James Chong
External sources
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16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
2
Countries visited ?
Malaysia
Singapore
35,5%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 1 023; Σ finishers = 2 883. 1 023 / 2 883 × 100 = 35.48%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 347 km
> 100 km6
> 160 km1
Longest race160,9 km
1st Borneo 100 Miler — 3/6/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road29,3%
Trail70,7%
Records
HISTORY
16 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/6/2023 | 1st Borneo 100 Miler | 160,93 | ×4 |
| ✓ 2 | 24/7/2026 | 8th Kadamaian Adventure Race - KAR Ultra 100mi | 157,00 | ×4 |
| ✓ 3 | 27/7/2024 | 6th Kadamaian Adventure Race | 110,00 | ×3 |
| ✓ 4 | 2/9/2023 | 11th The Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon | 109,00 | ×3 |
| ✓ 5 | 2/3/2024 | 8th Borneo Ultra Trail Marathon BUTM - 100 km | 106,00 | ×3 |
| ✓ 6 | 22/9/2012 | 1st Craze Ultra 101 km | 101,00 | ×3 |
| ✓ 7 | 2/3/2019 | 3rd Kuching 100 km Road Ultra | 100,00 | ×3 |
| ✓ 8 | 1/9/2018 | 8th The Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon | 100,00 | ×3 |
| ✓ 9 | 6/3/2016 | Beaufort Ultra Marathon 60K | 60,00 | ×1 |
| ✓ 10 | 14/12/2024 | 1st Borneo Ultra Highland Marathon | 50,00 | ×1 |
| ✓ 11 | 11/3/2023 | 7th Borneo Ultra Trail Marathon BUTM - 50 km | 50,00 | ×1 |
| ✓ 12 | 15/10/2022 | 1st kokol ultra | 50,00 | ×1 |
| ✓ 13 | 27/10/2019 | 1st Labuan Ultra Marathon | 50,00 | ×1 |
| ✓ 14 | 29/8/2015 | 5th The Most Beautiful Thing (TMBT) 50 km Ultra Trail Marathon | 50,00 | ×1 |
| ✓ 15 | 12/1/2020 | Beaufort Ultra Marathon 47K | 47,00 | ×1 |
| ✓ 16 | 6/7/2025 | 1st Bayu Run North Borneo Marathon | 46,00 | ×1 |