Seung-Woo (서승우) Suh

Born : 1963 Cat. M60 Ultrarunner since 2012

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 ?

France

Hong Kong

Italy

Japan

South Korea

Oman

Russia

Thailand

Taiwan

56,8%

Rank quotient ?This runner's calculation uses 72 eligible race(s): Σ(rank − 1) = 9 711; Σ finishers = 17 095. 9 711 / 17 095 × 100 = 56.81%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed72

Km — ultra races7 697 km

> 100 km24

> 160 km7

Longest race200,0 km

24th Jeju-do around 200 km — 24/5/2025

Km per year (ultra races)

851

2022

1 127

2023

547

2024

904

2025

458

2026

Race types (share of distance)

Road44,1%

Trail55,9%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 34

🏅 Top 3 M4

Longest winning streak0

Current streak0

Records

50 km7h19'35 100 km10h00'16 50 mi19h40'36 100 mi33h58'17 12 h101,00 km

HISTORY

72 race(s)

Date		Race	Perf.	Rk
2026
30.05	100km	13th Geoje Jimaek Trail Run - 100 km	24:31:34 h	66
24.04	167km	11th Ultra-Trail Mt. Fuji	42:22:48 h	1029
07.03	91km	1st Xtrail Kenting by UTMB - Xtrail 100K	23:43:09 h	325
24.01	100km	16th Hong Kong 100 Ultra Trail Race	21:11:16 h	1184
2025
24.10	123km	9th High Trail Nine Peaks - 9 Peaks	39:27:46 h	115
17.10	150km	12th TransJeju by UTMB - Jeju100M	34:47:40 h	226
11.10	50km	1st Dtrail Race	11:53:47 h	77
28.06	80km	18^ Lavaredo Ultra Trail by UTMB - 80K	19:50:13 h	824
24.05	200km	24th Jeju-do around 200 km	31:22:38 h	14
17.05	100km	3rd Seoul Hangang Ultra Marathon 100km	12:23:26 h	98
05.04	12h	KUMF 12H Cup	101.000 km	3 🥉
08.03	100km	20th Busan Beach Ultramarathon 100km	13:33:00 h	57
2024
25.10	121km	8th High Trail Nine Peaks - 9 Peaks	39:51:15 h	103
28.09	100km	5th Cheonan Samgeori Ultramarathon - 100km	12:16:30 h	18
23.06	50km	2nd Wtr Salomon Trail Running	11:54:47 h	103
18.05	100km	2nd Seoul Hangang Ultra Marathon 100km	10:31:00 h	13
04.05	106km	3rd Amazean Jungle Thailand by UTMB - 100km	30:24:43 h	74
06.04	70km	3rd Jangsu Trail - April	15:55:59 h	117
2023
09.12	96.5km	4th Doi Inthanon Thailand by UTMB - ELEPHANT 100	23:01:21 h	331
10.11	139km	10th TransLantau 140 by UTMB	37:08:19 h	188
27.10	121km	7th High Trail Nine Peaks - 9 Peaks	37:24:06 h	78
14.10	100km	4th Cheonan Samgeori Ultramarathon - 100km	12:57:02 h	20
07.10	100km	10th TransJeju by UTMB 100	18:12:35 h	284
01.09	170km	20ème Ultra Trail Tour du Mont Blanc	46:09:23 h	1683
19.08	100km	19th Busan Summer Beach 100 km Ultra Marathon	11:54:07 h	7
17.06	100km	12th Ulsan Taewha River 100 km Ultramarathon	10:00:16 h	2 🥈
10.06	100km	20th Gwangju 100km Ultra Marathon	10:49:20 h	3 🥉
04.03	100km	18th Busan Beach Ultramarathon 100km	12:41:00 h	28
2022
10.12	104km	3rd Thailand by UTMB - 104km	29:34:37 h	450
27.10	124km	6th High Trail Nine Peaks - 9 Peaks	38:29:53 h	48
15.10	112km	9th Transjeju Int. Trail Run 100	21:29:37 h	97
24.09	100km	3rd Cheonan Samgeori Ultramarathon - 100km	12:36:43 h	20
25.06	111km	9th Geoje Jimaek Trail Run - 111 km	23:39:19 h	35
09.04	100km	18th Cheongnamdae 100km Ultra Marathon	12:09:00 h	18
02.04	100km	9th SeJong Ultramarathon	11:02:00 h	31
12.03	100km	17th Busan Beach Ultramarathon 100km	13:02:00 h	18
2021
13.11	200km	20th Jeju-do around 200 km	29:29:44 h	14
06.11	50km	8th Transjeju Int. Trail Run 50	9:28:28 h	199
30.10	124km	5th High Trail Nine Peaks - 9 Peaks	33:14:25 h	46
09.10	100km	17th Busan Summer Beach 100 km Ultra Marathon	12:50:21 h	11
26.06	100mi	1st Seoul 100 Mile Endurance Run	33:58:17 h	12
04.06	104km	16th Water Love Nagdong River Ultramarathon 104 km	11:58:00 h	9
03.04	100km	8th SeJong Ultramarathon	12:40:00 h	41
2020
30.10	105km	4th High Trail Nine Peaks - 8 Peaks	35:12:28 h	53
2019
28.11	130km	2nd Oman by UTMB 130 km	40:13:54 h	143
05.10	100km	2nd Cheonan Samgeori Ultramarathon - 100km	11:41:00 h	12
10.08	100km	4th Yang Yang Int. Trailrun 100km	16:52:00 h	67
22.06	100km	11th Bukhangang 100 km Ultra Marathon Race	11:16:25 h	2 🥈
18.05	100km	4th TNF 100 Korea	21:46:06 h	48
21.04	80km	5th Korea 80K	19:40:36 h	73
14.04	100km	17th Cheongnamdae 100km Ultra Marathon	12:15:00 h	47
13.01	100km	15th Busan Beach Ultramarathon 100km	14:17:00 h	69
2018
24.11	100km	9. KUMF 100km Cup	12:09:00 h	40
11.08	102km	3rd Yang Yang Int. Trailrun 100km	16:42:00 h	51
23.06	100km	10th Bukhangang 100 km Ultra Marathon Race	13:22:31 h	36
19.05	100km	3rd TNF 100 Korea	23:49:37 h	94
05.05	12h	KUMF 12H Cup	85.960 km	18
10.03	200km	17th Jeju-do around 200 km	30:42:58 h	17
2017
16.12	100km	5th The North Face 100 Hong Kong	24:52:49 h	240
14.10	100km	5th Transjeju Int. Trail Run 100	21:04:47 h	63
01.07	105km	Altai Ultra-Trail 105 km	29:12:26 h	28
20.05	100km	2nd TNF 100 Korea	20:53:41 h	30
21.04	58km	3rd Korea 50K	11:56:34 h	163
11.03	200km	16th Jeju-do around 200 km	31:49:01 h	36
2016
01.10	56km	1st Ultra Trail Mt. Jiri	13:10:38 h	53
03.09	50km	1st DMZ Ultra Trail 50 km	7:19:35 h	52
23.04	100km	15th Jeju City 100 km	11:03:25 h	12
2015
08.08	100km	2nd Geumcheongu Ultramarathon	12:18:00 h	20
2014
05.04	100km	13th Jeju City 100 km	14:16:38 h	86
2013
25.05	100km	10th Cheonjinam Ultra Marathon Festival - 100 km	14:48:19 h	68
2012
18.08	12h	10th 7 to 7 Ultramarathon	100.000 km	7
19.05	100km	9th Cheonjinam Ultra Marathon Festival - 100 km	11:40:38 h	36

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	24/5/2025	24th Jeju-do around 200 km	200,00	×2
✓ 2	13/11/2021	20th Jeju-do around 200 km	200,00	×2
✓ 3	10/3/2018	17th Jeju-do around 200 km	200,00	×2
✓ 4	11/3/2017	16th Jeju-do around 200 km	200,00	×2
✓ 5	1/9/2023	20ème Ultra Trail Tour du Mont Blanc (UTMB)	170,00	×2
✓ 6	24/4/2026	11th Ultra-Trail Mt. Fuji (UTMF)	167,00	×2
✓ 7	26/6/2021	1st Seoul 100 Mile Endurance Run	160,93	×2
✓ 8	17/10/2025	12th TransJeju by UTMB - Jeju100M	150,00	×2
✓ 9	10/11/2023	10th TransLantau 140 by UTMB	139,00	×1
✓ 10	28/11/2019	2nd Oman by UTMB 130 km	130,00	×1
✓ 11	27/10/2022	6th High Trail Nine Peaks - 9 Peaks	124,00	×1
✓ 12	30/10/2021	5th High Trail Nine Peaks - 9 Peaks	124,00	×1
✓ 13	24/10/2025	9th High Trail Nine Peaks - 9 Peaks	123,00	×1
✓ 14	25/10/2024	8th High Trail Nine Peaks - 9 Peaks	121,00	×1
✓ 15	27/10/2023	7th High Trail Nine Peaks - 9 Peaks	121,00	×1
✓ 16	15/10/2022	9th Transjeju Int. Trail Run 100	112,00	×1
✓ 17	25/6/2022	9th Geoje Jimaek Trail Run - 111 km	111,00	×1
✓ 18	4/5/2024	3rd Amazean Jungle Thailand by UTMB - 100km	106,00	×1
✓ 19	30/10/2020	4th High Trail Nine Peaks - 8 Peaks	105,00	×1
✓ 20	1/7/2017	Altai Ultra-Trail 105 km	105,00	×1
✓ 21	10/12/2022	3rd Thailand by UTMB - 104km	104,00	×1
✓ 22	4/6/2021	16th Water Love Nagdong River Ultramarathon 104 km	104,00	×1
✓ 23	11/8/2018	3rd Yang Yang Int. Trailrun 100km	102,00	×1
✓ 24	5/4/2025	KUMF 12H Cup	101,00	×1
✓ 25	30/5/2026	13th Geoje Jimaek Trail Run - 100 km	100,00	×1
✓ 26	24/1/2026	16th Hong Kong 100 Ultra Trail Race	100,00	×1
✓ 27	17/5/2025	3rd Seoul Hangang Ultra Marathon 100km	100,00	×1
✓ 28	8/3/2025	20th Busan Beach Ultramarathon 100km	100,00	×1
✓ 29	28/9/2024	5th Cheonan Samgeori Ultramarathon - 100km	100,00	×1
✓ 30	18/5/2024	2nd Seoul Hangang Ultra Marathon 100km	100,00	×1
✓ 31	14/10/2023	4th Cheonan Samgeori Ultramarathon - 100km	100,00	×1
✓ 32	7/10/2023	10th TransJeju by UTMB 100	100,00	×1
✓ 33	19/8/2023	19th Busan Summer Beach 100 km Ultra Marathon	100,00	×1
✓ 34	17/6/2023	12th Ulsan Taewha River 100 km Ultramarathon	100,00	×1
✓ 35	10/6/2023	20th Gwangju 100km Ultra Marathon	100,00	×1
✓ 36	4/3/2023	18th Busan Beach Ultramarathon 100km	100,00	×1
✓ 37	24/9/2022	3rd Cheonan Samgeori Ultramarathon - 100km	100,00	×1
✓ 38	9/4/2022	18th Cheongnamdae 100km Ultra Marathon	100,00	×1
✓ 39	2/4/2022	9th SeJong Ultramarathon	100,00	×1
✓ 40	12/3/2022	17th Busan Beach Ultramarathon 100km	100,00	×1
✓ 41	9/10/2021	17th Busan Summer Beach 100 km Ultra Marathon	100,00	×1
✓ 42	3/4/2021	8th SeJong Ultramarathon	100,00	×1
✓ 43	5/10/2019	2nd Cheonan Samgeori Ultramarathon - 100km	100,00	×1
✓ 44	10/8/2019	4th Yang Yang Int. Trailrun 100km	100,00	×1
✓ 45	22/6/2019	11th Bukhangang 100 km Ultra Marathon Race	100,00	×1
✓ 46	18/5/2019	4th TNF 100 Korea	100,00	×1
✓ 47	14/4/2019	17th Cheongnamdae 100km Ultra Marathon	100,00	×1
✓ 48	13/1/2019	15th Busan Beach Ultramarathon 100km	100,00	×1
✓ 49	24/11/2018	9. KUMF 100km Cup	100,00	×1
✓ 50	23/6/2018	10th Bukhangang 100 km Ultra Marathon Race	100,00	×1
✓ 51	19/5/2018	3rd TNF 100 Korea	100,00	×1
✓ 52	16/12/2017	5th The North Face 100 Hong Kong	100,00	×1
✓ 53	14/10/2017	5th Transjeju Int. Trail Run 100	100,00	×1
✓ 54	20/5/2017	2nd TNF 100 Korea	100,00	×1
✓ 55	23/4/2016	15th Jeju City 100 km	100,00	×1
✓ 56	8/8/2015	2nd Geumcheongu Ultramarathon	100,00	×1
✓ 57	5/4/2014	13th Jeju City 100 km	100,00	×1
✓ 58	25/5/2013	10th Cheonjinam Ultra Marathon Festival - 100 km	100,00	×1
✓ 59	18/8/2012	10th 7 to 7 Ultramarathon	100,00	×1
✓ 60	19/5/2012	9th Cheonjinam Ultra Marathon Festival - 100 km	100,00	×1
✓ 61	9/12/2023	4th Doi Inthanon Thailand by UTMB - ELEPHANT 100	96,50	×1
✓ 62	7/3/2026	1st Xtrail Kenting by UTMB - Xtrail 100K	91,00	×1
✓ 63	5/5/2018	KUMF 12H Cup	85,96	×1
✓ 64	28/6/2025	18^ Lavaredo Ultra Trail by UTMB - 80K	80,00	×1
✓ 65	21/4/2019	5th Korea 80K	80,00	×1
✓ 66	6/4/2024	3rd Jangsu Trail - April	70,00	—
67	21/4/2017	3rd Korea 50K	58,00	—
68	1/10/2016	1st Ultra Trail Mt. Jiri (UTMJ)	56,00	—
69	11/10/2025	1st Dtrail Race	50,00	—
70	23/6/2024	2nd Wtr Salomon Trail Running	50,00	—
71	6/11/2021	8th Transjeju Int. Trail Run 50	50,00	—
72	3/9/2016	1st DMZ Ultra Trail 50 km	50,00	—