Sheng-Yuan (鄭勝元) Cheng

Born : 1980 Cat. M45 Ultrarunner since 2011

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

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

Countries visited ?

Taiwan

26,1%

Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 372; Σ finishers = 1 428. 372 / 1 428 × 100 = 26.05%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed18

Km — ultra races1 497 km

> 100 km2

> 160 km1

> 200 km1

Longest race246,0 km

1st Race Across Taiwan stage race — 27/3/2014

Km per year (ultra races)

2022

2023

2024

2025

2026

Race types (share of distance)

Road27,9%

Trail6,7%

Stage65,4%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 31

🏅 Top 3 M1

Longest winning streak0

Current streak0

Records

100 km10h19'15 12 h101,53 km

HISTORY

16 race(s) · 3 stage(s) nested · 6 split(s) nested

Date		Race	Perf.	Rk
2017
11.02	12h	6th Taipei 12hr Ultra Marathon	101.529 km	15
11.02	50km	6th Taipei 12hr Ultra Marathon - 50km Split	4:57:22 h	10
11.02	6h	6th Taipei 12hr Ultra Marathon - 6h Split	59.282 km	9
11.02	50mi	6th Taipei 12hr Ultra Marathon - 50mi Split	8:58:18 h	11
11.02	100km	6th Taipei 12hr Ultra Marathon - 100km Split	11:48:24 h	16
2015
14.02	12h	4th Taipei 12hr Ultra Marathon	50.100 km	139
14.02	50km	4th Taipei 12hr Ultra Marathon - 50km Split	5:21:18 h	17
14.02	6h	4th Taipei 12hr Ultra Marathon - 6h Split	50.100 km	43
2014
28.12	66km	3rd Yangmingshan Ultra Marathon	6:03:01 h	3 🥉
27.03	246km/3stages	1st Race Across Taiwan stage race	30:50:37 h	7
27.03	81km	1st Race Across Taiwan stage race - Stage 1 Taichung Port to Puli	9:42:37 h	10
28.03	65km	1st Race Across Taiwan stage race - Stage 2 Puli to Tsuifeng	8:27:00 h	7
29.03	100km	1st Race Across Taiwan stage race - Stage 3 Tsuifeng to Fushih	12:41:00 h	22
2013
30.11	100km	2nd Yilan Dongshan River 100km Ultra-Marathon	10:19:15 h	32
07.04	67.5km	1st Tour de Taiwan Island Ultramarathon Stage 9 (Shui Diliao to Gangshan)	10:56:15 h	27
06.04	84km	1st Tour de Taiwan Island Ultramarathon Stage 8 (Manzhou to Shui Diliao)	13:51:19 h	26
05.04	93km	1st Tour de Taiwan Island Ultramarathon Stage 7 (Jinlun to Manzhou)	15:02:37 h	25
04.04	85km	1st Tour de Taiwan Island Ultramarathon Stage 6 (Chishang to Jinlun)	14:00:58 h	34
03.04	85km	1st Tour de Taiwan Island Ultramarathon Stage 5 (Fenglin to Chishang)	13:52:54 h	37
02.04	79km	1st Tour de Taiwan Island Ultramarathon Stage 4 (Heping to Fenglin)	12:22:00 h	36
01.04	84.5km	1st Tour de Taiwan Island Ultramarathon Stage 3 (Jiaoxi to Heping)	14:18:16 h	59
31.03	81.5km	1st Tour de Taiwan Island Ultramarathon Stage 2 (Keelung to Jiaosi)	10:51:15 h	28
30.03	74km	1st Tour de Taiwan Island Ultramarathon Stage 1 (Taipei to Keelung)	9:12:58 h	35
2011
28.05	100km	1st Southern Cross-Island Highway 100 km Ultra Marathon	11:49:36 h	96
15.01	100km	3rd Praying for Taiwan - 100K Ultramarathon	11:08:32 h	87

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	27/3/2014	1st Race Across Taiwan stage race	246,00	×9
✓ 2	11/2/2017	6th Taipei 12hr Ultra Marathon	101,53	×4
✓ 3	30/11/2013	2nd Yilan Dongshan River 100km Ultra-Marathon	100,00	×4
✓ 4	28/5/2011	1st Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×4
✓ 5	15/1/2011	3rd Praying for Taiwan - 100K Ultramarathon	100,00	×4
✓ 6	28/12/2014	3rd Yangmingshan Ultra Marathon	66,00	×2
✓ 7	14/2/2015	4th Taipei 12hr Ultra Marathon	50,10	×2