Sonoko (土田園子) Tsuchida
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Born : 1961
Cat. W65 Ultrarunner since 2005
15
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
Japan82,0%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 6 986; Σ finishers = 8 520. 6 986 / 8 520 × 100 = 82.00%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 081 km
Longest race100,0 km
6th Echigo Kubikino 100km Ultramarathon — 9/10/2006
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0
Records
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 9/10/2006 | 6th Echigo Kubikino 100km Ultramarathon | 100,00 | ×3 |
| ✓ 2 | 27/8/2006 | 50. Tsurunuma 100 km | 100,00 | ×3 |
| ✓ 3 | 25/6/2006 | 21. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 26/6/2005 | Open Race at IAU 100km WC Yubetsu (20. Lake Saroma 100 km Ultramarathon) | 100,00 | ×3 |
| ✓ 5 | 5/8/2012 | 19. Ultramarathon Okumusashi | 77,00 | ×2 |
| ✓ 6 | 1/8/2010 | 17. Ultramarathon Okumusashi | 77,00 | ×2 |
| ✓ 7 | 5/8/2007 | 14. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 8 | 13/8/2006 | 13. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 9 | 5/7/2009 | 15th 8-Hour Endurance Race Tokorozawa | 64,92 | ×2 |
| ✓ 10 | 4/7/2010 | 16th 8-Hour Endurance Race Tokorozawa - 3 tai | 55,18 | ×1 |
| ✓ 11 | 2/9/2012 | 62. Tsurunuma 52 km | 52,00 | ×1 |
| ✓ 12 | 4/4/2010 | 57. Tsurunuma 52 km | 52,00 | ×1 |
| ✓ 13 | 30/8/2009 | 56. Tsurunuma 52 km | 52,00 | ×1 |
| ✓ 14 | 26/8/2007 | 52. Tsurunuma 52 km | 52,00 | ×1 |
| ✓ 15 | 3/6/2006 | 4th Akiruno 6 Hour Race Japan Cup | 49,16 | ×1 |