Kok-Kai (曾国凯) Chin
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Ultrarunner since 2005
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
5
Countries visited ?
Australia
Hong Kong
MalaysiaSingapore
Vietnam
AustraliaHong KongMalaysiaSingaporeVietnam53,7%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 1 518; Σ finishers = 2 825. 1 518 / 2 825 × 100 = 53.73%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races818 km
Longest race100,0 km
2nd Hong Kong 100 Ultra Trail Race — 18/2/2012
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road48,5%
Trail51,5%
Records
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2013 | ||||
| 05.10 | 70km | 1. Vietnam Mountain Marathon |
15:53:30 h | 37 |
| 2012 | ||||
| 18.02 | 100km | 2nd Hong Kong 100 Ultra Trail Race |
23:37:31 h | 401 |
| 2011 | ||||
| 05.11 | 100km | The Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon |
31:19:20 h | 38 |
| 25.06 | 100km | 1st Sundown 100 km Ultramarathon |
15:48:04 h | 286 |
| 15.01 | 100km | 1st Hong Kong 100 Ultra Trail Race |
31:06:00 h | 136 |
| 2010 | ||||
| 26.12 | 12h | 2nd MR25 Cross Country Ultra Marathon |
51.000 km | 89 |
| 29.05 | 84km | 3rd Sundown Night 84km |
10:19:01 h | 70 |
| 2009 | ||||
| 30.05 | 84km | 2nd Sundown Night 84km |
11:56:34 h | 146 |
| 2008 | ||||
| 31.05 | 84km | 1st Sundown Night 84km |
14:12:07 h | 208 |
| 2005 | ||||
| 15.05 | 45km | 1st The Great Ocean Road Int. Marathon |
4:01:47 h | 117 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 18/2/2012 | 2nd Hong Kong 100 Ultra Trail Race | 100,00 | ×4 |
| ✓ 2 | 5/11/2011 | The Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon | 100,00 | ×4 |
| ✓ 3 | 25/6/2011 | 1st Sundown 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 4 | 15/1/2011 | 1st Hong Kong 100 Ultra Trail Race | 100,00 | ×4 |
| ✓ 5 | 29/5/2010 | 3rd Sundown Night 84km | 84,00 | ×3 |
| ✓ 6 | 30/5/2009 | 2nd Sundown Night 84km | 84,00 | ×3 |
| ✓ 7 | 31/5/2008 | 1st Sundown Night 84km | 84,00 | ×3 |
| ✓ 8 | 5/10/2013 | 1. Vietnam Mountain Marathon | 70,00 | ×2 |
| ✓ 9 | 26/12/2010 | 2nd MR25 Cross Country Ultra Marathon | 51,00 | ×2 |
| ✓ 10 | 15/5/2005 | 1st The Great Ocean Road Int. Marathon | 45,00 | ×1 |