Yong (张勇) Zhang
Born : 1970 Cat. M55 Ultrarunner since 2015 CHN
19
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
32
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 ?CHNChina
57,8%
Rank quotient ?This runner's calculation uses 19 eligible race(s): Σ(rank − 1) = 4 716; Σ finishers = 8 155. 4 716 / 8 155 × 100 = 57.83%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed19
Km — ultra races1 292 km
> 100 km3
Longest race109,6 km

Km per year (ultra races)

103
1 race
2022
160
2 races
2023
267
4 races
2024
197
3 races
2025
2026

Race types (share of distance)

Road11,6%
Trail88,4%