Naoki (竹内直樹) Takeuchi
ID 77295
Born : 1971 Cat. M55 Ultrarunner since 2006 JPN
26
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
42
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
17,3%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 1 467; Σ finishers = 8 459. 1 467 / 8 459 × 100 = 17.34%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed26
Km — ultra races2 270 km
> 100 km1
Longest race120,0 km
20th Muraoka 120 km Ultra Marathon — 24/9/2017

Km per year (ultra races)

57
1 race
2022
100
1 race
2023
100
1 race
2024
345
4 races
2025
2026

Race types (share of distance)

Road47,8%
Trail52,2%

Records

100 km9h25'53

HISTORY

26 race(s)
DateRacePerf.Rk
2025
02.11 100km JPN5th OSJ Kami 100 20:01:50 h76
28.09 100km JPN28th Muraoka 100 km Ultra Marathon 11:08:53 h61
06.07 45km JPN1st Himebotaru Torokawadaira trail run 6:45:14 h22
25.05 100km JPN31th Ebisu-Daikoku 100 km Marathon 9:25:53 h34
2024
29.09 100km JPN27th Muraoka 100 km Ultra Marathon 11:42:36 h68
2023
24.09 100km JPN26th Muraoka 100 km Ultra Marathon 10:57:15 h38
2022
05.06 57km JPN4th Nagi Peaks Tough Trail Challenge 11:36:15 h99
2019
27.10 73km JPN10th OSJ Hyonosen Mountains Trail Race 12:26:02 h76
15.09 100km JPN19th Tango 100 km Ultramarathon 10:47:40 h137
2018
20.10 73km JPN9th OSJ Hyonosen Mountains Trail Race 11:36:34 h66
03.06 48km JPN1st Nagi Peaks Tough Trail Challenge 10:37:26 h60
2017
24.09 120km JPN20th Muraoka 120 km Ultra Marathon 13:41:37 h118
2015
18.10 73km JPN6th OSJ Hyonosen Mountains Trail Race 9:54:10 h50
27.09 100km JPN18th Muraoka 100 km Ultra Marathon 10:04:51 h26
2014
19.10 73km JPN5th OSJ Hyonosen Mountains Trail Race 10:08:14 h47
28.09 100km JPN17th Muraoka 100 km Ultra Marathon 10:25:46 h30
2013
20.10 71km JPN4th OSJ Hyonosen Mountains Trail Race 10:56:49 h57
29.09 66km JPN16th Muraoka 66 km Ultra Marathon 6:12:51 h11
2012
28.10 71km JPN3rd OSJ Hyonosen Mountains Trail Race 9:44:13 h19
27.05 100km JPN19th Ebisu-Daikoku 100 km Marathon 10:33:49 h48
2011
29.05 100km JPN18th Ebisu-Daikoku 100 km Marathon 9:32:46 h38
2010
27.06 100km JPN10th Nichinan Orochi 100 km Marathon 10:50:27 h84
2009
28.06 100km JPN9th Nichinan Orochi 100 km Marathon 10:43:24 h45
2008
22.06 100km JPN8th Nichinan Orochi 100 km Marathon 11:08:55 h76
2007
24.06 100km JPN7th Nichinan Orochi 100 km Marathon 10:45:56 h58
2006
25.06 100km JPN6th Nichinan Orochi 100 km Marathon 10:11:08 h49