Alan Tung
Born : 1957 Cat. M65 Ultrarunner since 2008 SGP
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
9
Countries visited ?AUSAustraliaFRAFranceHKGHong KongITAItalyJPNJapanKORSouth KoreaROURomaniaSGPSingaporeTHAThailand
72,2%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 10 278; Σ finishers = 14 241. 10 278 / 14 241 × 100 = 72.17%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races2 888 km
> 100 km7
> 160 km4
> 200 km1
Longest race330,0 km

Km per year (ultra races)

204
2 races
2022
347
4 races
2023
293
3 races
2024
100
1 race
2025
155
2 races
2026

Race types (share of distance)

Road2,9%
Trail97,1%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

HISTORY

28 race(s)
DateRacePerf.Rk
2026
08.08 105km AUSScenic Rim Ultra 105km 25:41:18 h33
23.05 50km ROUTransylvania Half Hundred 21:26:44 h550
2025
18.01 100km HKG15th Hong Kong 100 Ultra Trail Race 25:37:53 h1204
2024
07.12 93km THA1st Chiangmai Thailand by UTMB - ELEPHANT 100 23:31:04 h502
12.10 100km KOR11th TransJeju by UTMB 100 25:32:57 h644
20.01 100km HKG14th Hong Kong 100 Ultra Trail Race 25:15:10 h748
2023
09.12 96.5km THA4th Doi Inthanon Thailand by UTMB - ELEPHANT 100 24:30:12 h394
28.10 100km SGP2nd Ultra Trail Singapore 17:21:50 h41
01.09 100km ITA17ème Courmayeur-Champex-Chamonix 25:21:37 h1441
29.07 50km SGP2nd Ultra Trail Singapore 7:38:23 h75
2022
10.12 104km THA3rd Thailand by UTMB - 104km 26:02:51 h235
22.10 100km SGP1st Ultra Trail Singapore 19:16:18 h32
2018
30.12 12h SGP10th MR25 Cross Country Ultra Marathon 52.500 km119
09.09 330km ITA9° Tor des Géants - 330 km Endurance Trail della Valle d'Aosta 6d 02:05:49 h463
19.05 100km AUS11th Ultra-Trail Australia 100 km 22:20:09 h855
02.03 100km HKG7th TransLantau 100 Ultra Trail 29:09:25 h328
2017
30.12 12h SGP9th MR25 Cross Country Ultra Marathon 73.500 km25
2016
16.07 50km SGP2nd MSIG Singapore Action Asia 50 6:52:22 h89
2015
25.09 170.3km JPN4th Ultra-Trail Mt. Fuji 40:14:49 h279
03.01 12h SGP6th MR25 Cross Country Ultra Marathon 82.800 km14
2014
29.08 168km FRA12ème Ultra Trail Tour du Mont Blanc 44:56:33 h1340
02.08 108km SGP2nd PEAK to PEAK Ultra 108km 25:13:00 h9
14.03 100km HKG3rd TransLantau 100 Ultra Trail 27:30:33 h232
2013
28.12 168km SGP1st PEAK to PEAK Ultra 168km 39:57:00 h3 🥉
2012
30.12 12h SGP4th MR25 Cross Country Ultra Marathon 51.000 km131
18.02 100km HKG2nd Hong Kong 100 Ultra Trail Race 23:35:41 h400
2009
27.12 12h SGP1st MR25 Cross Country Ultra Marathon 51.000 km85
2008
31.05 84km SGP1st Sundown Night 84km 10:11:09 h35