Masaomi (松田正臣) Matsuda
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17
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
5
Countries visited ?
Italy
Japan
South Korea
Mexico
Thailand
37,3%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 3 958; Σ finishers = 10 612. 3 958 / 10 612 × 100 = 37.30%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 325 km
> 100 km4
Longest race110,0 km
5th Shinetsu Five Mountains Trail 110km — 15/9/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 15/9/2013 | 5th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 2 | 18/10/2025 | 12th TransJeju by UTMB - Jeju100K | 107,00 | ×3 |
| ✓ 3 | 6/6/2026 | 6th Okushinano 100 | 100,80 | ×3 |
| ✓ 4 | 10/6/2023 | 3rd Okushinano 100 | 100,80 | ×3 |
| ✓ 5 | 7/12/2024 | 1st Chiangmai Thailand by UTMB - ELEPHANT 100 | 93,00 | ×2 |
| ✓ 6 | 8/11/2025 | Puglia by UTMB - Le Maioliche di Laterza | 85,00 | ×2 |
| ✓ 7 | 26/4/2013 | 2nd Shizuoka to Yamanashi (STY) | 84,00 | ×2 |
| ✓ 8 | 19/5/2012 | 1st Shizuoka to Yamanashi (STY) | 82,00 | ×2 |
| ✓ 9 | 3/3/2013 | 7th Ultra Caballo Blanco Copper Canyon Ultra | 80,47 | ×2 |
| ✓ 10 | 12/10/2014 | 22nd Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 11 | 22/4/2023 | 2nd KAI 69k | 69,00 | ×2 |
| ✓ 12 | 17/7/2022 | 13th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×2 |
| ✓ 13 | 20/7/2014 | 5th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×2 |
| ✓ 14 | 30/8/2014 | 1st Shigakogen Extreme Trail | 63,00 | ×1 |
| ✓ 15 | 4/10/2015 | 9th Madarao Forest Trails 50km | 50,00 | ×1 |
| ✓ 16 | 5/10/2014 | 8th Madarao Forest Trails 50km | 50,00 | ×1 |
| ✓ 17 | 6/12/2025 | 2nd Chiangmai Thailand by UTMB - HMONG 50-NIGHT | 48,00 | ×1 |