Kan (手塚寛) Tezuka
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.
13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
59,2%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 4 052; Σ finishers = 6 841. 4 052 / 6 841 × 100 = 59.23%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races988 km
> 100 km2
Longest race118,0 km
33th Fuji 5 Lakes 118 km Challenge — 16/4/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road75,7%
Trail24,3%
Records
HISTORY
13 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/4/2023 | 33th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 2 | 21/4/2019 | 29th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 3 | 22/5/2022 | 28th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 4 | 18/10/2015 | 4th Noto Peninsula 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 5 | 29/9/2013 | 16th Muraoka 88 km Ultra Marathon | 88,00 | ×3 |
| ✓ 6 | 10/10/2010 | 18th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 7 | 16/12/2018 | Coast to Coast 70k Trail Run | 68,00 | ×2 |
| ✓ 8 | 27/3/2016 | 14th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 9 | 29/3/2015 | 12th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 10 | 25/10/2014 | 11th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 11 | 27/10/2013 | 9th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 12 | 12/5/2018 | 4th Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |
| ✓ 13 | 3/12/2017 | 5th Kumano Old Trails | 50,00 | ×1 |