Xiao-Gang (张小刚) Zhang
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15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
41
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
20,7%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 1 065; Σ finishers = 5 151. 1 065 / 5 151 × 100 = 20.68%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 992 km
> 100 km7
> 160 km3
> 200 km2
Longest race450,0 km
3rd Mt. Wumeng Ultra Trail 450km — 11/5/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/5/2019 | 3rd Mt. Wumeng Ultra Trail 450km | 450,00 | ×10 |
| ✓ 2 | 11/8/2018 | 2nd Mt. Wumeng Ultra Trail 333km | 333,00 | ×8 |
| ✓ 3 | 23/11/2017 | 3rd Ultra-Trail Three Gorges 168 km | 168,00 | ×4 |
| ✓ 4 | 20/11/2020 | 2nd Panda Trail by UTMB - DPT 160km | 160,00 | ×3 |
| ✓ 5 | 15/4/2023 | 9th Ninghai Ultra Trail - 100km | 109,60 | ×2 |
| ✓ 6 | 4/11/2017 | 2nd China 100 mountain cross - 100 km Jigong Mountain | 101,00 | ×2 |
| ✓ 7 | 19/9/2020 | 4th Nanjing Laoshan National Forest Park 100 Cross | 100,10 | ×2 |
| ✓ 8 | 29/9/2020 | 3rd The Yellow River Stone Forest Ultra Run | 100,00 | ×2 |
| ✓ 9 | 9/8/2017 | 4th Zhangye Qilian Mountain 100 km Trail Challenge | 100,00 | ×2 |
| ✓ 10 | 4/3/2017 | 1st Nanjing Laoshan National Forest Park 100 Cross | 100,00 | ×2 |
| ✓ 11 | 15/8/2020 | 4th Columbia 70 Ultra Trail Chongli Challenge Race | 70,00 | ×1 |
| ✓ 12 | 30/6/2019 | 4th Peak of Chongli Trail 50 km | 50,00 | ×1 |
| ✓ 13 | 15/7/2017 | 1st Columbia 50 Ultra Trail Chongli Challenge Race | 50,00 | ×1 |
| ✓ 14 | 25/6/2017 | 2nd Peak of Chongli Trail 50 km | 50,00 | ×1 |
| ✓ 15 | 13/10/2019 | 6th Great Walker Beijing - 50 km | 49,80 | ×1 |