Michiaki (横山光亮) Yokoyama
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 : 1972
Cat. M50 Ultrarunner since 2017
12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
29
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
Japan41,7%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 1 122; Σ finishers = 2 688. 1 122 / 2 688 × 100 = 41.74%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races1 094 km
> 100 km2
> 160 km1
Longest race173,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/5/2022 | 16th Nagasaki Tachibana Gulf Coast Super Maranic 173 | 173,00 | ×5 |
| ✓ 2 | 26/11/2021 | 1st Tachibana Bay 273 Autumn Shimabara | 103,00 | ×3 |
| ✓ 3 | 15/10/2022 | 5th Iki 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 4 | 19/10/2019 | 4th Iki 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 5 | 20/10/2018 | 3rd Iki 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 12/6/2022 | 6th JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 7 | 9/6/2019 | 3rd JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 8 | 10/6/2018 | 2nd JAL Mukatsuku Double Marathon | 84,39 | ×2 |
| ✓ 9 | 5/5/2019 | 13th Nagasaki Tachibana Gulf Coast Super Maranic 80 | 80,00 | ×2 |
| ✓ 10 | 5/5/2018 | 12th Nagasaki Tachibana Gulf Coast Super Maranic 80 | 80,00 | ×2 |
| ✓ 11 | 4/5/2017 | 11th Nagasaki Tachibana Gulf Coast Super Maranic 55 | 55,00 | ×1 |
| ✓ 12 | 21/10/2017 | 2nd Iki 50 km Ultra Marathon | 50,00 | ×1 |