Junko (佐久間潤子) Sakuma
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Born : 1972
Cat. W50 Ultrarunner since 2009
20
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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 ?Japan
Japan66,1%
Rank quotient ?This runner's calculation uses 20 eligible race(s): Σ(rank − 1) = 7 504; Σ finishers = 11 361. 7 504 / 11 361 × 100 = 66.05%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed20
Km — ultra races1 483 km
Longest race100,0 km
38. Lake Saroma 100 km Ultramarathon — 25/6/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road92,2%
Trail7,8%
Records
HISTORY
20 race(s)| Runner | Races in common |
|---|---|