Yuko (楠瀬祐子) Kusunose
ID 288499
Born : 1979 Cat. W45 Ultrarunner since 2012 JPN
51
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
70
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
4
Countries visited ?CROCroatiaFRAFranceJPNJapanTPETaiwan
8,6%
Rank quotient ?This runner's calculation uses 55 eligible race(s): Σ(rank − 1) = 3 538; Σ finishers = 41 295. 3 538 / 41 295 × 100 = 8.57%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed55
Km — ultra races7 041 km
> 100 km23
> 160 km14
> 200 km10
> 24h16
Longest race251,0 km
20th River Road Foot Race 251 km — 3/5/2025

Km per year (ultra races)

524
4 races
2022
1 015
7 races
2023
311
2 races
2024
872
5 races
2025
342
2 races
2026

Race types (share of distance)

Road95,0%
Trail5,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F15
🏅 Top 33
🏅 Top 3 F25
Longest winning streak0
Current streak0

Records

50 km8h21'02100 km7h49'336 h67,50 km24 h228,29 km

HISTORY

59 race(s) · 10 split(s) nested
DateRacePerf.Rk
2026
23.05 24h JPNIAU 24h Asia and Oceania Championships Open 148.750 km61
28.03 24h JPN17th Jingu Gaien 24 Hour Challenge 193.172 km16
2025
06.09 24h JPN2nd Chitose Aoba 24 Hours Ultra Track 194.800 km7
21.06 24h JPN1st Masuda 24 Hours Ultra Truck Race 103.600 km25
24.05 24h JPN4th Hirosaki 24h Ultra Run 194.945 km17
03.05 251km JPN20th River Road Foot Race 251 km 43:52:43 h14
08.03 24h JPN16th Jingu Gaien 24 Hour Challenge 127.158 km71
2024
30.06 100km JPN39. Lake Saroma 100 km Ultramarathon 9:21:41 h145
21.05 24h JPN3rd Hirosaki 24h Ultra Run 211.439 km11
2023
01.12 24h TPEIAU 24h WC Taipei (all races combined) 213.180 km103
01.12 12h TPEIAU 24h WC Taipei - 12h Split 130.000 km72
01.12 100mi TPEIAU 24h WC Taipei - 100mi Split 16:25:31 h107
01.12 24h TPEIAU 24h WC Taipei 213.180 km98
17.09 100km JPN21th Tango 100 km Ultramarathon 9:53:45 h52
06.08 50km JPN1st Mount Akagi Trail Running Race 8:21:02 h43
25.06 100km JPN38. Lake Saroma 100 km Ultramarathon 9:27:29 h172
16.04 118km JPN33th Fuji 5 Lakes 118 km Challenge 11:56:39 h34
11.03 24h JPN15th Jingu Gaien 24 Hour Challenge 221.131 km14
2022
03.12 24h TPE21st Soochow/Taipei 24h Ultramarathon 222.590 km5
17.09 100km JPN1st Furano Biei Nature Run 100km 8:58:14 h2 🥈
03.07 8h JPN28th 8-Hour Endurance Race Tokorozawa 83.300 km5
17.04 118km JPN32th Fuji 5 Lakes 118 km Challenge 10:28:06 h7
2021
04.07 8h JPN27th 8-Hour Endurance Race Tokorozawa 98.000 km4
10.04 70km JPN16th Toda Saiko 70 km 5:07:17 h13
2020
05.07 8h JPN26th 8-Hour Endurance Race Tokorozawa 93.100 km3 🥉
2019
26.10 6h FRA7ème IAU 24h WC, 24 heures d'Albi - 6h Split 67.198 km41
26.10 12h FRA7ème IAU 24h WC, 24 heures d'Albi - 12h Split 126.838 km49
26.10 24h FRA7ème IAU 24h WC, 24 heures d'Albi 228.289 km57
08.09 100km JPN7th 100 km Ultramarathon Hakusan-Shirakawago 9:30:09 h17
30.06 100km JPN34. Lake Saroma 100 km Ultramarathon 8:58:24 h128
02.06 78km JPN26. Ultramarathon Okumusashi 6:48:46 h45
19.05 100km JPN25th Yatsugatake Nobeyama 100 km 9:11:04 h15
21.04 118km JPN29th Fuji 5 Lakes 118 km Challenge 10:37:50 h13
2018
10.11 24h JPN13th Jingu Gaien 24 Hour Challenge 221.993 km13
08.09 100km CROCro100 - total (WC,WMA,open) 7:49:33 h67
08.09 100km CROWMA 100km, Sveti Martin 7:49:33 h35
08.09 100km CRO30. IAU 100km WC, Sveti Martin 7:49:33 h63
24.06 100km JPN33. Lake Saroma 100 km Ultramarathon 7:55:19 h46
02.06 6h JPN17. Green Charity Marathon Tokyo - Standard Run 6H 67.500 km3 🥉
22.04 118km JPN28th Fuji 5 Lakes 118 km Challenge 10:32:30 h12
2017
11.11 24h JPN12th Jingu Gaien 24 Hour Challenge 215.903 km17
02.07 100km JPN1st Nikko 100km Ultramarathon 8:54:50 h19
25.06 100km JPN32. Lake Saroma 100 km Ultramarathon 8:08:59 h47
23.04 118km JPN27th Fuji 5 Lakes 118 km Challenge 10:56:33 h21
2016
17.12 24h JPN11th Jingu Gaien 24 Hour Challenge 198.124 km34
24.09 24h JPN19. Hiratsuka 24 hour race 202.410 km4
26.06 100km JPN31. Lake Saroma 100 km Ultramarathon 8:30:09 h98
24.04 118km JPN26th Fuji 5 Lakes 118 km Challenge 10:27:10 h17
2015
28.06 100km JPN30. Lake Saroma 100 km Ultramarathon 8:47:38 h141
22.06 77km JPN22. Ultramarathon Okumusashi 7:42:45 h192
17.05 100km JPN21st Yatsugatake Nobeyama 100 km 9:51:20 h70
19.04 100km JPN25th Fuji 5 Lakes 100 km Challenge 9:04:01 h35
2014
18.05 100km JPN20th Yatsugatake Nobeyama 100 km 10:40:04 h109
20.04 100km JPN24th Fuji 5 Lakes 100 km Challenge 9:10:44 h35
2013
28.07 77km JPN20. Ultramarathon Okumusashi 7:19:58 h89
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 11:52:23 h270
21.04 100km JPN23rd Fuji 5 Lakes 100 km Challenge 9:59:52 h44
2012
05.08 77km JPN19. Ultramarathon Okumusashi 8:39:11 h236
22.04 100km JPN22nd Fuji 5 Lakes 100 km Challenge 13:05:39 h679