Jian-Hong (徐建宏) Xu
External sources
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Born : 1977
Cat. M45 Ultrarunner since 2017
1
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
7
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
China21,4%
Rank quotient ?This runner's calculation uses 1 eligible race(s): Σ(rank − 1) = 45; Σ finishers = 210. 45 / 210 × 100 = 21.43%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed1
Km — ultra races50 km
Longest race50,0 km
1st Shengzhou Trail Challenge — 26/11/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
1 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2017 | ||||
| 26.11 | 50km | 1st Shengzhou Trail Challenge |
7:13:18 h | 46 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/11/2017 | 1st Shengzhou Trail Challenge | 50,00 | ×7 |