Toyoko (大室豊子) Omuro
ID 342445
Born : 1966 Cat. W60 Ultrarunner since 2012 JPN
56
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
59
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
62,7%
Rank quotient ?This runner's calculation uses 65 eligible race(s): Σ(rank − 1) = 15 043; Σ finishers = 23 995. 15 043 / 23 995 × 100 = 62.69%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed67
Km — ultra races6 037 km
> 100 km20
> 160 km3
> 200 km1
Longest race225,0 km
14th Gunma 100km Walk — 10/5/2025

Km per year (ultra races)

326
4 races
2022
332
3 races
2023
1 502
14 races
2024
1 056
10 races
2025
857
8 races
2026

Race types (share of distance)

Road58,2%
Trail8,4%
Stage1,8%
Ult.Walk31,5%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F7
Longest winning streak0
Current streak0

Records

50 km7h52'02100 km13h19'58100 mi19h18'0112 h90,22 km

HISTORY

67 race(s)
DateRacePerf.Rk
2026
16.05 102km JPN5th Kobe Akashi Ultra Marathon 22:01:54 h91
02.05 200km JPN9th Ultra Walking around Lake Biwa 46:59:17 h82
04.04 100km JPN5th Miura-Halbinsel-Tour Ultra Walking 19:20:48 h139
28.03 100km JPN2nd Tokyo Story Ultra Walking 23:38:59 h105
07.03 100km JPN6th Nihondaira and Suruganokuni Ultra Run 20:59:23 h43
21.02 105km JPN1st Lake Hamana and the Enshu Tokaido Ultra 23:43:07 h121
01.02 48km JPN4. Minuma Challenge 48 6:31:17 h15
10.01 102km JPN3rd Nara Mahoroba Ultra Walking 21:58:46 h135
2025
20.12 50km JPN2nd One-day walking - Kanto Chiho 7:52:02 h53
23.08 100km JPN1st Summer Karuizawa and Joshu Nakasendo Ultra Walking 22:52:57 h57
02.08 50km JPN1st Chiba Ultra Marathon 50km Night Run 8:28:59 h43
19.07 102km JPN2nd Shinshu Nakasendo 12 Stations Ultra Race 20:46:36 h30
07.06 125km JPN9th Fujisan Issyu Walking 25:42:28 h131
24.05 100km JPN7th Tsukuba Rinrin Road 100km 17:40:33 h49
10.05 225km JPN14th Gunma 100km Walk 19:45:47 h84
05.04 102km JPN4th Miura-Halbinsel-Tour Ultra Walking 17:46:32 h21
01.02 100km JPN5th Nihondaira and Suruganokuni Ultra Run 19:52:05 h28
11.01 102km JPN2nd Nara Mahoroba Ultra Walking 20:39:23 h63
2024
21.12 50km JPN1st One-day walking - Kanto Chiho 7:53:15 h16
23.11 103km JPN3rd Kyoto Ultra Walking 110km 21:59:57 h73
26.10 100km JPN6th Tsurugashima 100km 17:10:41 h23
19.10 100mi JPN10th Lake Biwa Charity 100mi Walking Tournament 19:18:01 h38
14.09 100km JPN10th Nishi Seto Expressway Ultra Run 20:13:04 h31
03.08 105km JPN1st Shinshu Nakasendo 12 Stations Ultra Race 19:06:07 h10
13.07 105km JPN4th Nihondaira and Suruganokuni Ultra Run 21:35:49 h20
29.06 100km JPN6th Hakone Kodo Ultra Walking 20:29:05 h24
25.05 100km JPN6th Tsukuba Rinrin Road 100km 17:21:00 h50
27.04 102km JPN3rd Miura-Halbinsel-Tour Ultra Walking 18:01:03 h12
06.04 103km JPN7th Ultra Walking around Lake Biwa 18:41:16 h32
23.03 115km JPN7th Lake Kasumigaura Ultra Run 24:30:37 h56
17.03 54.2km JPN12th Arakawa Riverside Journey Stage Race - Stage 2 8:31:52 h102
23.02 104km JPN1st Osaka Ultra Walking 23:54:51 h103
13.01 100km JPN1st Nara Mahoroba Ultra Walking 20:36:12 h49
2023
18.11 100km JPN1st Owari Mikawa Ultra Walking 20:28:30 h32
11.11 78km JPN10th Michikusa-Ultra, Minamiizu 78 km 13:21:16 h261
14.10 100km JPN6th Nakasendo to Kisoji Ultra Run 23:37:42 h45
19.03 54.2km JPN11th Arakawa Riverside Journey Stage Race - Stage 2 7:57:31 h70
2022
05.06 78km JPN29. Ultramarathon Okumusashi 10:41:17 h654
22.05 71km JPN28th Yatsugatake Nobeyama 71 km 9:51:48 h198
17.04 62km JPN32th Fuji 5 Lakes 62 km Challenge 9:05:35 h622
12.03 115km JPN12th Oedo Night run 115k 18:35:52 h70
2021
14.11 63km JPN0. Minuma Challenge 60 8:49:22 h78
03.10 84km JPN8th Naeba-Sanroku Geopark Tsunan Ultramarathon 84K 13:19:12 h44
04.07 8h JPN27th 8-Hour Endurance Race Tokorozawa 53.900 km302
08.05 57km JPN1st Kimitsu Ultra Marathon 9:00:49 h268
04.04 56km JPN9th Arakawa Riverside Journey - 56 km 7:32:00 h25
2020
04.10 64km JPN7th Naeba-Sanroku Geopark Tsunan Ultramarathon 64K 9:38:49 h100
22.02 115km JPN10th Oedo Night run 115k 18:42:20 h123
2019
07.10 71km JPN1st Fuji 3 Lakes 71 km Autumn Challenge 9:23:54 h232
29.06 8h JPN25th 8-Hour Endurance Race Tokorozawa 49.000 km291
02.06 78km JPN26. Ultramarathon Okumusashi 11:17:04 h1339
19.05 71km JPN25th Yatsugatake Nobeyama 71 km 10:02:56 h161
21.04 100km JPN29th Fuji 5 Lakes 100 km Challenge 13:44:25 h1307
24.03 100km JPN1st Ibaraki 100k Ultra Marathon 13:19:58 h418
23.02 113km JPN9th Oedo Night run 113k 18:39:48 h118
2018
17.06 100km JPN2nd Nikko 100km Ultramarathon 13:39:35 h676
03.06 78km JPN25. Ultramarathon Okumusashi 11:15:39 h1164
2017
24.09 100km JPN20th Jonaizaka 100 km Ultra Marathon 16:21:00 h114
01.07 8h JPN23rd 8-Hour Endurance Race Tokorozawa 45.444 km336
10.06 12h JPN16. Green Charity Marathon Tokyo - Night Run 12H 90.216 km7
04.06 78km JPN24. Ultramarathon Okumusashi 10:42:33 h1114
23.04 100km JPN27th Fuji 5 Lakes 100 km Challenge 13:26:20 h1017
2016
02.07 8h JPN22nd 8-Hour Endurance Race Tokorozawa 45.444 km284
05.06 78km JPN23. Ultramarathon Okumusashi 10:10:31 h932
2014
06.07 8h JPN20th 8-Hour Endurance Race Tokorozawa 55.182 km236
01.06 60km JPN2nd Tokyo Shibamata 60 km 8:43:28 h532
2012
08.07 8h JPN18th 8-Hour Endurance Race Tokorozawa 58.428 km181