Hong-Seok (최홍석) Choi

Born : 1978 Cat. M45 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 ?

Antarctica

Chile

China

South Korea

Mongolia

Namibia

23,6%

Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 886; Σ finishers = 3 750. 886 / 3 750 × 100 = 23.63%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed47

Km — ultra races2 845 km

> 100 km8

> 160 km6

> 200 km5

> 24h1

> 48h1

Longest race250,0 km

14th Atacama Crossing — 30/9/2018

Km per year (ultra races)

105

2022

200

2023

100

2024

150

2025

2026

Race types (share of distance)

Road3,5%

Trail46,3%

Stage50,2%

Records

50 km7h31'06 100 km13h32'00 50 mi17h56'17 6 d178,83 km

HISTORY

22 race(s)

Date		Race	Perf.	Rk
2025
17.10	150km	12th TransJeju by UTMB - Jeju100M	28:04:12 h	75
2024
09.06	100km	21st Gwangju 100km Ultra Marathon	13:32:00 h	54
2023
07.10	100km	10th TransJeju by UTMB 100	14:34:14 h	65
20.05	100km	5th TNF 100 Korea	17:24:01 h	24
2022
25.06	50km	9th Geoje Jimaek Trail Run - 50 km	7:31:06 h	13
01.05	55km	2nd Jirisan Ultra Trail Run	10:14:21 h	7
2021
10.07	55km	1st Jirisan Ultra Trail Run	12:16:07 h	14
2019
12.10	110km	7th Transjeju Int. Trail Run 100	19:44:06 h	36
18.05	100km	4th TNF 100 Korea	24:20:45 h	94
21.04	80km	5th Korea 80K	17:56:17 h	40
2018
23.11	6d	8° The Last Desert Antarctica	178.830 km	10
30.09	250km/6stages	14th Atacama Crossing	47:35:28 h	45
29.07	250km/6stages	15th Gobi March Mongolia	38:21:34 h	66
19.05	100km	3rd TNF 100 Korea	17:24:09 h	23
29.04	250km/6stages	Sahara Race Namibia	45:06:09 h	34
21.04	58km	4th Korea 50K	10:55:35 h	116
2017
14.10	100km	5th Transjeju Int. Trail Run 100	17:01:00 h	23
18.06	250km/6stages	14th Gobi March China	45:45:40 h	42
20.05	100km	2nd TNF 100 Korea	19:49:42 h	25
30.04	250km/6stages	Sahara Race Namibia	2d 02:21:57 h	47
21.04	58km	3rd Korea 50K	9:31:34 h	43
2016
11.06	100km	1st TNF 100 Korea	22:09:05 h	12

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	30/9/2018	14th Atacama Crossing	250,00	×5
✓ 2	29/7/2018	15th Gobi March Mongolia	250,00	×5
✓ 3	29/4/2018	Sahara Race Namibia	250,00	×5
✓ 4	18/6/2017	14th Gobi March China	250,00	×5
✓ 5	30/4/2017	Sahara Race Namibia	250,00	×5
✓ 6	23/11/2018	8° The Last Desert Antarctica	178,83	×3
✓ 7	17/10/2025	12th TransJeju by UTMB - Jeju100M	150,00	×3
✓ 8	12/10/2019	7th Transjeju Int. Trail Run 100	110,00	×2
✓ 9	9/6/2024	21st Gwangju 100km Ultra Marathon	100,00	×2
✓ 10	7/10/2023	10th TransJeju by UTMB 100	100,00	×2
✓ 11	20/5/2023	5th TNF 100 Korea	100,00	×2
✓ 12	18/5/2019	4th TNF 100 Korea	100,00	×2
✓ 13	19/5/2018	3rd TNF 100 Korea	100,00	×2
✓ 14	14/10/2017	5th Transjeju Int. Trail Run 100	100,00	×2
✓ 15	20/5/2017	2nd TNF 100 Korea	100,00	×2
✓ 16	11/6/2016	1st TNF 100 Korea	100,00	×2
✓ 17	21/4/2019	5th Korea 80K	80,00	×1
✓ 18	21/4/2018	4th Korea 50K	58,00	×1
✓ 19	21/4/2017	3rd Korea 50K	58,00	×1
✓ 20	1/5/2022	2nd Jirisan Ultra Trail Run	55,00	×1
✓ 21	10/7/2021	1st Jirisan Ultra Trail Run	55,00	×1
✓ 22	25/6/2022	9th Geoje Jimaek Trail Run - 50 km	50,00	×1