Toshiya (傍島稔也) Sobajima
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Born : 1987
Cat. M35 Ultrarunner since 2023
15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
Japan15,8%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 1 056; Σ finishers = 6 688. 1 056 / 6 688 × 100 = 15.79%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 267 km
> 100 km4
> 160 km1
Longest race200,0 km
16th Little Edo Oedo 200k — 14/3/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road63,8%
Trail36,2%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
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 | 14/3/2026 | 16th Little Edo Oedo 200k | 200,00 | ×6 |
| ✓ 2 | 9/3/2024 | 14th Oedo Night run 115k | 115,00 | ×3 |
| ✓ 3 | 18/5/2024 | 9th Trainic World 100 km in Sai-No-Kuni | 109,20 | ×3 |
| ✓ 4 | 23/8/2024 | 11th World Cultural Heritage "Fuji" Foot Race | 101,00 | ×3 |
| ✓ 5 | 21/4/2024 | 34th Fuji 4 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 6 | 4/6/2023 | 30. Ultramarathon Okumusashi | 78,00 | ×2 |
| ✓ 7 | 15/10/2023 | 1st Mina no Tenku Ultra Marathon | 75,00 | ×2 |
| ✓ 8 | 13/10/2024 | 32th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 9 | 19/10/2025 | 32. Ultramarathon Okumusashi | 70,00 | ×2 |
| ✓ 10 | 20/10/2024 | 31. Ultramarathon Okumusashi | 70,00 | ×2 |
| ✓ 11 | 17/12/2023 | 1st Coast to Coast Boso hanto | 70,00 | ×2 |
| ✓ 12 | 10/9/2023 | 1st Around Toki River | 54,00 | ×1 |
| ✓ 13 | 1/10/2023 | 10th Trainic world Soto-Chichibu Trail Run 50km | 52,00 | ×1 |
| ✓ 14 | 3/12/2023 | 11th Trainic world Ogose-Tokigawa Trail Run 50km | 51,40 | ×1 |
| ✓ 15 | 1/12/2024 | 11th Trainic world Soto-Chichibu Trail Run 50km | 50,00 | ×1 |