Sei (武部整) Takebe
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18
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
74,2%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 5 453; Σ finishers = 7 345. 5 453 / 7 345 × 100 = 74.24%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 200 km
Longest race70,0 km
17th 70 km Ultra Maranic Osaka — 19/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
No record for a classic ultra format
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/4/2026 | 17th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 2 | 20/4/2025 | 16th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 3 | 21/4/2024 | 15th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 4 | 23/4/2023 | 14th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 5 | 17/4/2022 | 13th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 6 | 21/4/2019 | 11th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 7 | 22/4/2018 | 10th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 8 | 23/4/2017 | 9th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 9 | 24/4/2016 | 8th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 10 | 26/4/2015 | 7th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 11 | 29/3/2015 | 1st Osaka Yodogawa 70 km Ultra Marathon | 70,00 | ×2 |
| ✓ 12 | 27/4/2014 | 6th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 13 | 15/9/2024 | 22th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 14 | 18/9/2022 | 20th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 15 | 15/9/2019 | 19th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 16 | 16/9/2018 | 18th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 17 | 14/9/2014 | 14th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 18 | 15/9/2013 | 13th Tango 60 km Ultramarathon | 60,00 | ×2 |