Yukinari (渡辺幸成) Watanabe
Born : 1964 Cat. M60 Ultrarunner since 2007 JPN
36
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
35,6%
Rank quotient ?This runner's calculation uses 36 eligible race(s): Σ(rank − 1) = 11 215; Σ finishers = 31 500. 11 215 / 31 500 × 100 = 35.60%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed36
Km — ultra races3 593 km
> 100 km9
Longest race120,0 km

Km per year (ultra races)

2022
100
1 race
2023
200
2 races
2024
320
3 races
2025
220
2 races
2026

Race types (share of distance)

Road100,0%

HISTORY

36 race(s)
DateRacePerf.Rk
2026
31.05 100km JPN2nd Shimanami Surround 100km 14:54:31 h93
26.04 120km JPN9th Muroto Aanan 120 km 14:09:14 h11
2025
21.12 100km JPN8th Okinawa 100km Ultramarathon 12:09:12 h246
19.10 100km JPN31th River Shimanto 100km 12:47:26 h538
27.04 120km JPN8th Muroto Aanan 120 km 13:40:04 h11
2024
13.10 100km JPN15th Echigo Kubikino 100km Ultramarathon 11:46:05 h247
09.06 100km JPN18th Iwate Ginga 100km Marathon Challenge 11:51:17 h250
2023
24.09 100km JPN31. Akita Nairiku 100km Marathon 12:08:22 h245
2019
15.12 100km JPN4th Okinawa 100km Ultramarathon 12:16:25 h201
15.09 100km JPN19th Tango 100 km Ultramarathon 12:50:10 h449
2018
16.12 100km JPN3rd Okinawa 100km Ultramarathon 11:02:19 h76
22.07 100km JPN8th North Okhotsk 100 km Marathon 10:42:56 h52
03.06 78km JPN25. Ultramarathon Okumusashi 8:44:16 h288
2017
04.06 78km JPN24. Ultramarathon Okumusashi 8:03:19 h214
23.04 118km JPN27th Fuji 5 Lakes 118 km Challenge 12:54:13 h121
2016
09.10 100km JPN11th Echigo Kubikino 100km Ultramarathon 10:32:57 h206
05.06 78km JPN23. Ultramarathon Okumusashi 8:18:33 h318
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 13:44:15 h263
2015
18.10 100km JPN21st River Shimanto 100km 10:50:26 h226
22.06 77km JPN22. Ultramarathon Okumusashi 8:30:44 h372
11.01 100km JPN25th Miyako 100 km Ultramarathon 11:04:28 h109
2014
12.10 100km JPN10th Echigo Kubikino 100km Ultramarathon 13:27:17 h1300
08.06 100km JPN3rd Hida Takayama 100 km Ultramarathon 12:50:27 h555
20.04 108km JPN24th Fuji 5 Lakes 108 km Challenge 12:38:14 h239
2012
24.06 100km road race JPN27. Lake Saroma 100 km Ultramarathon 11:29:43 h951
22.04 112km JPN22nd Fuji 5 Lakes 112 km Challenge 13:05:07 h198
2011
26.06 100km road race JPN26. Lake Saroma 100 km Ultramarathon 11:25:07 h811
30.04 112km JPN21st Fuji 5 Lakes 112 km Challenge 12:59:55 h172
2010
09.10 100km JPN8th Echigo Kubikino 100km Ultramarathon 11:03:18 h245
27.06 100km JPN25. Lake Saroma 100 km Ultramarathon 11:54:39 h825
25.04 112km JPN20th Fuji 5 Lakes 112 km Challenge 11:53:50 h73
2009
18.10 100km JPN15th River Shimanto 100km 10:50:04 h216
26.04 112km JPN19th Fuji 5 Lakes 112 km Challenge 13:04:25 h103
2008
11.10 100km JPN7th Echigo Kubikino 100km Ultramarathon 12:15:29 h367
2007
14.09 6h JPN10. Hiratsuka 6 hour race 50.170 km57
24.06 100km JPN22. Lake Saroma 100 km Ultramarathon 10:53:52 h603