Huan-Guang (黄焕光) Huang
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
Born : 1970
Cat. M55 Ultrarunner since 2020
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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 ?China
China86,5%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 2 239; Σ finishers = 2 588. 2 239 / 2 588 × 100 = 86.51%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races566 km
Longest race100,0 km
6th Ultra Trail Mount Haituo - UTMH 100km — 16/8/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
9 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/8/2025 | 6th Ultra Trail Mount Haituo - UTMH 100km | 100,00 | ×4 |
| ✓ 2 | 23/11/2024 | 2nd Suzhou 100 Urban Ultra Trail | 100,00 | ×4 |
| ✓ 3 | 23/9/2023 | 5th Longji Ultra Trail Running Race - 66 km | 66,00 | ×3 |
| ✓ 4 | 3/8/2025 | 1st Liupanshui-Trailrunning | 50,00 | ×2 |
| ✓ 5 | 13/4/2025 | 2nd Zhongdu Ultra Trail | 50,00 | ×2 |
| ✓ 6 | 24/8/2024 | 5th Ultra Trail Challenge Bailidujuan 50 | 50,00 | ×2 |
| ✓ 7 | 22/10/2023 | 1st Zixi trail | 50,00 | ×2 |
| ✓ 8 | 26/8/2023 | 4th Ultra Trail Mount Haituo - UTMH 50km | 50,00 | ×2 |
| ✓ 9 | 5/12/2020 | 4th China 100 mountain cross - 50 km Yangshuo | 50,00 | ×2 |