Chih-Jen (鄭智仁) Cheng
ID 351196
Born : 1976 Cat. M50 Ultrarunner since 2009 TPE
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
2
Countries visited ?ITAItalyTPETaiwan
13,3%
Rank quotient ?This runner's calculation uses 65 eligible race(s): Σ(rank − 1) = 1 070; Σ finishers = 8 046. 1 070 / 8 046 × 100 = 13.30%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed65
Km — ultra races5 727 km
> 100 km23
> 160 km4
> 200 km2
Longest race330,0 km
9° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta — 9/9/2018

Km per year (ultra races)

200
2 races
2022
2023
2024
267
2 races
2025
261
2 races
2026

Race types (share of distance)

Road68,3%
Trail31,7%

Wins & podiums (ultra)

🏆 Win17
🏆 Win M17
🏅 Top 331
🏅 Top 3 M31
Longest winning streak3
Current streak0

Records

50 km4h43'58100 km9h49'34100 mi23h51'0712 h73,50 km

HISTORY

65 race(s)
DateRacePerf.Rk
2026
12.09 100km TPE3rd Yizai Jincheng 100km 9:49:34 h4
17.04 100mi TPE3rd Gamania Coast to Peak Ultramarathon 23:53:52 h10
2025
07.03 100mi TPE2nd Gamania Coast to Peak Ultramarathon 23:51:07 h7
16.02 106km TPE8th 800 Heroes - Chungliao Mountain 106km 13:43:16 h8
2022
17.09 100km TPE5th Taiwania 100 Ultra Trail 11:14:24 h5
16.07 100km TPE5th 800 Heroes - Overlord of Caoling 100km 12:59:34 h1 🏆
2021
09.01 95km TPE5th Dragon, Tiger, Phoenix Trail 95 km 23:53:29 h5
2020
19.09 45km TPE3rd 800 Heroes - Chungliao Mountain 45km 4:05:12 h1 🏆
26.07 45km TPE5th TUR Charity UltraMarathon 3:52:00 h3 🥉
05.07 101km TPE3rd 800 Heroes - Overlord of Shuishalian 101 km 11:29:13 h1 🏆
13.06 100km TPE3rd 800 Heroes - Overlord of LaoNong 100km 10:53:44 h2 🥈
09.05 110km TPE3rd 800 Heroes - Overlord of ZengNan 12:02:51 h1 🏆
19.04 49.2km TPE5th Yi Tong Go Trail Running UltraMarathon 6:10:56 h2 🥈
25.01 51km TPE13th Chinese New Year Marathon - Rat 4:10:21 h1 🏆
04.01 90.2km TPE4th Dragon, Tiger, Phoenix Trail 90 km 22:30:37 h3 🥉
2019
17.08 104km TPE2nd 800 Heroes - Leisurely Running in Yuli 12:39:09 h2 🥈
05.07 58.8km TPE2nd Taipei Skyline Trail Running - 50 km 12:29:34 h2 🥈
15.06 101km TPE2nd 800 Heroes - Chungliao Mountain 101km 12:03:57 h1 🏆
11.05 103km TPE2nd 800 Heroes - Leisurely Running in Alishan 103km 12:19:15 h1 🏆
04.05 63km TPE2nd Namasia Ultra Run 6:30:27 h1 🏆
05.02 54.4km TPE12th Tainan Branch Friendship Cup Chinese New Year Marathon 4:56:54 h5
20.01 106km TPE1st 800 Heroes - Jinshui Camp Trail 106km 13:32:20 h1 🏆
2018
15.12 105km TPE1st 800 Heroes - Territory Southward 10:35:20 h1 🏆
08.12 82.8km TPE3rd Dragon, Tiger, Phoenix Trail 80 km 21:21:10 h2 🥈
10.11 84km TPE2nd Trail Running of Meishan - 84 km 17:58:44 h1 🏆
09.09 330km ITA9° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta 5d 00:29:02 h136
21.07 101km TPE1st 800 Heroes - Leisurely Running in Alishan 12:06:25 h2 🥈
26.05 103km TPE3rd Ultra-Trail of Mt. Guguan 103 km Run 37:27:04 h7
12.05 45km TPE1st 800 Heroes - Chungliao Mountain 45km 4:02:39 h2 🥈
13.04 246km TPE4th Race Across Taiwan Nonstop 246km 43:08:21 h26
10.03 54.1km TPE3rd Majia 5 Peaks Trail Running 10:06:32 h1 🏆
16.02 55km TPE11th Tainan Branch Friendship Cup Chinese New Year Marathon 4:39:54 h7
03.02 54.1km TPE3rd Jinshui Camp Trail 55km 6:10:09 h2 🥈
27.01 55.5km TPE2nd Dragon, Tiger, Phoenix Trail 55 km 13:21:35 h5
2017
16.12 100km TPE2nd Overlord of WhiNe UltraMarathon 10:37:30 h2 🥈
04.11 119km TPE1st Overlord of ZengWen Reservoir UltraMarathon 13:39:38 h1 🏆
08.10 102km TPE1st Tour de KinMen Ultra Marathon 11:09:50 h5
16.07 47km TPE2nd Forest of Forget The Sorrow UltraMarathon 6:13:09 h4
22.04 49.4km TPEFengshan Ultramarathon 5:41:44 h1 🏆
11.03 120km TPE7th Southern Cross-Island Highway 120 km Ultra Marathon 13:12:36 h25
26.02 113km TPE2nd Surround PengHu UltraMarathon - 113 km 12:52:41 h5
28.01 51.8km TPE10th Tainan Branch Friendship Cup Chinese New Year Marathon 4:35:23 h11
01.01 54.1km TPE2nd Jinshui Camp Trail 55km 5:58:21 h1 🏆
2016
17.12 97km TPE1st The Seven Heroes of Guguan 33:18:01 h2 🥈
19.11 100km TPE1st Formosa Trail 100km 19:51:53 h6
16.10 50.9km TPE2nd Trail Running of Mt. Weiliao 11:57:02 h7
03.07 46.6km TPE1st 175 Coffee Road Ultramarathon 5:54:15 h3 🥉
05.06 50km TPE1st Ultra-Trail Yilan 6:46:55 h5
21.05 91km TPE1st Ultra-Trail of Mt. Guguan 34:18:16 h6
02.04 46.1km TPE1st Trail Running of Mt. Weiliao 8:38:45 h8
26.03 108km TPE1st Territory Southward Ultramarathon 12:29:51 h3 🥉
12.03 120km TPE6th Southern Cross-Island Highway 120 km Ultra Marathon 14:21:22 h51
31.01 101km TPE1st Kaohsiung The limit 101 Ultramarathon 13:31:24 h8
17.01 49.2km TPE1st Wutai Mountain Ultra Run 4:43:39 h6
10.01 12h TPE1st National University of Kaohsiung 12h 73.500 km49
2015
06.12 51.6km TPE1st Tanayiku Ultra Run 5:34:11 h1 🏆
05.09 46.3km TPE1st Dawushan Ultramarathon 5:39:40 h1 🏆
18.04 100km TPE5th The North Face 100K Challenge Taiwan 14:21:44 h46
07.03 108km TPE5th Southern Cross-Island Highway 108 km Ultra Marathon 11:52:17 h26
19.02 50km TPE8th Tainan Branch Friendship Cup Chinese New Year Marathon 4:43:58 h33
25.01 100km TPE3rd Zhenxibao (Cinsbu) 100 km Ultramarathon 11:03:43 h36
2014
08.03 108km TPE4th Southern Cross-Island Highway 108 km Ultra Marathon 12:33:56 h19
31.01 54km TPE7th Tainan Branch Friendship Cup Chinese New Year Marathon 5:42:53 h90
2013
30.11 50km TPE2nd Yilan Dongshan River 50km Ultra-Marathon 5:11:53 h180
2009
18.10 50km TPE1st Beitou 50km Ultra Marathon 6:36:43 h235