Tomoko (久保智子) Kubo
ID 118904
Born : 1966 Cat. W60 Ultrarunner since 2005 JPN
37
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
51,9%
Rank quotient ?This runner's calculation uses 37 eligible race(s): Σ(rank − 1) = 8 681; Σ finishers = 16 726. 8 681 / 16 726 × 100 = 51.90%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed37
Km — ultra races3 243 km
> 100 km7
> 160 km1
> 200 km1
Longest race203,0 km
4th Little Edo Oedo 200k — 1/3/2014

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road86,1%
Trail13,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F2
Longest winning streak0
Current streak0

Records

50 km10h23'34100 km11h42'2312 h84,40 km

HISTORY

37 race(s)
DateRacePerf.Rk
2015
12.07 50.5km JPN2nd Trainic world Hanno-Ogose Trail Run 50km 10:23:34 h52
22.06 77km JPN22. Ultramarathon Okumusashi 9:19:58 h630
2014
14.09 142km JPN17th Karisakatoge beyond Chichibu Run 23:18:37 h132
27.07 77km JPN21. Ultramarathon Okumusashi 10:46:07 h682
06.07 8h JPN20th 8-Hour Endurance Race Tokorozawa - 3 tai 58.428 km54
12.04 70km JPN9th Toda Saiko 70 km 8:09:21 h284
01.03 203km JPN4th Little Edo Oedo 200k 32:43:54 h79
2013
15.09 142km JPN16th Karisakatoge beyond Chichibu Run 24:47:42 h152
28.07 77km JPN20. Ultramarathon Okumusashi 9:48:33 h676
19.05 100km JPN19th Yatsugatake Nobeyama 100 km 13:17:00 h696
13.04 70km JPN8th Toda Saiko 70 km 8:09:02 h211
2012
06.10 100km JPN9th Echigo Kubikino 100km Ultramarathon 12:52:13 h725
2010
17.09 143km JPN12th Karisakatoge beyond Chichibu Run 21:41:28 h33
16.05 100km JPN16th Yatsugatake Nobeyama 100 km 12:21:19 h371
2009
19.09 143km JPN12th Karisakatoge beyond Chichibu Run 22:26:05 h43
30.08 52km JPN56. Tsurunuma 52 km 5:52:24 h94
02.08 75km JPN16. Ultramarathon Okumusashi 8:46:20 h361
17.05 100km JPN15th Yatsugatake Nobeyama 100 km 13:24:52 h494
2008
14.09 143km JPN11th Karisakatoge beyond Chichibu Run 23:15:54 h59
31.08 52km JPN54. Tsurunuma 52 km 7:09:02 h98
03.08 75km JPN15. Ultramarathon Okumusashi 9:37:59 h435
06.07 8h JPN14th 8-Hour Endurance Race Tokorozawa 61.674 km78
06.04 52km JPN53. Tsurunuma 52 km 6:06:24 h46
2007
16.09 141km JPN10th Karisakatoge beyond Chichibu Run 23:12:34 h54
26.08 52km JPN52. Tsurunuma 52 km 5:56:46 h57
05.08 75km JPN14. Ultramarathon Okumusashi 9:03:45 h281
01.07 8h JPN13th 8-Hour Endurance Race Tokorozawa 71.500 km38
20.05 100km JPN13th Yatsugatake Nobeyama 100 km 12:07:54 h236
01.04 52km JPN51. Tsurunuma 52 km 5:24:36 h17
2006
09.10 100km JPN6th Echigo Kubikino 100km Ultramarathon 11:42:23 h253
27.08 100km JPN50. Tsurunuma 100 km 12:18:28 h45
13.08 75km JPN13. Ultramarathon Okumusashi 9:51:33 h408
02.07 8h JPN12th 8-Hour Endurance Race Tokorozawa 49.500 km156
02.04 52km JPN49. Tsurunuma 52 km 5:23:56 h20
2005
28.08 52km JPN48. Tsurunuma 52 km 6:22:24 h87
07.08 75km JPN12. Ultramarathon Okumusashi 10:43:27 h574
11.06 12h JPN3rd Akiruno 12 Hour Race Japan Cup 84.400 km7