Setsuko (黒岩節子) Kuroiwa
ID 841805
Born : 1964 Cat. W60 Ultrarunner since 2016 JPN
48
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
49,4%
Rank quotient ?This runner's calculation uses 49 eligible race(s): Σ(rank − 1) = 7 488; Σ finishers = 15 163. 7 488 / 15 163 × 100 = 49.38%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed49
Km — ultra races3 187 km
> 100 km1
Longest race102,0 km
4th Okuizumo Ultra Orochi 100km Tooashi — 14/4/2018

Km per year (ultra races)

385
6 races
2022
320
5 races
2023
404
7 races
2024
250
4 races
2025
204
3 races
2026

Race types (share of distance)

Road100,0%

Records

50 km5h39'02100 km12h38'1150 mi10h35'41

HISTORY

49 race(s)
DateRacePerf.Rk
2026
21.06 100km JPN19. Okinoshima 100km Ultra Marathon 13:46:09 h195
07.06 53.7km JPN24th Rishiri Island Ultra Marathon 6:37:30 h221
24.01 50km JPN36th Miyako 50 km Ultramarathon 5:50:48 h64
2025
21.12 50km JPN8th Okinawa 50km Ultramarathon 6:22:32 h104
18.10 50km JPN8th Iki 50 km Ultra Marathon 6:29:35 h92
15.06 100km JPN18. Okinoshima 100km Ultra Marathon 13:45:12 h181
26.01 50km JPN35th Miyako 50 km Ultramarathon 5:39:02 h38
2024
15.12 50km JPN7th Okinawa 50km Ultramarathon 6:15:15 h85
19.10 50km JPN7th Iki 50 km Ultra Marathon 6:16:22 h92
30.06 50km JPN39. Lake Saroma 50 km Ultramarathon 6:10:55 h106
16.06 100km JPN17. Okinoshima 100km Ultra Marathon 13:53:34 h208
02.06 53.7km JPN22th Rishiri Island Ultra Marathon 6:30:08 h121
21.01 50km JPN34th Miyako 50 km Ultramarathon 5:45:19 h37
14.01 50km JPN7th Yakushima Ultramarathon 50 km 5:52:54 h9
2023
17.12 50km JPN6th Okinawa 50km Ultramarathon 6:17:31 h69
21.10 50km JPN6th Iki 50 km Ultra Marathon 6:06:48 h98
18.06 100km JPN16. Okinoshima 100km Ultra Marathon 14:08:38 h199
23.04 70km JPN14th 70 km Ultra Maranic Osaka 8:32:00 h101
22.01 50km JPN33th Miyako 50 km Ultramarathon 5:51:00 h32
2022
18.12 50km JPN5th Okinawa 50km Ultramarathon 6:06:09 h53
15.10 50km JPN5th Iki 50 km Ultra Marathon 5:56:30 h62
29.09 45km JPN25th Muraoka 45 km Ultra Marathon 5:16:38 h355
19.06 100km JPN15. Okinoshima 100km Ultra Marathon 13:28:01 h115
15.05 60km JPN8th Ishigaki Island Ultra Marathon 7:44:45 h106
04.05 80km JPN16th Nagasaki Tachibana Gulf Coast Super Maranic 80 10:35:41 h40
2020
19.01 50km JPN30th Miyako 50 km Ultramarathon 5:47:47 h54
2019
15.12 50km JPN4th Okinawa 50km Ultramarathon 5:44:34 h36
15.09 60km JPN19th Tango 60 km Ultramarathon 8:24:29 h379
28.07 50km JPN9th North Okhotsk 50 km Marathon 5:57:02 h49
16.06 100km JPN14. Okinoshima 100km Ultra Marathon 12:38:11 h209
09.06 50km JPN3rd Koyasan and Ryujin-Onsen 50 km Ultra Marathon 6:02:21 h153
12.05 60km JPN5th Ishigaki Island Ultra Marathon 7:49:33 h75
13.04 70km JPN14th Toda Saiko 70 km 8:13:14 h359
20.01 50km JPN29th Miyako 50 km Ultramarathon 5:44:53 h34
2018
16.12 50km JPN3rd Okinawa 50km Ultramarathon 5:53:29 h22
21.10 60km JPN24th River Shimanto 60km 7:01:43 h129
22.07 50km JPN8th North Okhotsk 50 km Marathon 6:08:18 h67
17.06 100km JPN13. Okinoshima 100km Ultra Marathon 13:46:12 h291
03.06 60km JPN6th Tokyo Shibamata 60 km 7:21:03 h265
26.05 52km JPN7th Tojinbo 52 km Ultramarathon 6:35:52 h26
20.05 71km JPN24th Yatsugatake Nobeyama 71 km 9:50:36 h125
14.04 102km JPN4th Okuizumo Ultra Orochi 100km Tooashi 15:05:48 h297
2017
15.10 60km JPN6th Noto Peninsula 60 km Ultra Marathon 7:42:00 h54
10.09 70km JPN5th 70 km Ultramarathon Hakusan-Shirakawago 9:31:27 h142
23.07 50km JPN7th North Okhotsk 50 km Marathon 6:35:10 h86
18.06 100km JPN12. Okinoshima 100km Ultra Marathon 13:41:06 h254
04.06 60km JPN5th Tokyo Shibamata 60 km 7:09:43 h343
23.04 100km JPN27th Fuji 5 Lakes 100 km Challenge 13:27:13 h1027
2016
19.06 100km JPN11. Okinoshima 100km Ultra Marathon 13:41:30 h278