Cheng-Yi (詹正義) Chan
ID 830642
Born : 1970 Cat. M55 Ultrarunner since 2016 TPE
52
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
59
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 ?JPNJapanTPETaiwan
9,1%
Rank quotient ?This runner's calculation uses 101 eligible race(s): Σ(rank − 1) = 1 016; Σ finishers = 11 146. 1 016 / 11 146 × 100 = 9.12%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed117
Km — ultra races7 454 km
> 100 km18
> 160 km3
> 200 km3
Longest race295,0 km
1st Fuji Five Lakes Ultra Run Stage Race — 28/6/2018

Km per year (ultra races)

572
6 races
2022
869
9 races
2023
657
7 races
2024
527
7 races
2025
2026

Race types (share of distance)

Road72,7%
Trail15,4%
Stage11,3%
Ult.Walk0,6%

Wins & podiums (ultra)

🏆 Win9
🏆 Win M11
🏅 Top 331
🏅 Top 3 M32
Longest winning streak1
Current streak0

Records

50 km4h49'12100 km9h33'2350 mi8h49'316 h61,47 km12 h107,53 km

HISTORY

101 race(s) · 2 split(s) nested
DateRacePerf.Rk
2025
06.12 53km TPE8th 800 Heroes - Jinshui Camp Trail westward 53km 7:15:10 h5
02.11 52.3km TPE8th 800 Heroes - Overlord of Windy City 52km 6:14:06 h5
19.10 100km TPE8th 800 Heroes - Overlord of Shuishalian 100km 14:21:14 h8
04.05 101km TPE8th 800 Heroes - Overlord of Shimen 101km 14:04:19 h9
23.03 50km TPE8th 800 Heroes - Sanyi 50km 7:25:59 h2 🥈
16.02 71km TPE8th 800 Heroes - Chungliao Mountain 71km 9:03:50 h3 🥉
05.01 100km TPE8th 800 Heroes - Overlord of Baguashan 100km 13:36:43 h25
2024
28.12 80km TPE7th Dragon, Tiger, Phoenix Trail 80 km 24:10:13 h16
15.12 100.5km TPE7th 800 Heroes - Overlord of KinMen 100km 13:32:21 h39
07.12 106km TPE7th 800 Heroes - Jinshui Camp Trail 106km 15:35:04 h5
06.10 52.3km TPE7th 800 Heroes - Overlord of Windy City 52km 6:15:15 h3 🥉
28.04 12h TPE9th National Taipei University 12H Volunteer Ultra Marathon 107.532 km1 🏆
04.02 105km TPE7th 800 Heroes - Chungliao Mountain 105km 12:24:35 h3 🥉
28.01 106km TPE6th 800 Heroes - Jinshui Camp Trail 106km 14:41:24 h3 🥉
2023
31.12 100km TPE7th 800 Heroes - Overlord of Taizhong 100km 12:49:50 h7
19.11 101.1km TPE6th 800 Heroes - Overlord of Windy City 101km 13:00:10 h25
15.10 101.7km TPE6th 800 Heroes - Overlord of Shuishalian 101km 13:44:31 h11
21.05 101.3km TPE6th 800 Heroes - Overlord of Shimen 100km 12:13:01 h10
09.04 104km TPE6th 800 Heroes - Overlord of Hulien 100km 12:24:18 h10
11.02 60km TPE1st Trails 4 in 1 Challenge 60km 10:40:11 h6
05.02 100.7km TPE6th 800 Heroes - Overlord of Aowanda 100km 13:07:58 h2 🥈
08.01 100km TPE9th Zhenxibao (Cinsbu) 100 km Ultramarathon 11:11:14 h26
01.01 100km TPE6th 800 Heroes - Overlord of Taizhong 100km 12:00:46 h3 🥉
2022
17.12 106km TPE5th 800 Heroes - Jinshui Camp Trail 106km 13:39:32 h3 🥉
23.10 45km TPE7th TUR Charity UltraMarathon 4:44:34 h17
16.10 101km TPE5th 800 Heroes - Overlord of Shuishalian 101 km 11:59:16 h3 🥉
18.09 100km TPE4th Shudder Sheipa Ultramarathon - 100km 11:29:38 h13
10.04 100km TPE5th 800 Heroes - Overlord of Maoli 100km 13:35:37 h2 🥈
13.02 120km TPE5th Fencihu 100 km Ultra Run 14:03:24 h7
2021
25.12 67km TPE18th Run Around Taipei 67 km 8:21:27 h51
05.12 101km TPE4th 800 Heroes - Overlord of Shuishalian 101 km 13:07:09 h8
24.04 77km TPE5th CCT Jiaoxi Ridge Trail 77 km 11:33:45 h1 🏆
18.04 100km TPE4th 800 Heroes - Overlord of Maoli 100km 11:41:54 h9
13.03 100km TPE10th Southern Cross-Island Highway 100 km Ultra Marathon 9:33:23 h7
28.02 100km TPE4th Fencihu 100 km Ultra Run 10:22:32 h6
2020
26.12 67km TPE17th Run Around Taipei 67 km 6:44:37 h7
22.11 48km TPE4th Baldcypress Ultra Run 5:14:02 h3 🥉
15.11 45km TPE6th Mt.18 Tops Ultra Run 4:41:18 h1 🏆
23.08 46.6km TPE5th Forest of Forget The Sorrow UltraMarathon 5:32:38 h3 🥉
09.08 45.3km TPE5th Run to Malabon UltraMarathon 5:53:05 h4
26.07 45km TPE5th TUR Charity UltraMarathon 4:38:00 h16
06.06 45km TPE1st Nankan Creek Ultra Run 5:14:36 h7
16.05 50km TPE1st Mei Shan 36 Curves 5:05:23 h4
02.05 46km TPE5th Luoshan North Ultra Run 4:33:57 h1 🏆
19.04 49.2km TPE5th Yi Tong Go Trail Running UltraMarathon 7:31:14 h21
12.04 45km TPE5th Mountain Majestic Lake Beautiful Ultra Run 6:46:30 h5
19.01 100km TPE8th Zhenxibao (Cinsbu) 100 km Ultramarathon 11:44:52 h37
05.01 46.7km TPE4th Dragon, Tiger, Phoenix Trail 46 km 9:46:03 h6
2019
28.12 50km TPE6th Dakeng Ultra Run - 50 km 4:49:12 h6
30.11 75km TPE4th Formosa Trail 75km 14:01:07 h34
02.11 100km TPE5th Buddha's Palm 100km Ultramarathon 11:39:31 h7
04.08 46.4km TPE4th Run to Malabon UltraMarathon 6:16:15 h2 🥈
14.07 45.8km TPE4th Lovers' Gorge Ultra Run 4:59:25 h34
23.06 45km TPE2nd Pinli Ultra Run 4:45:25 h11
09.06 100km TPE2nd Shudder Sheipa Ultramarathon - 100km 11:49:22 h3 🥉
18.05 49.2km TPE4th Yi Tong Go Trail Running UltraMarathon 7:58:40 h11
11.05 50km TPE5th The Beast Trail 50km 13:24:06 h41
28.04 46km TPE4th Ultra-Trail of Mt. Guguan 46 km Run 12:40:51 h1 🏆
14.04 45km TPE4th Mountain Majestic Lake Beautiful Ultra Run 7:30:41 h8
04.04 67km TPE14th Run Around Taipei 67 km 7:24:47 h10
24.03 46.8km TPE3rd CCT Jiaoxi Ridge Trail 46 km 8:17:36 h1 🏆
09.03 60km TPE9th Southern Cross-Island Highway 60 km Ultra Marathon 5:38:41 h9
02.03 100km TPE2nd Taiwania 100 Ultra Trail 13:07:26 h69
20.01 80km TPE7th Zhenxibao (Cinsbu) 80 km Ultramarathon 8:49:31 h6
06.01 50km TPE3rd Roaming 139 Ultramarathon 7:05:21 h37
05.01 45km TPE4th TUR Charity UltraMarathon 4:50:28 h10
2018
29.12 67km TPE13th Run Around Taipei 67 km 7:30:24 h23
03.11 100km TPE4th Buddha's Palm 100km Ultramarathon 13:19:04 h17
24.09 45km TPE1st Libra Ultra Run 5:29:46 h5
09.09 46km TPE2nd CCT Ayu Trail 6:42:38 h5
02.09 45km TPE1st Dapu to Dongyan Mountain Ultra Run 4:58:42 h2 🥈
01.09 45km TPE2nd Walking in the Sand Ultra Run 5:30:22 h1 🏆
04.08 273km/6stages TPE4th Around Guanshan Ultramarathon Stage Race 34:14:30 h2 🥈
29.07 46.6km TPE3rd Forest of Forget The Sorrow UltraMarathon 5:56:31 h4
22.07 46km TPE3rd Lovers' Gorge Ultra Run 5:06:46 h15
08.07 46.4km TPE3rd Run to Malabon UltraMarathon 7:25:20 h9
28.06 295km/7stages JPN1st Fuji Five Lakes Ultra Run Stage Race 45:06:14 h1 🏆
17.06 45km TPE2nd Taian, Houli to Dajia Ultra Run 5:59:36 h3 🥉
16.06 45km TPE2nd Gary Mountain Ultra Run 5:17:40 h3 🥉
02.06 45km TPE2nd Fuguang to Chaipadong Ultra Run 5:14:46 h4
06.05 50km TPE1st Paofeng 500 Ultramarathon 6:17:00 h5
18.03 8h TPE7th National Taipei University 8H Ultra Marathon 74.435 km2 🥈
11.02 6h TPE7th Taipei 6hr Ultra Marathon Sunday Run 60.787 km6
10.02 6h TPE7th Taipei 6hr Ultra Marathon Saturday Run 61.470 km8
07.01 47km TPE2nd Roaming 139 Ultramarathon 5:45:18 h32
06.01 45km TPE3rd TUR Charity UltraMarathon 5:38:48 h23
01.01 45km TPE2nd Wujhihshan Ultra Run 5:09:20 h1 🏆
2017
30.12 45km TPE1st Luoshan North-South Ultra Run 5:08:17 h2 🥈
23.09 67km TPE10th Run Around Taipei 67 km 8:40:03 h5
05.08 273km/6stages TPE3rd Around Guanshan Ultramarathon Stage Race 33:18:06 h3 🥉
02.07 45km TPE6th Chenhsipao volunteer Ultra Marathon 45 km 4:56:08 h5
24.06 47.5km TPE1st Baldcypress Ultra Run 5:23:09 h5
18.06 45km TPE1st Fuguang to Chaipadong Ultra Run 5:19:09 h5
10.06 45.5km TPE1st 17 Coast style Ultra Run 6:16:03 h9
27.05 45km TPE2nd Dalu Forest Road East Ultra Run 6:18:31 h4
21.05 45km TPE1st Dahu to Xianshan Ultramarathon 5:49:32 h2 🥈
22.04 70km TPE9th Run Around Taipei 70 km 7:27:49 h13
04.03 46.6km TPE2nd Grapefruit scent Ultramarathon 4:56:31 h29
08.01 54km TPE5th Zhenxibao (Cinsbu) 54 km Ultramarathon 6:02:11 h64
01.01 52.9km TPE1st Roaming 139 Ultramarathon 6:01:05 h17
2016
18.06 48km TPE1st Plum Blossom Ultramarathon 6:40:09 h14