Qiang (徐强) Xu
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Born : 1979
Cat. M45 Ultrarunner since 2017
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
13
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
China6,5%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 37; Σ finishers = 565. 37 / 565 × 100 = 6.55%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races211 km
Longest race60,6 km
1st Chengdu Trail 60+ Challenge - Tanshan Mountain — 30/11/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road23,7%
Trail76,3%
Records
HISTORY
4 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 30/11/2019 | 1st Chengdu Trail 60+ Challenge - Tanshan Mountain | 60,60 | ×4 |
| ✓ 2 | 23/12/2017 | 1st Xtrail - Yunnan Weixin Trail Challenge | 50,00 | ×3 |
| ✓ 3 | 30/9/2017 | Fuxian Lake Highland Ultramarathon 50K - Open race | 50,00 | ×3 |
| ✓ 4 | 8/4/2017 | Muye Trail Mount Qingcheng Int. Challenge | 50,00 | ×3 |