Itsuko (上宮逸子) Uemiya
ID 103249
Born : 1978 Cat. W45 Ultrarunner since 2009 JPN
44
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
5
Countries visited ?FRAFranceHKGHong KongITAItalyJPNJapanUSAUnited States
10,3%
Rank quotient ?This runner's calculation uses 44 eligible race(s): Σ(rank − 1) = 1 872; Σ finishers = 18 242. 1 872 / 18 242 × 100 = 10.26%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed44
Km — ultra races3 462 km
> 100 km9
Longest race145,0 km
10ème Sur les Traces des Ducs de Savoie (TDS) — 28/8/2019

Km per year (ultra races)

2022
2023
306
5 races
2024
80
1 race
2025
2026

Race types (share of distance)

Road2,9%
Trail97,1%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F14
🏅 Top 31
🏅 Top 3 F27
Longest winning streak0
Current streak0

Records

50 km4h42'53100 km11h40'4850 mi9h26'44

HISTORY

44 race(s)
DateRacePerf.Rk
2025
20.09 50mi USA6th That's No Moon Ultras 50M 10:03:05 h6
2024
02.11 74km JPN4th OSJ Kami 74 9:57:57 h4
06.10 68km JPN8th Forestrail Shinjo-Hiruzen 8:43:36 h6
07.09 53.4km JPN17th OSJ Adatara Trail 50K 9:02:19 h12
11.05 50km JPN10th Mt. Hiei Int. 50 km Trail Run 6:51:15 h3 🥉
11.02 60.2km USA11th Black Canyon Trail 60 km Run 6:16:05 h41
2021
07.11 50km JPN5th Koshu Alps Lily Route Challenge 7:23:53 h7
25.07 60km JPN9th Kirishima Ebino-kougen Extreme Trail 8:38:02 h18
2019
08.12 71.7km JPN6th Izu Trail Journey 8:04:47 h76
03.11 50km JPN3rd Koshu Alps Lily Route Challenge 7:53:08 h17
28.08 145km ITA10ème Sur les Traces des Ducs de Savoie 28:12:27 h121
22.06 80km JPN5th OSJ Yamanaka Onsen Trail Run 12:24:29 h21
11.05 121km JPN3rd Aso Round Trail 19:40:19 h14
16.02 100km USA6th Black Canyon Trail 100 km Run 12:11:44 h169
2018
03.11 65km JPN1st Top of Trail Runner in Japan - 65km 6:41:28 h4
29.08 119km ITA9ème Sur les Traces des Ducs de Savoie 21:32:53 h161
23.06 80km JPN4th OSJ Yamanaka Onsen Trail Run 12:16:27 h16
12.05 108.7km JPN2nd Aso Round Trail 17:48:14 h16
24.02 50mi HKG2nd The 9 Dragons - 50 Miles 13:56:37 h8
2017
18.11 50mi USA11th Endurance Challenge - California Trail 50 Mile 9:26:44 h130
29.10 75km JPN3rd OSJ Yamanaka Onsen Trail Run 13:11:39 h24
30.08 119km ITA8ème Sur les Traces des Ducs de Savoie 21:28:55 h145
23.04 70km JPN3rd Okumikawa Power Trail 10:01:55 h59
04.02 100km USA4th Sean O'Brien 100 km Trail Race 11:40:48 h37
2016
13.11 75km JPN2nd Gasando Trail running race 9:47:30 h25
30.10 70km JPN2nd OSJ Yamanaka Onsen Trail Run 12:01:35 h25
06.02 50mi USA3rd Sean O'Brien 50 Mile Trail Race 10:08:43 h11
2015
26.09 76.7km JPN4th Shizuoka to Yamanashi 10:49:13 h26
18.07 100km JPN8th OSJ Ontake 100km Ultra Trail 11:55:57 h43
02.05 51km FRA13ème Trail Nivolet Revard 51 kms 6:20:53 h55
08.02 50km JPN6th OSJ Jungle Trail 50K Amami 5:17:03 h23
2014
14.09 110km JPN6th Shinetsu Five Mountains Trail 110km 13:06:49 h20
2013
20.10 71km JPN4th OSJ Hyonosen Mountains Trail Race 9:32:43 h18
15.09 110km JPN5th Shinetsu Five Mountains Trail 110km 13:40:50 h24
13.07 65km JPN4th Nozawa Onsen 4100D Mountain Trail 8:51:39 h38
2012
03.06 50km JPN4th OSJ Okukuji Trail 50k 8:38:51 h20
2011
09.10 71.5km JPN19th Hasetsune Cup - Japan Mountain Endurance Race 11:28:23 h163
24.09 110km JPN3rd Shinetsu Five Mountains Trail 110km 14:34:06 h32
03.07 50km JPN3rd OSJ Shiga Kogen Trail 50K 7:38:00 h43
12.06 50km JPN7th Iwate Ginga 50km Marathon Challenge 4:42:53 h46
2010
03.10 50km JPN4th Madarao Forest Trails 50km 5:18:20 h15
19.09 110km JPN2nd Shinetsu Five Mountains Trail 110km 14:32:35 h29
2009
21.09 100km JPN1st Shinetsu Five Mountains Trail 100km 15:55:46 h109
14.06 50km JPN5th Iwate Ginga 50km Marathon Challenge 5:07:31 h36