Sayuri (岡さゆり) Oka
ID 72059
Born : 1970 Cat. W55 Ultrarunner since 2009 JPN
45
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
82
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
5
Countries visited ?GBRUnited KingdomGREGreeceITAItalyJPNJapanNEDNetherlands
20,7%
Rank quotient ?This runner's calculation uses 47 eligible race(s): Σ(rank − 1) = 3 799; Σ finishers = 18 394. 3 799 / 18 394 × 100 = 20.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed47
Km — ultra races8 554 km
> 100 km31
> 160 km24
> 200 km19
> 24h9
Longest race514,0 km
15th River Road Foot Race 514 km — 30/4/2019

Km per year (ultra races)

320
2 races
2022
513
1 race
2023
2024
2025
2026

Race types (share of distance)

Road63,8%
Trail36,2%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F4
🏅 Top 30
🏅 Top 3 F13
Longest winning streak0
Current streak0

Records

50 km6h38'23100 km8h49'15100 mi29h09'3524 h228,91 km

HISTORY

48 race(s)
DateRacePerf.Rk
2023
30.04 513km JPN18th River Road Foot Race 513 km 4d 19:13:21 h17
2022
03.05 251km JPN17th River Road Foot Race 254 km 43:14:00 h9
23.04 69km JPN1st KAI 69k 15:51:04 h256
2021
03.10 64km JPN8th Naeba-Sanroku Geopark Tsunan Ultramarathon 64K 6:48:56 h19
30.04 503km JPN16th River Road Foot Race 503 km 4d 07:56:07 h13
2020
04.10 64km JPN7th Naeba-Sanroku Geopark Tsunan Ultramarathon 64K 6:44:38 h13
2019
27.09 246km GRE37. Spartathlon 34:43:22 h124
13.07 100km JPN12th OSJ Ontake 100km Ultra Trail 12:19:46 h61
09.06 50km JPN12th Skyline Trail Sugadaira 6:38:23 h25
30.04 514km JPN15th River Road Foot Race 514 km 4d 01:29:01 h9
20.04 250km JPN26. Sakura Michi Kokusai Nature Run 31:30:00 h32
2018
10.11 24h JPN13th Jingu Gaien 24 Hour Challenge 194.618 km33
15.09 100mi JPN10th Shinetsu Five Mountains Trail 100 mile 29:09:35 h120
10.06 50km JPN11th Skyline Trail Sugadaira 7:10:28 h34
30.04 514km JPN14th River Road Foot Race 514 km 4d 03:38:00 h6
21.04 250km JPN25. Sakura Michi Kokusai Nature Run 32:01:00 h20
2017
16.09 102km JPN9th Shinetsu Five Mountains Trail 100 mile 17:10:14 h127
01.07 24h GBRIAU 24h WC Belfast 198.829 km140
10.06 45km JPN10th Skyline Trail Sugadaira 6:03:07 h52
03.05 254km JPN13th River Road Foot Race 254 km 38:45:07 h6
22.04 250km JPN24. Sakura Michi Kokusai Nature Run 31:51:46 h28
2016
17.12 24h JPN11th Jingu Gaien 24 Hour Challenge 222.760 km18
09.10 100km JPN11th Echigo Kubikino 100km Ultramarathon 8:49:15 h27
12.06 45.4km JPN9th Skyline Trail Sugadaira 6:32:50 h75
03.05 255km JPN12th River Road Foot Race 255 km 41:57:53 h5
2015
19.12 24h JPN10th Jingu Gaien 24 Hour Challenge 200.884 km26
25.09 170.3km JPN4th Ultra-Trail Mt. Fuji 39:18:24 h259
11.04 24h ITAIAU 24h WC (7^ 24 ore di Torino) 156.219 km218
2014
14.09 110km JPN6th Shinetsu Five Mountains Trail 110km 17:59:06 h150
18.04 250km JPN21. Sakura Michi Kokusai Nature Run 31:49:08 h30
2013
09.11 24h JPN8th Jingu Gaien 24 Hour Challenge 194.925 km29
15.09 110km JPN5th Shinetsu Five Mountains Trail 110km 15:15:14 h56
11.05 12h NED9e 24uur van Steenbergen - 12h Split 120.335 km76
11.05 24h NED9e 24uur van Steenbergen - open race 228.907 km42
11.05 24h NEDIAU 24h WC Steenbergen (9e 24uur van Steenbergen) 228.907 km41
2012
21.10 100km JPN18th River Shimanto 100km 9:29:17 h63
07.10 24h JPN7th Jingu Gaien 24 Hour Challenge 222.982 km10
16.09 110km JPN4th Shinetsu Five Mountains Trail 110km 15:17:04 h385
05.08 77km JPN19. Ultramarathon Okumusashi 8:23:51 h194
19.05 82km JPN1st Shizuoka to Yamanashi 14:32:08 h80
21.04 250km JPN19. Sakura Michi Kokusai Nature Run 29:58:00 h16
2011
24.09 110km JPN3rd Shinetsu Five Mountains Trail 110km 15:47:10 h59
07.08 77km JPN18. Ultramarathon Okumusashi 7:45:24 h130
16.04 250km JPN18. Sakura Michi Kokusai Nature Run 32:32:00 h27
2010
19.09 110km JPN2nd Shinetsu Five Mountains Trail 110km 15:55:58 h52
01.08 77km JPN17. Ultramarathon Okumusashi 8:20:18 h168
16.05 100km JPN16th Yatsugatake Nobeyama 100 km 10:17:33 h85
2009
11.10 71.5km JPN17th Hasetsune Cup - Japan Mountain Endurance Race 13:54:48 h457