Tadao (古津忠雄) Kozu
ID 214362
Born : 1970 Cat. M55 Ultrarunner since 2009 JPN
34
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
23,5%
Rank quotient ?This runner's calculation uses 34 eligible race(s): Σ(rank − 1) = 4 934; Σ finishers = 20 974. 4 934 / 20 974 × 100 = 23.52%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed34
Km — ultra races3 400 km
Longest race100,0 km
25th River Shimanto 100km — 20/10/2019

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road100,0%

Records

100 km9h36'15

HISTORY

34 race(s)
DateRacePerf.Rk
2019
20.10 100km JPN25th River Shimanto 100km 12:38:55 h615
22.09 100km JPN29. Akita Nairiku 100km Marathon 11:29:57 h194
02.06 100km JPN2nd Nanto 100 km Ultramarathon 11:35:14 h59
28.04 100km JPN21. Okukumano 100 km Ultramarathon 11:34:27 h102
2018
23.09 100km JPN28. Akita Nairiku 100km Marathon 12:37:04 h337
17.06 100km JPN13. Okinoshima 100km Ultra Marathon 11:53:06 h102
22.04 100km JPN20. Okukumano 100 km Ultramarathon 11:48:48 h99
2017
18.06 100km JPN12. Okinoshima 100km Ultra Marathon 10:52:42 h67
28.05 100km JPN24th Ebisu-Daikoku 100 km Marathon 11:52:19 h128
23.04 100km JPN19. Okukumano 100 km Ultramarathon 11:57:21 h127
2016
25.09 100km JPN26. Akita Nairiku 100km Marathon 10:56:26 h109
19.06 100km JPN11. Okinoshima 100km Ultra Marathon 9:56:47 h32
29.05 100km JPN23rd Ebisu-Daikoku 100 km Marathon 9:36:15 h37
24.04 100km JPN18. Okukumano 100 km Ultramarathon 9:38:06 h24
2015
18.10 100km JPN21st River Shimanto 100km 9:58:32 h126
27.09 100km JPN25. Akita Nairiku 100km Marathon 10:22:41 h101
21.06 100km JPN10. Okinoshima 100km Ultra Marathon 10:28:28 h56
2014
28.09 100km JPN24. Akita Nairiku 100km Marathon 10:29:11 h116
15.06 100km JPN9. Okinoshima 100km Ultra Marathon 10:26:44 h26
2013
20.10 100km JPN19th River Shimanto 100km 9:41:54 h91
22.09 100km JPN23. Akita Nairiku 100km Marathon 10:32:22 h121
16.06 100km JPN8. Okinoshima 100km Ultra Marathon 11:01:28 h50
2012
23.09 100km JPN22. Akita Nairiku 100km Marathon 10:55:57 h176
17.06 100km JPN7. Okinoshima 100km Ultra Marathon 11:23:56 h62
27.05 100km JPN19th Ebisu-Daikoku 100 km Marathon 11:25:08 h83
2011
16.10 100km JPN17th River Shimanto 100km 9:59:42 h116
25.09 100km JPN21. Akita Nairiku 100km Marathon 10:45:56 h127
26.06 100km road race JPN26. Lake Saroma 100 km Ultramarathon 10:24:47 h433
29.05 100km JPN18th Ebisu-Daikoku 100 km Marathon 10:58:59 h100
2010
17.10 100km JPN16th River Shimanto 100km 11:34:11 h315
20.06 100km JPN5. Okinoshima 100km Ultra Marathon 12:57:24 h128
30.05 100km JPN17th Ebisu-Daikoku 100 km Marathon 12:19:01 h127
25.04 100km JPN20th Fuji 5 Lakes 100 km Challenge 11:53:24 h270
2009
20.09 100km JPN9th Tango 100 km Ultramarathon 12:28:31 h312