Chang-Gui (任昌贵) Ren
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Born : 1962
Cat. M60 Ultrarunner since 2016
6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
China32,8%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 461; Σ finishers = 1 404. 461 / 1 404 × 100 = 32.83%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races654 km
> 100 km2
> 160 km1
> 24h1
Longest race168,0 km
3rd Ultra-Trail Three Gorges 168 km — 23/11/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road20,5%
Trail79,5%
Records
HISTORY
6 race(s) · 5 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 23/11/2017 | 3rd Ultra-Trail Three Gorges 168 km | 168,00 | ×6 |
| ✓ 2 | 9/12/2017 | 1st Hangzhou ultramarathon 24H race | 133,95 | ×5 |
| ✓ 3 | 16/4/2017 | 9th The North Face 100 China | 100,00 | ×4 |
| ✓ 4 | 22/10/2016 | 1st The Summit of Jinhuashan 100 km | 100,00 | ×4 |
| ✓ 5 | 16/4/2016 | 1st Huangshan 100K | 100,00 | ×4 |
| ✓ 6 | 6/10/2016 | 3rd Shaowu Road Trail | 52,10 | ×2 |