David Tan
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Ultrarunner since 2016
6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
19
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
1
Countries visited ?Singapore
Singapore50,1%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 372; Σ finishers = 742. 372 / 742 × 100 = 50.13%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races424 km
> 100 km2
Longest race101,0 km
6th Craze Ultra 101 km — 12/8/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
HISTORY
6 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2023 | ||||
| 24.06 | 12h | 8th Bedok Reservoir 12 hour Ultramarathon - Team of 2 category |
65.700 km | 14 |
| 2018 | ||||
| 21.07 | 16h | 8th Twilight Ultra Challenge |
50.000 km | 85 |
| 13.01 | 12h | 3rd Garang Warrior Ultra 12 Hour Run |
56.000 km | 55 |
| 2017 | ||||
| 07.10 | 50km | 1st SG-Ultra Marathon - 50 km |
6:44:57 h | 67 |
| 12.08 | 101km | 6th Craze Ultra 101 km |
22:42:03 h | 79 |
| 2016 | ||||
| 03.09 | 101km | 5th Craze Ultra 101 km |
21:38:41 h | 78 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 12/8/2017 | 6th Craze Ultra 101 km | 101,00 | ×5 |
| ✓ 2 | 3/9/2016 | 5th Craze Ultra 101 km | 101,00 | ×5 |
| ✓ 3 | 24/6/2023 | 8th Bedok Reservoir 12 hour Ultramarathon - Team of 2 category | 65,70 | ×3 |
| ✓ 4 | 13/1/2018 | 3rd Garang Warrior Ultra 12 Hour Run | 56,00 | ×2 |
| ✓ 5 | 21/7/2018 | 8th Twilight Ultra Challenge | 50,00 | ×2 |
| ✓ 6 | 7/10/2017 | 1st SG-Ultra Marathon - 50 km | 50,00 | ×2 |