Cheng-Zhi (尹成志) Yin
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Born : 1990
Cat. M35 Ultrarunner since 2023
22
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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
5
Countries visited ?China
Hong Kong
Japan
South Korea
Thailand
ChinaHong KongJapanSouth KoreaThailand35,7%
Rank quotient ?This runner's calculation uses 22 eligible race(s): Σ(rank − 1) = 6 216; Σ finishers = 17 402. 6 216 / 17 402 × 100 = 35.72%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed22
Km — ultra races1 898 km
> 100 km7
> 160 km2
Longest race169,0 km
5th Lake Biwa 100 — 10/10/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
22 race(s)| Runner | Races in common |
|---|---|