Chizuko (谷本千鶴子) Tanimoto
Born : 1970 Cat. W55 Ultrarunner since 2010 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
53,6%
Rank quotient ?This runner's calculation uses 36 eligible race(s): Σ(rank − 1) = 22 325; Σ finishers = 41 659. 22 325 / 41 659 × 100 = 53.59%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed36
Km — ultra races3 753 km
> 100 km5
> 160 km1
Longest race177,0 km

Km per year (ultra races)

200
2 races
2022
200
2 races
2023
200
2 races
2024
100
1 race
2025
100
1 race
2026

Race types (share of distance)

Road100,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0

HISTORY

36 race(s)
DateRacePerf.Rk
2026
28.06 100km JPN41. Lake Saroma 100 km Ultramarathon 12:46:54 h2241
2025
29.06 100km JPN40. Lake Saroma 100 km Ultramarathon 12:42:24 h1494
2024
22.09 100km JPN32. Akita Nairiku 100km Marathon 11:55:47 h136
30.06 100km JPN39. Lake Saroma 100 km Ultramarathon 12:01:32 h963
2023
24.09 100km JPN31. Akita Nairiku 100km Marathon 12:45:43 h394
25.06 100km JPN38. Lake Saroma 100 km Ultramarathon 12:05:04 h1052
2022
18.12 100km JPN5th Okinawa 100km Ultramarathon 12:40:23 h238
25.09 100km JPN30. Akita Nairiku 100km Marathon 12:59:29 h358
2020
19.01 100km JPN30th Miyako 100 km Ultramarathon 12:21:40 h173
2019
22.09 100km JPN29. Akita Nairiku 100km Marathon 12:44:47 h453
13.07 177km JPN4th Michinoku Tsugaru Journey Run 177K 36:24:00 h115
30.06 100km JPN34. Lake Saroma 100 km Ultramarathon 12:17:06 h1501
2018
23.09 100km JPN28. Akita Nairiku 100km Marathon 12:40:40 h359
24.06 100km JPN33. Lake Saroma 100 km Ultramarathon 12:08:50 h1472
2017
24.09 100km JPN27. Akita Nairiku 100km Marathon 12:55:22 h478
25.06 100km JPN32. Lake Saroma 100 km Ultramarathon 12:25:17 h1537
2016
25.09 100km JPN26. Akita Nairiku 100km Marathon 12:39:59 h351
26.06 100km JPN31. Lake Saroma 100 km Ultramarathon 11:09:14 h961
17.01 100km JPN26th Miyako 100 km Ultramarathon 12:59:01 h241
2015
27.09 100km JPN25. Akita Nairiku 100km Marathon 11:52:12 h305
28.06 100km JPN30. Lake Saroma 100 km Ultramarathon 10:37:53 h719
2014
28.09 100km JPN24. Akita Nairiku 100km Marathon 12:42:40 h495
29.06 100km JPN29. Lake Saroma 100 km Ultramarathon 12:53:10 h1666
2013
22.09 100km JPN23. Akita Nairiku 100km Marathon 11:48:55 h276
30.06 100km road race JPN28. Lake Saroma 100 km Ultramarathon 10:21:35 h416
03.05 140km JPN25. Yamaguchi 100 Hagi-O-Kan Maranic 140 km 23:37:26 h239
2012
23.09 100km JPN22. Akita Nairiku 100km Marathon 10:08:49 h96
24.06 100km road race JPN27. Lake Saroma 100 km Ultramarathon 10:42:33 h583
22.04 112km JPN22nd Fuji 5 Lakes 112 km Challenge 13:37:02 h267
2011
25.09 100km JPN21. Akita Nairiku 100km Marathon 12:57:13 h634
21.08 100km JPN1st North Okhotsk 100 km Marathon 10:15:08 h23
26.06 100km road race JPN26. Lake Saroma 100 km Ultramarathon 10:09:01 h360
30.04 112km JPN21st Fuji 5 Lakes 112 km Challenge 12:49:15 h154
2010
26.09 100km JPN20. Akita Nairiku 100km Marathon 12:56:36 h703
27.06 100km JPN25. Lake Saroma 100 km Ultramarathon 11:36:28 h663
25.04 112km JPN20th Fuji 5 Lakes 112 km Challenge 14:10:20 h245