Ka-Yiu (袁家耀) Yuen
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Born : 1976
Cat. M50 Ultrarunner since 2011
12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
3
Countries visited ?Hong Kong
Japan
Taiwan
Hong KongJapanTaiwan21,8%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 1 929; Σ finishers = 8 846. 1 929 / 8 846 × 100 = 21.81%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races963 km
> 100 km1
Longest race118,0 km
26th Fuji 5 Lakes 118 km Challenge — 24/4/2016
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road93,4%
Trail6,6%
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 09.06 | 50km | 18th Iwate Ginga 50km Marathon Challenge |
5:14:27 h | 51 |
| 2019 | ||||
| 30.06 | 100km | 34. Lake Saroma 100 km Ultramarathon |
10:46:56 h | 670 |
| 24.03 | 6h | 5th Rotary HK Ultra Marathon 6 hours |
65.019 km | 5 |
| 2018 | ||||
| 13.01 | 66km | 6th Yangmingshan 66km Ultra Marathon |
7:27:35 h | 10 |
| 2017 | ||||
| 15.10 | 100km | 23rd River Shimanto 100km |
11:25:32 h | 387 |
| 11.06 | 100km | 6th Hida Takayama 100 km Ultramarathon |
11:16:16 h | 368 |
| 2016 | ||||
| 24.04 | 118km | 26th Fuji 5 Lakes 118 km Challenge |
12:40:18 h | 137 |
| 06.03 | 50km | 2nd Rotary HK Ultra Marathon 50 km |
4:14:17 h | 10 |
| 2015 | ||||
| 06.06 | 100km | 3rd Tokyo Shibamata 100 km |
10:07:22 h | 158 |
| 01.03 | 50km | 1st Rotary HK Ultra Marathon 50 km |
4:13:07 h | 23 |
| 2014 | ||||
| 01.06 | 100km | 2nd Tokyo Shibamata 100 km |
11:04:16 h | 57 |
| 2011 | ||||
| 03.04 | 64km | 6th Round the Island Time Trial |
8:00:00 h | 65 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/4/2016 | 26th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 2 | 30/6/2019 | 34. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 15/10/2017 | 23rd River Shimanto 100km | 100,00 | ×3 |
| ✓ 4 | 11/6/2017 | 6th Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 6/6/2015 | 3rd Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 6 | 1/6/2014 | 2nd Tokyo Shibamata 100 km | 100,00 | ×3 |
| ✓ 7 | 13/1/2018 | 6th Yangmingshan 66km Ultra Marathon | 66,00 | ×2 |
| ✓ 8 | 24/3/2019 | 5th Rotary HK Ultra Marathon 6 hours | 65,02 | ×2 |
| ✓ 9 | 3/4/2011 | 6th Round the Island Time Trial | 64,00 | ×2 |
| ✓ 10 | 9/6/2024 | 18th Iwate Ginga 50km Marathon Challenge | 50,00 | ×1 |
| ✓ 11 | 6/3/2016 | 2nd Rotary HK Ultra Marathon 50 km | 50,00 | ×1 |
| ✓ 12 | 1/3/2015 | 1st Rotary HK Ultra Marathon 50 km | 50,00 | ×1 |