Kuo-Chang (徐國彰) Shyu

Born : 1962 Cat. M60 Ultrarunner since 2016

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 ?

Japan

Taiwan

66,0%

Rank quotient ?This runner's calculation uses 74 eligible race(s): Σ(rank − 1) = 15 146; Σ finishers = 22 964. 15 146 / 22 964 × 100 = 65.96%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed74

Km — ultra races7 111 km

> 100 km5

> 24h2

Longest race142,5 km

8th Taipei 24hr Ultra Marathon — 16/2/2019

Km per year (ultra races)

610

2022

1 070

2023

900

2024

751

2025

502

2026

Race types (share of distance)

Road100,0%

Records

100 km11h44'08 12 h86,16 km 24 h142,55 km

HISTORY

74 race(s) · 5 split(s) nested

Date		Race	Perf.	Rk
2026
19.04	100km	17th 100 km Ultra Maranic Osaka	13:37:37 h	189
12.04	14h	10th National Taipei University 14H Ultra Marathon	56.753 km	68
21.03	45km	1st Yuanshan Ultra Run	6:34:26 h	149
14.03	100km	15th Southern Cross-Island Highway 100 km Ultra Marathon	14:54:31 h	243
01.03	100km	9th Fencihu 100 km Ultra Run	14:50:16 h	178
07.02	100km	15th Taipei 100km Ultra Marathon	13:42:23 h	33
2025
21.12	100km	8th Okinawa 100km Ultramarathon	13:53:41 h	582
21.11	100km	14th Yilan Dongshan River 100km Ultra-Marathon Night Run	14:47:21 h	66
28.09	14h	1st Luzhu Ultra Marathon - 14h	50.640 km	134
20.09	100km	2nd Yizai Jincheng 100km	14:28:37 h	39
20.04	100km	35th Fuji 4 Lakes 100 km Challenge	13:26:04 h	1101
08.03	100km	14th Southern Cross-Island Highway 100 km Ultra Marathon	13:31:32 h	147
22.02	100km	14th Taipei 100km Ultra Marathon	12:53:39 h	19
12.01	100km	11th Zhenxibao (Cinsbu) 100 km Ultramarathon	14:24:57 h	254
2024
22.12	100km	7th Shancheng 100 km Ultramarathon	12:54:20 h	136
15.12	100km	7th Okinawa 100km Ultramarathon	13:13:36 h	361
23.11	100km	13h Yilan Dongshan River 100km Ultra-Marathon	13:38:27 h	62
21.09	100km	1st Yizai Jincheng 100km	14:09:48 h	79
09.06	100km	12th Hida Takayama 100 km Ultramarathon	13:24:14 h	1087
09.03	100km	13th Southern Cross-Island Highway 100 km Ultra Marathon	13:22:04 h	82
03.03	100km	7th Fencihu 100 km Ultra Run	13:39:56 h	101
24.02	100km	13th Taipei 100km Ultra Marathon	12:22:16 h	27
21.01	100km	10th Zhenxibao (Cinsbu) 100 km Ultramarathon	14:28:22 h	350
2023
24.12	100km	6th Shancheng 100 km Ultramarathon	12:22:59 h	100
17.12	100km	6th Okinawa 100km Ultramarathon	12:51:28 h	345
21.10	100km	12h Yilan Dongshan River 100km Ultra-Marathon	13:50:10 h	54
17.09	100km	1st Huashan 100 KM	15:43:22 h	241
13.05	12h	8th National Taipei University 12H Ultra Marathon	68.610 km	125
23.04	100km	14th 100 km Ultra Maranic Osaka	12:41:55 h	159
16.04	100km	33th Fuji 4 Lakes 100 km Challenge	13:32:06 h	882
11.03	100km	12th Southern Cross-Island Highway 100 km Ultra Marathon	13:18:58 h	119
04.03	101.3km	1st Chu 22 100km	12:38:32 h	32
11.02	100km	12th Taipei 100km Ultra Marathon	13:45:11 h	39
08.01	100km	9th Zhenxibao (Cinsbu) 100 km Ultramarathon	13:48:30 h	264
2022
25.12	100km	5th Shancheng 100 km Ultramarathon	14:12:28 h	297
19.11	100km	11th Yilan Dongshan River 100km Ultra-Marathon	13:15:30 h	26
18.09	100km	4th Shudder Sheipa Ultramarathon - 100km	14:58:44 h	124
16.04	110km	6th Race Across Taiwan Nonstop 110km	20:51:24 h	12
12.03	100km	11th Southern Cross-Island Highway 100 km Ultra Marathon	12:44:41 h	102
12.02	100km	11th Taipei 100km Ultra Marathon	11:44:08 h	6
2021
26.11	100km	10th Yilan Dongshan River 100km Ultra-Marathon Night Run	14:55:29 h	48
09.10	45.6km	1st Taiwan Town and Country - Dongshi	6:17:51 h	60
13.03	100km	10th Southern Cross-Island Highway 100 km Ultra Marathon	13:21:35 h	278
28.02	100km	4th Fencihu 100 km Ultra Run	14:53:31 h	258
30.01	100km	10th Taipei 100km Ultra Marathon	13:28:52 h	27
2020
13.12	100km	4th Shancheng 100 km Ultramarathon	13:42:42 h	161
20.11	100km	9th Yilan Dongshan River 100km Ultra-Marathon Night Run	13:51:39 h	34
09.02	100km	3rd Fencihu 100 km Ultra Run	14:24:20 h	148
19.01	100km	8th Zhenxibao (Cinsbu) 100 km Ultramarathon	14:23:39 h	442
05.01	100km	2nd National University of Kaohsiung 100km	13:54:00 h	78
2019
08.12	100km	3rd Shancheng 100 km Ultramarathon	13:24:48 h	238
16.11	24h	7th Kaohsiung 24h UltraMarathon	131.250 km	21
07.10	100km	1st Fuji 4 Lakes 100 km Autumn Challenge	13:23:55 h	382
09.06	100km	3rd Koyasan and Ryujin-Onsen 100 km Ultra Marathon	13:32:44 h	239
19.05	100km	7th Tokyo Shibamata 100 km	12:53:01 h	879
21.04	100km	29th Fuji 5 Lakes 100 km Challenge	12:42:56 h	743
13.04	110km	5th Race Across Taiwan Nonstop 110km	19:26:46 h	28
17.03	100km	2nd Fencihu 100 km Ultra Run	13:21:30 h	46
09.03	100km	9th Southern Cross-Island Highway 100 km Ultra Marathon	13:17:08 h	119
16.02	24h	8th Taipei 24hr Ultra Marathon	142.545 km	59
16.02	6h	8th Taipei 24hr Ultra Marathon - 6h Split	48.399 km	77
16.02	50km	8th Taipei 24hr Ultra Marathon - 50km Split	6:13:16 h	77
16.02	50mi	8th Taipei 24hr Ultra Marathon - 50mi Split	11:46:03 h	77
16.02	12h	8th Taipei 24hr Ultra Marathon - 12h Split	82.212 km	79
16.02	100km	8th Taipei 24hr Ultra Marathon - 100km Split	15:30:13 h	68
20.01	100km	7th Zhenxibao (Cinsbu) 100 km Ultramarathon	13:42:38 h	397
2018
16.12	100km	3rd Okinawa 100km Ultramarathon	13:24:12 h	245
09.12	100km	2nd Shancheng 100 km Ultramarathon	13:54:41 h	169
24.11	100km	7th Yilan Dongshan River 100km Ultra-Marathon Night Run	16:14:53 h	94
29.07	46.1km	3rd Tianxishui Ultra Run	7:04:59 h	322
29.04	100km	1st Fencihu 100 km Ultra Run	13:55:34 h	74
18.03	12h	7th National Taipei University 12H Ultra Marathon	86.159 km	74
21.01	100km	6th Zhenxibao (Cinsbu) 100 km Ultramarathon	13:34:38 h	302
2017
25.11	100km	6th Yilan Dongshan River 100km Ultra-Marathon	12:54:32 h	72
11.03	100km	7th Southern Cross-Island Highway 100 km Ultra Marathon	12:45:51 h	107
04.03	46.6km	2nd Grapefruit scent Ultramarathon	5:38:07 h	88
08.01	100km	5th Zhenxibao (Cinsbu) 100 km Ultramarathon	13:23:15 h	258
2016
20.11	100km	2nd Chuoshui River 100 km Ultramarathon	13:42:44 h	69
23.10	70km	1st Shudder Sheipa Ultramarathon - 70km	10:15:16 h	247

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	16/2/2019	8th Taipei 24hr Ultra Marathon	142,55	×2
✓ 2	16/11/2019	7th Kaohsiung 24h UltraMarathon	131,25	×1
✓ 3	16/4/2022	6th Race Across Taiwan Nonstop 110km	110,00	×1
✓ 4	13/4/2019	5th Race Across Taiwan Nonstop 110km	110,00	×1
✓ 5	4/3/2023	1st Chu 22 100km	101,30	×1
✓ 6	19/4/2026	17th 100 km Ultra Maranic Osaka	100,00	×1
✓ 7	14/3/2026	15th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 8	1/3/2026	9th Fencihu 100 km Ultra Run	100,00	×1
✓ 9	7/2/2026	15th Taipei 100km Ultra Marathon	100,00	×1
✓ 10	21/12/2025	8th Okinawa 100km Ultramarathon	100,00	×1
✓ 11	21/11/2025	14th Yilan Dongshan River 100km Ultra-Marathon Night Run	100,00	×1
✓ 12	20/9/2025	2nd Yizai Jincheng 100km	100,00	×1
✓ 13	20/4/2025	35th Fuji 4 Lakes 100 km Challenge	100,00	×1
✓ 14	8/3/2025	14th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 15	22/2/2025	14th Taipei 100km Ultra Marathon	100,00	×1
✓ 16	12/1/2025	11th Zhenxibao (Cinsbu) 100 km Ultramarathon	100,00	×1
✓ 17	22/12/2024	7th Shancheng 100 km Ultramarathon	100,00	×1
✓ 18	15/12/2024	7th Okinawa 100km Ultramarathon	100,00	×1
✓ 19	23/11/2024	13h Yilan Dongshan River 100km Ultra-Marathon	100,00	×1
✓ 20	21/9/2024	1st Yizai Jincheng 100km	100,00	×1
✓ 21	9/6/2024	12th Hida Takayama 100 km Ultramarathon	100,00	×1
✓ 22	9/3/2024	13th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 23	3/3/2024	7th Fencihu 100 km Ultra Run	100,00	×1
✓ 24	24/2/2024	13th Taipei 100km Ultra Marathon	100,00	×1
✓ 25	21/1/2024	10th Zhenxibao (Cinsbu) 100 km Ultramarathon	100,00	×1
✓ 26	24/12/2023	6th Shancheng 100 km Ultramarathon	100,00	×1
✓ 27	17/12/2023	6th Okinawa 100km Ultramarathon	100,00	×1
✓ 28	21/10/2023	12h Yilan Dongshan River 100km Ultra-Marathon	100,00	×1
✓ 29	17/9/2023	1st Huashan 100 KM	100,00	×1
✓ 30	23/4/2023	14th 100 km Ultra Maranic Osaka	100,00	×1
✓ 31	16/4/2023	33th Fuji 4 Lakes 100 km Challenge	100,00	×1
✓ 32	11/3/2023	12th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 33	11/2/2023	12th Taipei 100km Ultra Marathon	100,00	×1
✓ 34	8/1/2023	9th Zhenxibao (Cinsbu) 100 km Ultramarathon	100,00	×1
✓ 35	25/12/2022	5th Shancheng 100 km Ultramarathon	100,00	×1
✓ 36	19/11/2022	11th Yilan Dongshan River 100km Ultra-Marathon	100,00	×1
✓ 37	18/9/2022	4th Shudder Sheipa Ultramarathon - 100km	100,00	×1
✓ 38	12/3/2022	11th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 39	12/2/2022	11th Taipei 100km Ultra Marathon	100,00	×1
✓ 40	26/11/2021	10th Yilan Dongshan River 100km Ultra-Marathon Night Run	100,00	×1
✓ 41	13/3/2021	10th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 42	28/2/2021	4th Fencihu 100 km Ultra Run	100,00	×1
✓ 43	30/1/2021	10th Taipei 100km Ultra Marathon	100,00	×1
✓ 44	13/12/2020	4th Shancheng 100 km Ultramarathon	100,00	×1
✓ 45	20/11/2020	9th Yilan Dongshan River 100km Ultra-Marathon Night Run	100,00	×1
✓ 46	9/2/2020	3rd Fencihu 100 km Ultra Run	100,00	×1
✓ 47	19/1/2020	8th Zhenxibao (Cinsbu) 100 km Ultramarathon	100,00	×1
✓ 48	5/1/2020	2nd National University of Kaohsiung 100km	100,00	×1
✓ 49	8/12/2019	3rd Shancheng 100 km Ultramarathon	100,00	×1
✓ 50	7/10/2019	1st Fuji 4 Lakes 100 km Autumn Challenge	100,00	×1
✓ 51	9/6/2019	3rd Koyasan and Ryujin-Onsen 100 km Ultra Marathon	100,00	×1
✓ 52	19/5/2019	7th Tokyo Shibamata 100 km	100,00	×1
✓ 53	21/4/2019	29th Fuji 5 Lakes 100 km Challenge	100,00	×1
✓ 54	17/3/2019	2nd Fencihu 100 km Ultra Run	100,00	×1
✓ 55	9/3/2019	9th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 56	20/1/2019	7th Zhenxibao (Cinsbu) 100 km Ultramarathon	100,00	×1
✓ 57	16/12/2018	3rd Okinawa 100km Ultramarathon	100,00	×1
✓ 58	9/12/2018	2nd Shancheng 100 km Ultramarathon	100,00	×1
✓ 59	24/11/2018	7th Yilan Dongshan River 100km Ultra-Marathon Night Run	100,00	×1
✓ 60	29/4/2018	1st Fencihu 100 km Ultra Run	100,00	×1
✓ 61	21/1/2018	6th Zhenxibao (Cinsbu) 100 km Ultramarathon	100,00	×1
✓ 62	25/11/2017	6th Yilan Dongshan River 100km Ultra-Marathon	100,00	×1
✓ 63	11/3/2017	7th Southern Cross-Island Highway 100 km Ultra Marathon	100,00	×1
✓ 64	8/1/2017	5th Zhenxibao (Cinsbu) 100 km Ultramarathon	100,00	×1
✓ 65	20/11/2016	2nd Chuoshui River 100 km Ultramarathon	100,00	×1
✓ 66	18/3/2018	7th National Taipei University 12H Ultra Marathon	86,16	×1
✓ 67	23/10/2016	1st Shudder Sheipa Ultramarathon - 70km	70,00	×1
✓ 68	13/5/2023	8th National Taipei University 12H Ultra Marathon	68,61	×1
69	12/4/2026	10th National Taipei University 14H Ultra Marathon	56,75	—
70	28/9/2025	1st Luzhu Ultra Marathon - 14h	50,64	—
71	4/3/2017	2nd Grapefruit scent Ultramarathon	46,60	—
72	29/7/2018	3rd Tianxishui Ultra Run	46,10	—
73	9/10/2021	1st Taiwan Town and Country - Dongshi	45,60	—
74	21/3/2026	1st Yuanshan Ultra Run	45,00	—