Phei-Sunn Sim
Born : 1975 Cat. W50 Ultrarunner since 2008 SGP
51
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
58
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
14
Countries visited ?AUSAustraliaCANCanadaFRAFranceHKGHong KongINAIndonesiaITAItalyMASMalaysiaNZLNew ZealandPHIPhilippinesSGPSingaporeTHAThailandTPETaiwanUSAUnited StatesVIEVietnam
64,5%
Rank quotient ?This runner's calculation uses 61 eligible race(s): Σ(rank − 1) = 17 866; Σ finishers = 27 718. 17 866 / 27 718 × 100 = 64.46%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed62
Km — ultra races5 609 km
> 100 km11
> 160 km6
Longest race175,0 km

Km per year (ultra races)

483
4 races
2022
275
3 races
2023
325
3 races
2024
85
1 race
2025
160
2 races
2026

Race types (share of distance)

Road10,5%
Trail88,0%
Stage1,5%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F3
🏅 Top 30
🏅 Top 3 F10
Longest winning streak0
Current streak0

HISTORY

61 race(s)
DateRacePerf.Rk
2026
07.06 60km SGP5th Ultra Trail Singapore 10:49:48 h83
24.01 100km HKG16th Hong Kong 100 Ultra Trail Race 24:34:14 h1520
2025
28.06 85km/2stages SGP4th Ultra Trail Singapore (UTSG) 85k Stage Race 12:43:25 h11
2024
06.12 175km THA1st Chiangmai Thailand by UTMB - TRANS-INT 160 46:33:51 h178
29.06 50km SGP3rd Ultra Trail Singapore 7:03:51 h103
20.01 100km HKG14th Hong Kong 100 Ultra Trail Race 26:59:08 h898
2023
25.11 75km TPE7th Formosa Trail 75km 18:03:20 h75
28.10 100km SGP2nd Ultra Trail Singapore 16:20:23 h31
18.02 100km HKG13th Hong Kong 100 Ultra Trail Race 24:50:26 h878
2022
09.12 171km THA3rd Thailand by UTMB - 100mi 47:31:48 h268
20.11 50km INA1st BTR Ultra Exhibition 15:33:15 h20
01.10 101km SGP10th Craze Ultra 101 km 19:13:00 h24
25.06 100mi USA49th Western States 100 Mile Endurance Run 29:51:02 h297
2020
18.01 100km HKG10th Hong Kong 100 Ultra Trail Race 24:50:35 h1031
2019
29.12 12h SGP11th MR25 Cross Country Ultra Marathon 84.000 km7
14.12 100km HKG7th The North Face 100 Hong Kong 26:32:59 h255
30.11 100km MAS1st Sekinchan Ultra 100km 14:06:28 h16
12.10 101km SGP8th Craze Ultra 101 km 15:36:05 h18
27.07 100km MAS4th Cameron 100 km Ultra Trail 27:00:21 h177
01.03 100km HKG8th TransLantau 100 Ultra Trail 26:44:25 h311
09.02 100mi NZL2nd Tarawera 100 Mile Endurance Run 32:28:36 h75
19.01 100km HKG9th Hong Kong 100 Ultra Trail Race 24:37:28 h822
2018
30.12 12h SGP10th MR25 Cross Country Ultra Marathon 73.500 km17
03.11 101km SGP7th Craze Ultra 101 km 15:42:15 h15
28.07 100km MAS3rd Cameron 100 km Ultra Trail 23:13:50 h61
07.07 64km SGP1st Force of Nature Ultra 9:03:14 h29
19.05 100km AUS11th Ultra-Trail Australia 100 km 18:28:52 h618
01.04 50km MAS2nd Sungai Menyala Forest Trail 6:50:54 h29
02.03 100km HKG7th TransLantau 100 Ultra Trail 26:00:23 h205
27.01 100km HKG8th Hong Kong 100 Ultra Trail Race 20:36:43 h752
2017
30.12 12h SGP9th MR25 Cross Country Ultra Marathon 84.000 km9
23.09 100km VIE5. Vietnam Mountain Marathon 100km 22:10:41 h38
26.08 60km SGPThe Greenrace Forest 60 7:57:16 h20
12.08 101km SGP6th Craze Ultra 101 km 13:39:50 h9
07.04 100mi USA6th The Zion 100 Mile Run 32:35:38 h141
14.01 100km HKG7th Hong Kong 100 Ultra Trail Race 22:03:39 h948
2016
18.12 12h SGP8th MR25 Cross Country Ultra Marathon 84.000 km15
26.08 170km FRA14ème Ultra Trail Tour du Mont Blanc 44:10:57 h1094
16.07 50km CAN3rd Endurance Challenge - Ontario Trail 50 km 6:55:57 h108
24.06 119km ITA10^ Lavaredo Ultra Trail by UTMB - 120K 29:33:21 h959
30.04 50mi USA9th Endurance Challenge - New York Trail 50 Miles 13:27:15 h289
09.04 50mi USA9th Endurance Challenge - Washington D.C. Trail 50 Miles 12:25:41 h193
12.03 50mi USA5th Marin Ultra Challenge 50 Mile Race 13:21:30 h110
23.01 100km HKG6th Hong Kong 100 Ultra Trail Race 24:41:29 h929
2015
05.12 50km USA5th NYC Staten Island Trail Festival 50K 5:55:52 h36
26.09 50km USA2nd Endurance Challenge - Utah Trail 50 km 7:55:21 h98
07.08 52km INA3rd Mt Rinjani Ultra - 52 km 21:53:44 h34
25.07 50km SGP1st MSIG Singapore Action Asia 50 5:56:24 h49
12.06 100km PHI4th The North Face 100 Philippines 26:18:00 h40
16.05 100km AUS8th The North Face 100 Australia 18:50:21 h621
13.03 100km HKG4th TransLantau 100 Ultra Trail 25:56:33 h208
17.01 100km HKG5th Hong Kong 100 Ultra Trail Race 19:37:51 h521
2014
01.11 70km HKG2nd Lantau Trail race 70k 15:45:58 h97
10.10 50km SGPThe North Face 50 Singapore 5:37:19 h25
20.09 70km VIE2. Vietnam Mountain Marathon 16:00:30 h53
18.01 100km HKG4th Hong Kong 100 Ultra Trail Race 23:20:49 h838
2013
04.10 50km SGPThe North Face 50 Singapore 6:50:58 h216
19.01 100km HKG3rd Hong Kong 100 Ultra Trail Race 23:01:57 h620
2012
13.10 50km SGPThe North Face 50 Singapore 6:35:33 h160
18.02 100km HKG2nd Hong Kong 100 Ultra Trail Race 24:48:23 h422
2008
31.05 84km SGP1st Sundown Night 84km 14:05:51 h203