Siok-Luan (Joreen) Koh
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Born : 1976
Cat. W50 Ultrarunner since 2015
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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 ?
MalaysiaSingapore
Thailand
MalaysiaSingaporeThailand36,8%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 815; Σ finishers = 2 214. 815 / 2 214 × 100 = 36.81%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races639 km
> 100 km1
> 160 km1
Longest race160,9 km
6th Craze Ultra 100 Miles — 12/8/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road64,3%
Trail35,7%
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 27.10 | 50km | 1st Labuan Ultra Marathon |
6:54:34 h | 89 |
| 2018 | ||||
| 29.07 | 50km | 14th The Columbia Trail Masters |
11:11:23 h | 295 |
| 2017 | ||||
| 12.08 | 100mi | 6th Craze Ultra 100 Miles |
29:32:36 h | 17 |
| 16.04 | 50km | 3rd Route 68 Challenge - 50 km |
6:20:48 h | 50 |
| 18.03 | 100km | 4th TITI 100km Road Ultra Marathon |
16:02:10 h | 84 |
| 2016 | ||||
| 18.12 | 12h | 8th MR25 Cross Country Ultra Marathon |
63.000 km | 40 |
| 2015 | ||||
| 27.12 | 12h | 7th MR25 Cross Country Ultra Marathon |
63.000 km | 62 |
| 10.05 | 50km | 1st Route 68 Challenge - 50 km |
6:13:06 h | 35 |
| 03.01 | 12h | 6th MR25 Cross Country Ultra Marathon |
51.750 km | 152 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 12/8/2017 | 6th Craze Ultra 100 Miles | 160,93 | ×6 |
| ✓ 2 | 18/3/2017 | 4th TITI 100km Road Ultra Marathon | 100,00 | ×4 |
| ✓ 3 | 18/12/2016 | 8th MR25 Cross Country Ultra Marathon | 63,00 | ×2 |
| ✓ 4 | 27/12/2015 | 7th MR25 Cross Country Ultra Marathon | 63,00 | ×2 |
| ✓ 5 | 3/1/2015 | 6th MR25 Cross Country Ultra Marathon | 51,75 | ×2 |
| ✓ 6 | 27/10/2019 | 1st Labuan Ultra Marathon | 50,00 | ×2 |
| ✓ 7 | 29/7/2018 | 14th The Columbia Trail Masters | 50,00 | ×2 |
| ✓ 8 | 16/4/2017 | 3rd Route 68 Challenge - 50 km | 50,00 | ×2 |
| ✓ 9 | 10/5/2015 | 1st Route 68 Challenge - 50 km | 50,00 | ×2 |