Keng-Soon (Jason) Cheong

Born : 1964 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 ?

Australia

Hong Kong

Japan

South Korea

Malaysia

Singapore

Thailand

72,1%

Rank quotient ?This runner's calculation uses 70 eligible race(s): Σ(rank − 1) = 14 184; Σ finishers = 19 668. 14 184 / 19 668 × 100 = 72.12%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed70

Km — ultra races6 745 km

> 100 km16

> 160 km11

> 200 km1

Longest race321,9 km

2nd Singapore 200 Miles Ultra (For the Insanes. By the Insanes) — 6/8/2016

Km per year (ultra races)

201

2022

411

2023

559

2024

253

2025

200

2026

Race types (share of distance)

Road54,6%

Trail45,4%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M0

🏅 Top 32

🏅 Top 3 M3

Longest winning streak0

Current streak0

Records

50 km6h55'36 100 km16h37'32 100 mi25h14'34 12 h68,80 km

HISTORY

70 race(s)

Date		Race	Perf.	Rk
2026
18.07	100km	The Guzzler Ultra 100km	25:56:47 h	177
24.01	100km	16th Hong Kong 100 Ultra Trail Race	25:34:08 h	1587
2025
19.07	100km	The Guzzler Ultra 100km	25:45:25 h	169
29.03	64.5km	10th Lantau Trail race 70k	15:40:37 h	345
08.02	88km	5th Lucky 88.88km Hall of Fortune	16:26:00 h	20
2024
09.11	100km	11th TransLantau 100 by UTMB	29:33:52 h	322
28.09	101km	12th Craze Ultra 101 km	21:56:55 h	11
20.07	100km	The Guzzler Ultra 100km	24:18:30 h	168
16.03	70km	9th Lantau Trail race 70k	16:09:14 h	206
17.02	88km	4th Lucky 88.88km Hall of Fortune	17:08:00 h	18
20.01	100km	14th Hong Kong 100 Ultra Trail Race	28:31:26 h	1031
2023
09.12	50km	4th Doi Inthanon Thailand by UTMB - HMONG 50	12:15:21 h	1055
11.11	103km	10th TransLantau 100 by UTMB	31:29:52 h	588
30.09	101km	11th Craze Ultra 101 km	19:57:07 h	18
22.07	100km	The Guzzler Ultra 100km	24:46:18 h	151
24.06	12h	8th Bedok Reservoir 12 hour Ultramarathon	56.940 km	37
2022
01.10	101km	10th Craze Ultra 101 km	20:33:00 h	34
23.07	100km	The Guzzler Ultra 100km	24:47:15 h	101
2020
15.02	12h	5th Garang Warrior Ultra 12 Hour Run	52.000 km	62
04.01	162km	5th Ultra-Trail Tai Mo Shan (UTMT) 100 Mile	41:51:02 h	88
2019
12.10	100km	2nd Ultramarathon de Sai Kung	25:47:04 h	29
20.07	16h	9th Twilight Ultra Challenge	80.000 km	23
13.04	12h	7th Bedok Reservoir 12 hour Ultramarathon	55.900 km	32
01.03	100km	8th TransLantau 100 Ultra Trail	24:50:30 h	227
26.01	12h	4th Garang Warrior Ultra 12 Hour Run	52.000 km	71
2018
15.12	100km	6th The North Face 100 Hong Kong	25:34:30 h	361
10.11	52km	2nd TransNT 57 km Run	11:33:22 h	334
03.11	100mi	7th Craze Ultra 100 Miles	25:14:34 h	4
28.07	55km	3rd Cameron 55 km Ultra Trail	12:22:40 h	154
21.07	16h	8th Twilight Ultra Challenge	60.000 km	48
28.04	92km	5th Shizuoka to Yamanashi	19:30:59 h	481
21.04	12h	6th Bedok Reservoir 12 hour Ultramarathon	51.600 km	50
02.03	100km	7th TransLantau 100 Ultra Trail	27:41:22 h	278
27.01	100km	8th Hong Kong 100 Ultra Trail Race	22:41:25 h	989
13.01	57km	1st TransNT 57 km Run	12:25:58 h	307
2017
17.12	53km	1st Janda Baik Ultra 53 km	9:09:52 h	165
28.10	100km	1st Chicken Ultra Singapore	16:48:00 h	2 🥈
14.10	100km	5th Transjeju Int. Trail Run 100	24:48:40 h	104
23.09	16h	7th Twilight Ultra Challenge	75.000 km	20
12.08	100mi	6th Craze Ultra 100 Miles	26:20:02 h	7
22.07	55km	2nd Cameron 55 km Ultra Trail	12:31:51 h	170
08.07	12h	5th Bedok Reservoir 12 hour Ultramarathon	68.800 km	15
20.05	100km	10th Ultra-Trail Australia 100 km	22:23:32 h	942
29.04	200km	3rd Monster Ultra 200	46:13:00 h	14
10.03	100km	6th TransLantau 100 Ultra Trail	29:44:44 h	425
2016
08.10	100km	1st Cameron 100 km Ultra Trail	30:37:03 h	142
03.09	100mi	5th Craze Ultra 100 Miles	30:02:53 h	13
06.08	200mi	2nd Singapore 200 Miles Ultra (For the Insanes. By the Insanes)	3d 06:44:00 h	3 🥉
23.07	12h	4th Bedok Reservoir 12 hour Ultramarathon	55.900 km	33
16.07	50km	2nd MSIG Singapore Action Asia 50	7:46:39 h	166
14.05	100km	9th Ultra-Trail Australia 100 km	22:25:01 h	853
01.05	12h	1st Garang Warrior Ultra 12 Hour Run	55.000 km	29
19.03	16h	6th Twilight Ultra Challenge	80.000 km	29
12.03	50km	5th TransLantau 50 Ultra Trail	11:05:40 h	370
01.01	200km	2nd Monster Ultra 200	43:33:00 h	4
2015
31.10	12h	3rd Bedok Reservoir 12 hour Ultramarathon	64.500 km	28
05.09	100mi	4th Craze Ultra 100 Miles	31:16:39 h	15
28.03	16h	5th Twilight Ultra Challenge	91.000 km	31
14.03	50km	4th TransLantau 50 Ultra Trail	12:57:02 h	461
2014
31.10	200km	1st Monster Ultra 200	45:16:00 h	14
10.10	100km	The North Face 100 Singapore	16:37:32 h	41
20.09	100mi	3rd Craze Ultra 100 Miles	30:07:19 h	10
16.08	12h	2nd Bedok Reservoir 12 hour Ultramarathon	64.500 km	31
29.03	16h	Twilight Ultra Challenge	50.000 km	120
2013
04.10	100km	The North Face 100 Singapore	17:37:47 h	54
21.09	100mi	2nd Craze Ultra 100 Miles	29:43:55 h	7
30.03	16h	Twilight Ultra Challenge	100.000 km	18
2012
30.12	12h	4th MR25 Cross Country Ultra Marathon	51.000 km	122
13.10	50km	The North Face 50 Singapore	6:55:36 h	212
22.09	101km	1st Craze Ultra 101 km	17:15:40 h	8

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	6/8/2016	2nd Singapore 200 Miles Ultra (For the Insanes. By the Insanes)	321,87	×5
✓ 2	29/4/2017	3rd Monster Ultra 200	200,00	×3
✓ 3	1/1/2016	2nd Monster Ultra 200	200,00	×3
✓ 4	31/10/2014	1st Monster Ultra 200	200,00	×3
✓ 5	4/1/2020	5th Ultra-Trail Tai Mo Shan (UTMT) 100 Mile	162,00	×2
✓ 6	3/11/2018	7th Craze Ultra 100 Miles	160,93	×2
✓ 7	12/8/2017	6th Craze Ultra 100 Miles	160,93	×2
✓ 8	3/9/2016	5th Craze Ultra 100 Miles	160,93	×2
✓ 9	5/9/2015	4th Craze Ultra 100 Miles	160,93	×2
✓ 10	20/9/2014	3rd Craze Ultra 100 Miles	160,93	×2
✓ 11	21/9/2013	2nd Craze Ultra 100 Miles	160,93	×2
✓ 12	11/11/2023	10th TransLantau 100 by UTMB	103,00	×1
✓ 13	28/9/2024	12th Craze Ultra 101 km	101,00	×1
✓ 14	30/9/2023	11th Craze Ultra 101 km	101,00	×1
✓ 15	1/10/2022	10th Craze Ultra 101 km	101,00	×1
✓ 16	22/9/2012	1st Craze Ultra 101 km	101,00	×1
✓ 17	18/7/2026	The Guzzler Ultra 100km	100,00	×1
✓ 18	24/1/2026	16th Hong Kong 100 Ultra Trail Race	100,00	×1
✓ 19	19/7/2025	The Guzzler Ultra 100km	100,00	×1
✓ 20	9/11/2024	11th TransLantau 100 by UTMB	100,00	×1
✓ 21	20/7/2024	The Guzzler Ultra 100km	100,00	×1
✓ 22	20/1/2024	14th Hong Kong 100 Ultra Trail Race	100,00	×1
✓ 23	22/7/2023	The Guzzler Ultra 100km	100,00	×1
✓ 24	23/7/2022	The Guzzler Ultra 100km	100,00	×1
✓ 25	12/10/2019	2nd Ultramarathon de Sai Kung	100,00	×1
✓ 26	1/3/2019	8th TransLantau 100 Ultra Trail	100,00	×1
✓ 27	15/12/2018	6th The North Face 100 Hong Kong	100,00	×1
✓ 28	2/3/2018	7th TransLantau 100 Ultra Trail	100,00	×1
✓ 29	27/1/2018	8th Hong Kong 100 Ultra Trail Race	100,00	×1
✓ 30	28/10/2017	1st Chicken Ultra Singapore	100,00	×1
✓ 31	14/10/2017	5th Transjeju Int. Trail Run 100	100,00	×1
✓ 32	20/5/2017	10th Ultra-Trail Australia 100 km	100,00	×1
✓ 33	10/3/2017	6th TransLantau 100 Ultra Trail	100,00	×1
✓ 34	8/10/2016	1st Cameron 100 km Ultra Trail	100,00	×1
✓ 35	14/5/2016	9th Ultra-Trail Australia 100 km	100,00	×1
✓ 36	10/10/2014	The North Face 100 Singapore	100,00	×1
✓ 37	4/10/2013	The North Face 100 Singapore	100,00	×1
✓ 38	30/3/2013	Twilight Ultra Challenge	100,00	×1
✓ 39	28/4/2018	5th Shizuoka to Yamanashi (STY)	92,00	×1
✓ 40	28/3/2015	5th Twilight Ultra Challenge	91,00	×1
✓ 41	8/2/2025	5th Lucky 88.88km Hall of Fortune	88,00	×1
✓ 42	17/2/2024	4th Lucky 88.88km Hall of Fortune	88,00	×1
✓ 43	20/7/2019	9th Twilight Ultra Challenge	80,00	×1
✓ 44	19/3/2016	6th Twilight Ultra Challenge	80,00	×1
✓ 45	23/9/2017	7th Twilight Ultra Challenge	75,00	×1
✓ 46	16/3/2024	9th Lantau Trail race 70k	70,00	×1
✓ 47	8/7/2017	5th Bedok Reservoir 12 hour Ultramarathon	68,80	×1
✓ 48	29/3/2025	10th Lantau Trail race 70k	64,50	×1
✓ 49	31/10/2015	3rd Bedok Reservoir 12 hour Ultramarathon	64,50	×1
✓ 50	16/8/2014	2nd Bedok Reservoir 12 hour Ultramarathon	64,50	×1
✓ 51	21/7/2018	8th Twilight Ultra Challenge	60,00	—
✓ 52	13/1/2018	1st TransNT 57 km Run	57,00	—
✓ 53	24/6/2023	8th Bedok Reservoir 12 hour Ultramarathon	56,94	—
✓ 54	13/4/2019	7th Bedok Reservoir 12 hour Ultramarathon	55,90	—
✓ 55	23/7/2016	4th Bedok Reservoir 12 hour Ultramarathon	55,90	—
56	28/7/2018	3rd Cameron 55 km Ultra Trail	55,00	—
57	22/7/2017	2nd Cameron 55 km Ultra Trail	55,00	—
58	1/5/2016	1st Garang Warrior Ultra 12 Hour Run	55,00	—
59	17/12/2017	1st Janda Baik Ultra 53 km	53,00	—
60	15/2/2020	5th Garang Warrior Ultra 12 Hour Run	52,00	—
61	26/1/2019	4th Garang Warrior Ultra 12 Hour Run	52,00	—
62	10/11/2018	2nd TransNT 57 km Run	52,00	—
63	21/4/2018	6th Bedok Reservoir 12 hour Ultramarathon	51,60	—
64	30/12/2012	4th MR25 Cross Country Ultra Marathon	51,00	—
65	9/12/2023	4th Doi Inthanon Thailand by UTMB - HMONG 50	50,00	—
66	16/7/2016	2nd MSIG Singapore Action Asia 50	50,00	—
67	12/3/2016	5th TransLantau 50 Ultra Trail	50,00	—
68	14/3/2015	4th TransLantau 50 Ultra Trail	50,00	—
69	29/3/2014	Twilight Ultra Challenge	50,00	—
70	13/10/2012	The North Face 50 Singapore	50,00	—