Kota (白川幸太) Shirakawa
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.
32
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
17,0%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 846; Σ finishers = 4 989. 846 / 4 989 × 100 = 16.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 164 km
> 100 km3
> 160 km2
Longest race167,0 km
6th Ultra-Trail Mt. Fuji (UTMF) — 26/4/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road8,6%
Trail91,4%
HISTORY
13 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/4/2019 | 6th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×5 |
| ✓ 2 | 10/10/2020 | 6th OSJ Koumi 100 | 160,93 | ×5 |
| ✓ 3 | 20/6/2026 | 2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance100 | 105,00 | ×3 |
| ✓ 4 | 15/7/2017 | 10th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 5 | 23/4/2017 | 27th Fuji 5 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 6 | 22/6/2019 | 5th OSJ Yamanaka Onsen Trail Run | 80,00 | ×2 |
| ✓ 7 | 23/6/2018 | 4th OSJ Yamanaka Onsen Trail Run | 80,00 | ×2 |
| ✓ 8 | 29/10/2017 | 3rd OSJ Yamanaka Onsen Trail Run | 75,00 | ×2 |
| ✓ 9 | 6/10/2019 | 5th Gasando Trail running race | 73,00 | ×2 |
| ✓ 10 | 14/10/2018 | 4th Gasando Trail running race | 73,00 | ×2 |
| ✓ 11 | 2/11/2025 | 11th Nakanoto Treasure Trail Run Festival | 50,00 | ×1 |
| ✓ 12 | 3/11/2019 | 6th Nakanoto Treasure Trail Run Festival | 50,00 | ×1 |
| ✓ 13 | 12/5/2018 | 4th Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |