Yasunaga (安澤泰永) Anzawa
Born : 1983 Cat. M40 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.
54
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
8,0%
Rank quotient ?This runner's calculation uses 46 eligible race(s): Σ(rank − 1) = 2 928; Σ finishers = 36 461. 2 928 / 36 461 × 100 = 8.03%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed46
Km — ultra races4 709 km
> 100 km8
Longest race118,0 km

Km per year (ultra races)

518
5 races
2022
300
3 races
2023
2024
2025
100
1 race
2026

Race types (share of distance)

Road91,5%
Trail8,5%

Records

HISTORY

46 race(s)
DateRacePerf.Rk
2026
08.03 100km JPN8th Ibaraki 100k Ultra Marathon 10:10:43 h128
2023
24.09 100km JPN31. Akita Nairiku 100km Marathon 10:05:19 h60
23.04 100km JPN4th Yamadera Zao 100 km Ultra Marathon 10:50:54 h5
12.03 100km JPN5th Ibaraki 100k Ultra Marathon 9:28:21 h30
2022
09.10 100km JPN14th Echigo Kubikino 100km Ultramarathon 9:40:57 h49
25.09 100km JPN30. Akita Nairiku 100km Marathon 9:38:58 h37
12.06 100km JPN16th Iwate Ginga 100km Marathon Challenge 9:16:52 h43
22.05 100km JPN28th Yatsugatake Nobeyama 100 km 10:36:08 h84
17.04 118km JPN32th Fuji 5 Lakes 118 km Challenge 11:39:31 h30
2019
15.12 100km JPN4th Okinawa 100km Ultramarathon 9:49:41 h44
08.09 100km JPN7th 100 km Ultramarathon Hakusan-Shirakawago 11:43:38 h103
21.04 118km JPN29th Fuji 5 Lakes 118 km Challenge 11:36:23 h36
24.03 100km JPN1st Ibaraki 100k Ultra Marathon 9:22:25 h49
2018
09.09 100km JPN6th 100 km Ultramarathon Hakusan-Shirakawago 9:44:30 h37
20.05 100km JPN24th Yatsugatake Nobeyama 100 km 9:57:07 h78
22.04 118km JPN28th Fuji 5 Lakes 118 km Challenge 11:27:33 h25
2017
10.09 100km JPN5th 100 km Ultramarathon Hakusan-Shirakawago 9:17:25 h17
11.06 100km JPN6th Hida Takayama 100 km Ultramarathon 9:02:30 h35
21.05 100km JPN23rd Yatsugatake Nobeyama 100 km 9:57:45 h44
23.04 118km JPN27th Fuji 5 Lakes 118 km Challenge 11:13:09 h29
2016
18.12 100km JPN1st Okinawa 100km Ultramarathon 9:07:59 h10
11.09 100km JPN4th 100 km Ultramarathon Hakusan-Shirakawago 9:27:02 h14
12.06 100km JPN12th Iwate Ginga 100km Marathon Challenge 8:55:08 h21
22.05 100km JPN22nd Yatsugatake Nobeyama 100 km 9:22:21 h26
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 10:50:07 h25
2015
18.10 100km JPN4th Noto Peninsula 100 km Ultra Marathon 10:12:50 h26
20.09 100km JPN15th Tango 100 km Ultramarathon 9:44:41 h98
14.06 100km JPN11th Iwate Ginga 100km Marathon Challenge 10:37:48 h162
19.04 118km JPN25th Fuji 5 Lakes 118 km Challenge 12:33:24 h86
2014
12.10 100km JPN10th Echigo Kubikino 100km Ultramarathon 9:02:06 h46
28.09 100km JPN24. Akita Nairiku 100km Marathon 9:21:02 h53
14.09 100km JPN14th Tango 100 km Ultramarathon 9:18:47 h55
27.07 77km JPN21. Ultramarathon Okumusashi 8:05:35 h103
08.06 100km JPN10th Iwate Ginga 100km Marathon Challenge 9:47:11 h83
18.05 100km JPN20th Yatsugatake Nobeyama 100 km 10:40:57 h113
01.03 112km JPN4th Oedo Night run 112k 15:19:46 h12
2013
20.10 100km JPN2nd Noto Peninsula 100 km Ultra Marathon 10:02:47 h32
22.09 100km JPN23. Akita Nairiku 100km Marathon 10:11:53 h96
30.06 100km road race JPN28. Lake Saroma 100 km Ultramarathon 9:22:20 h176
09.06 100km JPN9th Iwate Ginga 100km Marathon Challenge 10:32:27 h151
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 11:27:56 h195
21.04 112km JPN23rd Fuji 5 Lakes 112 km Challenge 11:57:30 h26
2012
06.10 100km JPN9th Echigo Kubikino 100km Ultramarathon 9:39:00 h66
10.06 100km JPN8th Iwate Ginga 100km Marathon Challenge 10:04:36 h93
2011
12.06 100km JPN7th Iwate Ginga 100km Marathon Challenge 10:39:42 h112
2010
13.06 100km JPN6th Iwate Ginga 100km Marathon Challenge 11:41:38 h131