Yoko (中村陽子) Nakamura
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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.
30
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
57,3%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 2 685; Σ finishers = 4 684. 2 685 / 4 684 × 100 = 57.32%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 176 km
> 100 km1
Longest race115,0 km
14th Oedo Night run 115k — 9/3/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road70,2%
Trail29,8%
Records
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/3/2024 | 14th Oedo Night run 115k | 115,00 | ×3 |
| ✓ 2 | 27/2/2021 | 11th Little Edo 91k | 91,00 | ×3 |
| ✓ 3 | 14/3/2026 | 16th Little Edo 90k | 90,00 | ×3 |
| ✓ 4 | 11/3/2023 | 13th Little Edo 90k | 90,00 | ×3 |
| ✓ 5 | 4/6/2023 | 30. Ultramarathon Okumusashi | 78,00 | ×2 |
| ✓ 6 | 25/8/2024 | 11th Tsukuba Renjyo 70 km Road & Trail Run | 75,00 | ×2 |
| ✓ 7 | 24/6/2018 | 5. Spatrail - Shima to Kusatsu | 72,70 | ×2 |
| ✓ 8 | 19/10/2025 | 32. Ultramarathon Okumusashi | 70,00 | ×2 |
| ✓ 9 | 4/7/2021 | 27th 8-Hour Endurance Race Tokorozawa | 63,70 | ×2 |
| ✓ 10 | 22/8/2020 | 1st Toda Aya Lake Ultra Marathon | 63,70 | ×2 |
| ✓ 11 | 3/7/2022 | 28th 8-Hour Endurance Race Tokorozawa | 58,80 | ×1 |
| ✓ 12 | 1/7/2023 | 29th 8-Hour Endurance Race Tokorozawa | 53,90 | ×1 |
| ✓ 13 | 17/11/2018 | 4th FunTrails50K Two Lakes&Green line | 52,00 | ×1 |
| ✓ 14 | 19/11/2016 | 2nd FunTrails50K Two Lakes&Green line | 52,00 | ×1 |
| ✓ 15 | 2/9/2012 | 62. Tsurunuma 52 km | 52,00 | ×1 |
| ✓ 16 | 21/9/2025 | 12th Tsukuba Renjyo 50 km Road & Trail Run | 50,00 | ×1 |
| ✓ 17 | 16/6/2019 | 1st FunTrails Round Minano | 48,30 | ×1 |