Fu-Yung (Jason) Chen
External sources
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12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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 ?
Indonesia
Malaysia
Philippines
50,0%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 1 172; Σ finishers = 2 343. 1 172 / 2 343 × 100 = 50.02%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races1 047 km
> 100 km1
Longest race157,0 km
8th Kadamaian Adventure Race - KAR Ultra 100mi — 24/7/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/7/2026 | 8th Kadamaian Adventure Race - KAR Ultra 100mi | 157,00 | ×5 |
| ✓ 2 | 22/6/2019 | 5th Ultimate Trails Of Penang Eco 100 km | 100,00 | ×3 |
| ✓ 3 | 16/2/2019 | 8th King of the Mountain - Four Lakes 100k | 100,00 | ×3 |
| ✓ 4 | 28/7/2018 | 3rd Cameron 100 km Ultra Trail | 100,00 | ×3 |
| ✓ 5 | 16/9/2017 | 7th The Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon | 100,00 | ×3 |
| ✓ 6 | 29/10/2016 | 6th The Most Beautiful Thing (TMBT) 100 km Ultra Trail Marathon | 100,00 | ×3 |
| ✓ 7 | 4/6/2016 | 1st Borneo Ultra Trail Marathon BUTM - 100 km | 100,00 | ×3 |
| ✓ 8 | 14/6/2025 | 2nd Point Trail Ultra | 70,00 | ×2 |
| ✓ 9 | 15/5/2026 | 4th BTR Ultra | 60,00 | ×2 |
| ✓ 10 | 6/3/2016 | Beaufort Ultra Marathon 60K | 60,00 | ×2 |
| ✓ 11 | 10/3/2018 | 3rd Borneo Ultra Trail Marathon BUTM - 50 km | 50,00 | ×1 |
| ✓ 12 | 1/4/2017 | 6th King of the Mountain - Old Spanish Trail 50K | 50,00 | ×1 |