Zheng-Jun (余政军) Yu
Born : 1972 Cat. M50 Ultrarunner since 2016 CHN
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
34
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
32,1%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 1 969; Σ finishers = 6 142. 1 969 / 6 142 × 100 = 32.06%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races1 628 km
> 100 km4
> 160 km1
Longest race170,0 km

Km per year (ultra races)

52
1 race
2022
130
2 races
2023
214
4 races
2024
50
1 race
2025
55
1 race
2026

Race types (share of distance)

Trail100,0%