Masayuki (三代真之) Sandai
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Born : 1982
Cat. M40 Ultrarunner since 2016
14
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
Japan33,8%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 6 224; Σ finishers = 18 418. 6 224 / 18 418 × 100 = 33.79%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 299 km
> 100 km4
Longest race118,0 km
1st Fuji 5 Lakes 118 km Autumn Challenge — 7/10/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
14 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 7/10/2019 | 1st Fuji 5 Lakes 118 km Autumn Challenge | 118,00 | ×3 |
| ✓ 2 | 21/4/2019 | 29th Fuji 5 Lakes 118 km Challenge | 118,00 | ×3 |
| ✓ 3 | 22/4/2018 | 28th Fuji 5 Lakes 118 km Challenge | 118,00 | ×3 |
| ✓ 4 | 23/4/2017 | 27th Fuji 5 Lakes 118 km Challenge | 118,00 | ×3 |
| ✓ 5 | 30/6/2019 | 34. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 6 | 24/6/2018 | 33. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 7 | 25/6/2017 | 32. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 8 | 26/6/2016 | 31. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 9 | 2/6/2019 | 26. Ultramarathon Okumusashi | 78,00 | ×2 |
| ✓ 10 | 4/6/2017 | 24. Ultramarathon Okumusashi | 78,00 | ×2 |
| ✓ 11 | 5/6/2016 | 23. Ultramarathon Okumusashi | 78,00 | ×2 |
| ✓ 12 | 24/4/2016 | 26th Fuji 5 Lakes 71 km Challenge | 71,00 | ×2 |
| ✓ 13 | 17/4/2022 | 32th Fuji 5 Lakes 62 km Challenge | 62,00 | ×1 |
| ✓ 14 | 3/6/2018 | 6th Tokyo Shibamata 60 km | 60,00 | ×1 |