Ruy (上田瑠偉) Ueda
Born : 1993 Cat. M23 Ultrarunner since 2013 JPN
27
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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
11
Countries visited ?AUSAustraliaAUTAustriaCHNChinaESPSpainFRAFranceHKGHong KongITAItalyJPNJapanKORSouth KoreaSUISwitzerlandUSAUnited States
1,2%
Rank quotient ?This runner's calculation uses 27 eligible race(s): Σ(rank − 1) = 281; Σ finishers = 23 501. 281 / 23 501 × 100 = 1.20%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed27
Km — ultra races1 958 km
> 100 km4
Longest race123,9 km

Km per year (ultra races)

2022
145
2 races
2023
164
3 races
2024
204
3 races
2025
73
1 race
2026

Race types (share of distance)

Road5,1%
Trail94,9%

Wins & podiums (ultra)

🏆 Win10
🏆 Win M10
🏅 Top 315
🏅 Top 3 M15
Longest winning streak2
Current streak0

Records

HISTORY

27 race(s)
DateRacePerf.Rk
2026
09.05 73km ESP16. Transvulcania Ultramaraton 9:05:19 h64
2025
01.11 105km CHN10th Ultimate Tsaigu Trail Kuocang - 105 km 11:35:24 h3 🥉
19.10 54km JPN11th Shigakogen Extreme Trail - Skyultra 5:27:27 h1 🏆
25.09 45km ESP3. World Mountain & Trail Running Championships 2025 (WMTRC) Canfranc - Short Trail 5:33:03 h47
2024
02.11 56km CHN9th Ultimate Tsaigu Trail Kuocang - 50 km 4:55:52 h1 🏆
24.08 52km ITA21° Trofeo Kima - La Grande Corsa Sul Sentiero Roma 7:19:51 h19
19.01 56km HKG14th Hong Kong 100 Ultra Trail Race - Half 5:14:06 h4
2023
08.12 100km AUS2nd Ultra-Trail Kosciuszko by UTMB - Kosci 100 9:49:28 h1 🏆
09.06 45km AUT2. World Mountain & Trail Running Championships 2023 (WMTRC) Innsbruck - Short Trail 4:34:45 h12
2021
12.12 69.1km JPN8th Izu Trail Journey 5:46:34 h1 🏆
26.08 56km SUI6ème Orsières-Champex-Chamonix 5:51:17 h23
2020
18.10 54km JPN7th Shigakogen Extreme Trail 5:48:11 h1 🏆
2019
21.07 55km ITA8° Royal Ultra Sky Marathon Gran Paradiso 6:56:49 h3 🥉
2018
09.03 77mi CHN2nd Mt. Gaoligong - Road of Chinese Expeditionary Force 14:34:53 h2 🥈
2017
08.10 71.5km JPN25th Hasetsune Cup - Japan Mountain Endurance Race 7:46:22 h1 🏆
31.08 55km SUI3ème Orsières-Champex-Chamonix 6:00:36 h26
21.04 58km KOR3rd Korea 50K 5:41:12 h1 🏆
2016
23.10 76km FRA22ème Festival des Templiers - Le Grande Course 7:45:38 h21
26.08 101km ITA11ème Courmayeur-Champex-Chamonix 12:15:20 h2 🥈
12.06 45.4km JPN9th Skyline Trail Sugadaira 4:07:34 h1 🏆
02.04 100km USA6th Gorge Waterfalls 100k 9:09:37 h1 🏆
2015
28.08 101km ITA10ème Courmayeur-Champex-Chamonix 15:14:15 h52
07.02 100km USA2nd Sean O'Brien 100 km Trail Race 9:43:41 h5
2014
12.10 71.5km JPN22nd Hasetsune Cup - Japan Mountain Endurance Race 7:01:13 h1 🏆
30.08 63km JPN1st Shigakogen Extreme Trail 9:40:25 h2 🥈
2013
13.10 71.5km JPN21st Hasetsune Cup - Japan Mountain Endurance Race 7:45:27 h6
01.06 100km JPN1st Tokyo Shibamata 100 km 8:15:16 h7