Taichi (小野寺太一) Onodera
Born : 1975 Cat. M50 Ultrarunner since 2004 JPN
26
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
13,2%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 3 446; Σ finishers = 26 077. 3 446 / 26 077 × 100 = 13.21%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed26
Km — ultra races2 618 km
> 100 km1
Longest race118,0 km

Km per year (ultra races)

100
1 race
2022
200
2 races
2023
200
2 races
2024
100
1 race
2025
100
1 race
2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M2
Longest winning streak1
Current streak0

Records

HISTORY

26 race(s)
DateRacePerf.Rk
2026
14.06 100km JPN20th Iwate Ginga 100km Marathon Challenge 9:10:06 h30
2025
08.06 100km JPN19th Iwate Ginga 100km Marathon Challenge 8:34:58 h13
2024
20.10 100km JPN30th River Shimanto 100km 8:57:54 h57
09.06 100km JPN18th Iwate Ginga 100km Marathon Challenge 9:01:27 h26
2023
15.10 100km JPN29th River Shimanto 100km 8:27:57 h18
11.06 100km JPN17th Iwate Ginga 100km Marathon Challenge 8:45:44 h12
2022
12.06 100km JPN16th Iwate Ginga 100km Marathon Challenge 8:47:42 h27
2019
20.10 100km JPN25th River Shimanto 100km 7:36:09 h7
09.06 100km JPN15th Iwate Ginga 100km Marathon Challenge 7:35:49 h2 🥈
2018
21.10 100km JPN24th River Shimanto 100km 8:38:40 h38
22.04 118km JPN28th Fuji 5 Lakes 118 km Challenge 10:32:10 h11
2017
15.10 100km JPN23rd River Shimanto 100km 8:58:50 h53
11.06 100km JPN13th Iwate Ginga 100km Marathon Challenge 13:16:35 h839
2015
18.10 100km JPN21st River Shimanto 100km 12:30:50 h573
14.06 100km JPN11th Iwate Ginga 100km Marathon Challenge 13:07:40 h609
2012
21.10 100km JPN18th River Shimanto 100km 12:42:20 h563
10.06 100km JPN8th Iwate Ginga 100km Marathon Challenge 10:55:42 h181
2011
16.10 100km JPN17th River Shimanto 100km 9:45:12 h88
2010
17.10 100km JPN16th River Shimanto 100km 8:34:37 h24
27.06 100km JPN25. Lake Saroma 100 km Ultramarathon 9:20:21 h121
13.06 100km JPN6th Iwate Ginga 100km Marathon Challenge 9:41:40 h47
2009
18.10 100km JPN15th River Shimanto 100km 7:56:44 h7
2007
14.10 100km JPN13th River Shimanto 100km 7:05:22 h1 🏆
2006
15.10 100km JPN12th River Shimanto 100km 7:54:21 h7
2005
16.10 100km JPN11th River Shimanto 100km 9:38:13 h90
2004
17.10 100km JPN10th River Shimanto 100km 8:29:33 h28