Mazarul Arif Osman
ID 439873
Born : 1975 Cat. M50 Ultrarunner since 2013 MAS
32
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
47
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
3
Countries visited ?AUSAustraliaMASMalaysiaTHAThailand
24,2%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 999; Σ finishers = 4 129. 999 / 4 129 × 100 = 24.19%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 618 km
> 100 km4
> 160 km2
> 24h3
Longest race168,0 km
4th Route 68 Challenge - 168km — 28/4/2018

Km per year (ultra races)

2022
450
5 races
2023
216
3 races
2024
2025
47
1 race
2026

Race types (share of distance)

Road47,8%
Trail50,4%
Elim.1,8%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 36
🏅 Top 3 M6
Longest winning streak1
Current streak0

Records

50 km4h18'34100 km14h30'24100 mi37h22'286 h58,50 km12 h98,00 km24 h130,20 kmBackyard7 loops

HISTORY

32 race(s)
DateRacePerf.Rk
2026
31.01 Backyard Ultra MAS4th Pirate Backyard Ultra 46.942 km (7h)37
2024
19.10 50km MAS1st YB3B Challenge 19:23:22 h39
24.08 50km MAS3rd Pahang Eco 50km 10:36:21 h9
02.03 24h MAS2nd Hidden Village Endurance 115.500 km6
2023
25.06 50km MAS1st Trail des Gombak 6:45:48 h5
02.06 100mi MAS2nd Merapoh Rainforest Trail - 100 Miles 37:22:28 h6
21.05 6h MAS4th Tin Mines Endurance Challenge - 6h 50.400 km5
11.03 24h MAS1st Hidden Village Endurance 130.200 km4
18.02 6h MAS4th Malatra Endurance Run 6h (Night) 58.500 km2 🥈
2021
18.12 84km MAS4th Malaysia Mountain Trail Festival - 84KM Ultra Challenge 15:24:12 h24
2020
01.02 84km MAS4th UiTM Ultramarathon 84 km 10:24:03 h5
2019
28.12 12h MAS3rd Malatra Endurance Run 12h 81.200 km6
19.10 100km MAS1st The Great Malaya Trail 100 km 29:17:34 h6
24.08 100km MAS5th The Magnificent Merapoh Trail (TMMT) 100 km 14:30:24 h22
17.08 50km MAS4th Fraser Ultra 50 km 4:18:34 h1 🏆
27.07 55km MAS4th Cameron 55 km Ultra Trail 8:21:46 h12
06.07 12h MAS2nd Tin Mines Endurance Challenge - 12h 98.000 km3 🥉
21.04 50km MAS5th Route 68 Challenge - 50 km 5:00:56 h6
23.03 50km MAS3rd Gopeng Ultra Trail 50 km 6:05:51 h7
2018
11.08 70km MAS4th The Magnificent Merapoh Trail (TMMT) 70 km 8:34:14 h2 🥈
28.04 168km MAS4th Route 68 Challenge - 168km 27:13:09 h6
01.04 50km MAS2nd Sungai Menyala Forest Trail 5:43:59 h11
24.03 100km MAS2nd Gopeng Ultra Trail 100 km 17:07:07 h12
2017
30.12 12h MAS1st Malatra Endurance Run 12h 95.200 km2 🥈
15.10 50km MAS2nd King Of Sungai Lembing 5:36:00 h3 🥉
22.07 100km MAS2nd Cameron 100 km Ultra Trail 18:38:48 h9
26.02 12h MAS5th Gunung Nuang Endurance 12 hour Run 60.000 km18
2015
16.05 100km AUS8th The North Face 100 Australia 18:39:12 h597
2014
16.08 100km MASThe Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon 26:40:41 h30
15.02 100km MASTITI 100km Road Ultra Marathon 17:44:00 h77
08.02 100km THA3rd The North Face 100 Thailand - 100 km 17:47:02 h47
2013
03.03 12h MAS1st Gunung Nuang Endurance 12 hour Run 60.000 km12