Kazuhiro (吉清一博) Yoshikiyo
Born : 1976 Cat. M50 Ultrarunner since 2010 JPN
46
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
66
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
11,0%
Rank quotient ?This runner's calculation uses 47 eligible race(s): Σ(rank − 1) = 3 413; Σ finishers = 30 969. 3 413 / 30 969 × 100 = 11.02%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed47
Km — ultra races6 078 km
> 100 km17
> 160 km11
> 200 km10
> 24h2
Longest race514,0 km

Km per year (ultra races)

48
1 race
2022
561
2 races
2023
100
1 race
2024
2025
100
1 race
2026

Race types (share of distance)

Road77,5%
Trail22,5%

Wins & podiums (ultra)

🏆 Win5
🏆 Win M5
🏅 Top 39
🏅 Top 3 M9
Longest winning streak1
Current streak0

HISTORY

47 race(s)
DateRacePerf.Rk
2026
28.06 100km JPN41. Lake Saroma 100 km Ultramarathon 10:41:20 h781
2024
30.06 100km JPN39. Lake Saroma 100 km Ultramarathon 9:56:53 h288
2023
04.11 48km JPN5th Ninja Trail Run 7:02:34 h42
30.04 513km JPN18th River Road Foot Race 513 km 4d 18:41:39 h16
2022
06.11 48km JPN4th Ninja Trail Run 6:29:57 h20
2020
22.02 206km JPN10th Little Edo Oedo 205k 22:54:25 h1 🏆
2019
03.11 48km JPN3rd Ninja Trail Run 5:55:08 h18
30.06 100km JPN34. Lake Saroma 100 km Ultramarathon 9:34:06 h248
30.04 514km JPN15th River Road Foot Race 514 km 4d 14:40:28 h27
23.02 204km JPN9th Little Edo Oedo 200k 23:09:43 h2 🥈
2018
10.11 24h JPN13th Jingu Gaien 24 Hour Challenge 66.227 km139
21.07 67.5km JPN6th Kirishima Ebino-kougen Extreme Trail 8:51:57 h17
24.06 100km JPN33. Lake Saroma 100 km Ultramarathon 8:31:45 h89
30.04 514km JPN14th River Road Foot Race 514 km 4d 02:13:02 h5
03.03 204km JPN8th Little Edo Oedo 200k 22:34:33 h3 🥉
2017
11.11 24h JPN12th Jingu Gaien 24 Hour Challenge 219.066 km12
17.09 52km JPN9th Shinetsu Five Mountains Trail 110km 5:23:31 h19
25.06 100km JPN32. Lake Saroma 100 km Ultramarathon 9:58:51 h396
03.05 254km JPN13th River Road Foot Race 254 km 33:40:27 h1 🏆
08.04 70km JPN12th Toda Saiko 70 km 5:28:50 h16
2016
26.06 100km JPN31. Lake Saroma 100 km Ultramarathon 7:49:52 h44
24.04 70km JPN2nd Okumikawa Power Trail 9:43:04 h69
2015
17.10 112km JPN13th Mt. Rocco Cannonball Run - 112 km Power 12:12:00 h1 🏆
13.09 50km JPN8th OSJ Adatara Trail 50K 7:52:23 h19
29.08 100km JPNKISO Great Traverse 100 km Ultra Marathon 11:15:10 h49
28.06 100km JPN30. Lake Saroma 100 km Ultramarathon 8:37:24 h110
12.04 63km JPN1st Okumikawa Power Trail 8:20:44 h8
29.03 56km JPN12th Mt. Rocco Cannonball Run - 56 km Speed 6:26:55 h25
2014
25.10 112km JPN11th Mt. Rocco Cannonball Run - 112 km Power 12:44:29 h3 🥉
20.07 63km JPN2nd Kirishima Ebino-kougen Extreme Trail 7:31:37 h7
29.06 100km JPN29. Lake Saroma 100 km Ultramarathon 8:18:29 h41
30.04 265km JPN10th River Road Foot Race 265 km 37:40:12 h1 🏆
29.03 112km JPN10th Mt. Rocco Cannonball Run - 112 km Power 12:59:00 h4
2013
15.09 110km JPN5th Shinetsu Five Mountains Trail 110km 13:12:34 h17
21.07 60km JPN1st Kirishima Ebino-kougen Extreme Trail 7:42:54 h2 🥈
30.06 100km road race JPN28. Lake Saroma 100 km Ultramarathon 9:10:46 h144
26.04 100mi JPN2nd Ultra-Trail Mount Fuji 42:22:18 h477
23.03 112km JPN8th Mt. Rocco Cannonball Run - 112 km Power 17:17:00 h41
10.03 72km JPN1st Izu Trail Journey 8:49:13 h66
02.03 203km JPN3rd Little Edo Oedo 200k 29:44:33 h33
2012
09.12 6h JPN1st Coedo Kawagoe 6 Hours Run 74.530 km1 🏆
11.11 50km JPN4th Kanna Mountain Run 6:05:52 h5
16.09 110km JPN4th Shinetsu Five Mountains Trail 110km 15:18:36 h42
03.06 50km JPN4th OSJ Okukuji Trail 50k 8:58:05 h31
2011
30.10 45km JPN3rd Shinshu-Togakushi Trail Run Race 5:28:56 h9
02.10 50km JPN5th Madarao Forest Trails 50km 5:17:00 h24
2010
04.07 50km JPN2nd OSJ Shiga Kogen Trail 50K 8:13:46 h47