Yi-Yao (張藝耀) Chang
ID 901185
Born : 1970 Cat. M55 Ultrarunner since 2016 TPE
25
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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 ?TPETaiwan
78,1%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 1 736; Σ finishers = 2 223. 1 736 / 2 223 × 100 = 78.09%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed26
Km — ultra races1 693 km
> 100 km2
> 160 km1
Longest race165,0 km
5th Race Across Taiwan Nonstop 165km — 13/4/2019

Km per year (ultra races)

279
5 races
2022
52
1 race
2023
195
4 races
2024
100
2 races
2025
179
2 races
2026

Race types (share of distance)

Road96,9%
Trail3,1%

Records

50 km7h23'56100 km15h19'4050 mi13h24'1912 h84,20 km

HISTORY

26 race(s) · 2 split(s) nested
DateRacePerf.Rk
2026
11.04 100km TPE2nd Xuhai Ultra Marathon 15:19:40 h118
06.02 12h TPE15th Taipei 12hr Ultra Marathon Night Run 79.064 km17
2025
01.11 100km TPE11th Buddha's Palm 100km Ultramarathon 16:01:21 h181
05.09 45.2k TPE1st Hehuanshan Ultra Run 7:59:53 h419
2024
07.12 53km TPE7th 800 Heroes - Jinshui Camp Trail westward 53km 9:30:06 h93
30.11 45km TPE3rd Zhuwei Bali Ultra Run 6:51:41 h11
16.11 45km TPE1st Yuanshan Shezidao Ultra Run 7:16:47 h12
06.10 52.3km TPE7th 800 Heroes - Overlord of Windy City 52km 8:54:47 h76
2023
19.11 52.3km TPE6th 800 Heroes - Overlord of Windy City 52km 7:47:05 h41
2022
24.12 55km TPE6th Bei-yi Freeway Ultra Marathon 7:30:56 h145
16.07 50km TPE3rd Puyenting Ultramarathon 7:23:56 h17
02.07 45km TPE1st Jinshan to Beipu Ultra Run 5:48:54 h13
11.06 45km TPE1st Zhuzihu Ultra Run 6:41:00 h10
11.02 12h TPE11th Taipei 12hr Ultra Marathon Night Run 84.201 km6
2021
05.12 49km TPE4th 800 Heroes - Overlord of Shuishalian 49 km 8:07:24 h47
2020
23.08 46.6km TPE5th Forest of Forget The Sorrow UltraMarathon 8:03:23 h103
19.01 50mi TPE8th Zhenxibao (Cinsbu) 50 Mile Ultramarathon II 13:24:19 h95
2019
02.11 100km TPE5th Buddha's Palm 100km Ultramarathon 16:21:12 h153
13.04 165km TPE5th Race Across Taiwan Nonstop 165km 31:29:59 h17
2018
14.04 110km TPE4th Race Across Taiwan Nonstop 110km 20:48:42 h50
2017
16.12 55.6km TPE3rd Payen settlement Ultramarathon 7:56:40 h15
09.09 73km TPE1st Tour de Shihmen Dam Ultramarathon 9:54:51 h20
20.08 45.3km TPE4th Wangchun Feng Ultramarathon 6:21:19 h9
19.08 45km TPE2nd Hengshan crossing Ultra Run 6:19:32 h9
24.06 47.5km TPE1st Baldcypress Ultra Run 8:19:00 h52
2016
10.12 70km TPE8th Run Around Taipei 70 km 9:33:15 h33