1466
17.01 100km JPN26th Miyako 100 km Ultramarathon 13:32:57 h291
2015
13.09 100km JPN3rd 100 km Ultramarathon Hakusan-Shirakawago 13:26:18 h329
28.06 100km JPN30. Lake Saroma 100 km Ultramarathon 10:18:29 h602
11.01 100km JPN25th Miyako 100 km Ultramarathon 11:41:37 h168
2014
12.10 100km JPN10th Echigo Kubikino 100km Ultramarathon 11:02:31 h297
29.06 100km JPN29. Lake Saroma 100 km Ultramarathon 10:59:06 h471
12.01 100km JPN24th Miyako 100 km Ultramarathon 12:09:54 h151
2013
30.06 100km road race JPN28. Lake Saroma 100 km Ultramarathon 10:54:10 h603
2012
06.10 100km JPN9th Echigo Kubikino 100km Ultramarathon 12:11:43 h473
24.06 100km road race JPN27. Lake Saroma 100 km Ultramarathon 10:48:16 h631
2011
16.10 100km JPN17th River Shimanto 100km 11:26:56 h284