Min-Fooi (Danny) Chai
ID 439903
Born : 1969 Cat. M55 Ultrarunner since 2013 MAS
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
46
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
1
Countries visited ?MASMalaysia
28,9%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 1 619; Σ finishers = 5 608. 1 619 / 5 608 × 100 = 28.87%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed33
Km — ultra races2 447 km
> 100 km6
> 160 km3
> 200 km1
> 24h3
Longest race250,0 km
2nd Borneo Death March 250km Ultra Marathon — 25/4/2016

Km per year (ultra races)

112
2 races
2022
200
4 races
2023
100
2 races
2024
50
1 race
2025
53
1 race
2026

Race types (share of distance)

Road55,8%
Trail32,1%
Stage10,2%
Elim.1,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M3
Longest winning streak0
Current streak0

Records

50 km5h34'14100 km15h30'00100 mi31h05'5012 h80,00 km24 h150,65 kmBackyard7 loops

HISTORY

28 race(s)
DateRacePerf.Rk
2026
01.08 53km MAS4th Magnificent Baling 50 8:50:43 h348
2025
20.12 50km MAS3rd Perlis Ultra Marathon 50km 6:49:30 h25
2024
22.06 50km MAS1st Trans QJM Gunung Pulai Ultra 19:15:51 h69
03.03 50km MAS9th Route 68 Challenge - 50 km 6:10:36 h26
2023
04.11 50km MAS6th Malaysia Mountain Trail Festival - 50KM Ultra Challenge 11:35:59 h141
14.10 50km MAS1st Magnificent Baling 50km 7:34:44 h30
17.06 50km MAS6th Janda Baik Ultra 50 km 9:08:36 h41
11.03 50km MAS1st TNBYY Ultra 17:39:23 h161
2022
08.10 62km MAS4th Ultimate Trails of Penang 60 km 17:02:56 h53
25.06 50km MAS1st Merapoh Rainforest Trail - 50 km 9:25:48 h122
2019
29.11 50km MAS1st Sekinchan Ultra 50km 5:34:14 h22
03.08 Backyard Ultra MAS1st Malaysia Backyard Ultra 46.942 km (7h)15
2018
30.11 70km MAS1st Malaysia Mountain Trail Festival 21:00:12 h109
28.07 100km MAS3rd Cameron 100 km Ultra Trail 25:47:09 h92
12.05 100km MAS4th Ultimate Trails Of Penang Eco 100 km 23:12:40 h21
10.02 24h MAS4th 24H Ultra Run 150.183 km4
13.01 12h MAS1st Run For It X 12 Hour Challenge 80.000 km15
2017
14.01 16h MAS4th Watergate 16hr 105.000 km5
2016
25.04 250km/6stages MAS2nd Borneo Death March 250km Ultra Marathon 42:45:42 h10
19.03 100km MASTITI 100km Road Ultra Marathon 15:40:41 h24
30.01 24h MAS2nd 24H Ultra Run 150.650 km3 🥉
2015
10.05 68km MAS1st Route 68 Challenge - 68 km 9:54:44 h75
06.03 200km MASTITI 200km Road Ultra Marathon 35:19:23 h5
2014
22.11 100mi MAS1st Putrajaya 100 - 100 Miles Run 31:05:50 h12
02.03 12h MAS2nd Gunung Nuang Endurance 12 hour Run 50.000 km34
15.02 100km MASTITI 100km Road Ultra Marathon 15:30:00 h30
2013
14.09 100km MASThe Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon 31:44:00 h99
03.03 12h MAS1st Gunung Nuang Endurance 12 hour Run 50.000 km56