Shigeko (真継成子) Masatsugu
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
Born : 1969
Cat. W55 Ultrarunner since 2012
27
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
39
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
Japan37,8%
Rank quotient ?This runner's calculation uses 27 eligible race(s): Σ(rank − 1) = 8 383; Σ finishers = 22 164. 8 383 / 22 164 × 100 = 37.82%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed27
Km — ultra races2 172 km
Longest race100,0 km
1st Nikko 100km Ultramarathon — 2/7/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road96,7%
Trail3,3%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F2
Longest winning streak0
Current streak0
HISTORY
27 race(s)| Runner | Races in common |
|---|---|