A-Lin (段阿林) Duan
Born : 1982 Cat. M40 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.
45
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
2
Countries visited ?CHNChinaHKGHong Kong
58,5%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 2 623; Σ finishers = 4 480. 2 623 / 4 480 × 100 = 58.55%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed22
Km — ultra races2 328 km
> 100 km7
> 160 km3
Longest race168,0 km

Km per year (ultra races)

2022
400
4 races
2023
361
3 races
2024
209
2 races
2025
213
2 races
2026

Race types (share of distance)

Road4,3%
Trail95,7%