Ryoichi (田中良一) Tanaka
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.
14
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
12,5%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 722; Σ finishers = 5 792. 722 / 5 792 × 100 = 12.47%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 046 km
> 100 km3
> 160 km1
Longest race162,6 km
14th Shinetsu Five Mountains Trail 100 mile — 17/9/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
14 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/9/2022 | 14th Shinetsu Five Mountains Trail 100 mile | 162,60 | ×5 |
| ✓ 2 | 15/9/2019 | 11th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 3 | 15/9/2024 | 16th Shinetsu Five Mountains Trail 110km | 109,00 | ×3 |
| ✓ 4 | 8/12/2019 | 6th Izu Trail Journey | 71,70 | ×2 |
| ✓ 5 | 10/12/2023 | 10th Izu Trail Journey | 70,00 | ×2 |
| ✓ 6 | 28/7/2019 | 7th Mt. Taisetsu Trail Journey | 70,00 | ×2 |
| ✓ 7 | 3/11/2019 | 3rd Koshu Alps Haute Route Challenge | 67,00 | ×2 |
| ✓ 8 | 17/7/2022 | 13th Nozawa Onsen 4100D Mountain Trail Pair | 65,00 | ×2 |
| ✓ 9 | 19/5/2019 | 4th Osorakan-Trail | 65,00 | ×2 |
| ✓ 10 | 15/6/2019 | 2nd Yuzawa Sky Extreme Trail | 55,00 | ×1 |
| ✓ 11 | 8/6/2024 | 4th Okushinano 100 - 50 km | 52,40 | ×1 |
| ✓ 12 | 14/4/2024 | 2nd AYABE Trailrun | 51,40 | ×1 |
| ✓ 13 | 9/4/2023 | 1st AYABE Trailrun | 51,40 | ×1 |
| ✓ 14 | 27/5/2022 | 1st Karuizawa Trail Running Race | 45,00 | ×1 |