Mayumi (吉田真由美) Yoshida
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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.
32
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
65,1%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 6 483; Σ finishers = 9 954. 6 483 / 9 954 × 100 = 65.13%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 373 km
> 100 km1
Longest race140,0 km
29. Yamaguchi 100 Hagi-O-Kan Maranic 140 km — 3/5/2017
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road92,3%
Trail7,7%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/5/2017 | 29. Yamaguchi 100 Hagi-O-Kan Maranic 140 km | 140,00 | ×4 |
| ✓ 2 | 12/10/2024 | 26th Yukihashi to Beppu 100 km | 100,00 | ×3 |
| ✓ 3 | 16/6/2019 | 14. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 4 | 22/4/2018 | 28th Fuji 5 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 5 | 24/9/2017 | 20th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 25/9/2016 | 19th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 27/9/2015 | 18th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 8 | 16/7/2023 | 3rd Yamaguchi Hagi Return | 65,00 | ×2 |
| ✓ 9 | 17/7/2022 | 2nd Yamaguchi Hagi Return | 65,00 | ×2 |
| ✓ 10 | 18/7/2021 | 1st Yamaguchi Hagi Return | 65,00 | ×2 |
| ✓ 11 | 28/9/2025 | 28th Muraoka 64 km Ultra Marathon | 64,00 | ×2 |
| ✓ 12 | 29/9/2024 | 27th Muraoka 64 km Ultra Marathon | 64,00 | ×2 |
| ✓ 13 | 20/10/2019 | 3rd Kohechi Trail Journey | 57,80 | ×1 |
| ✓ 14 | 29/3/2015 | 12th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×1 |
| ✓ 15 | 11/9/2016 | 1st Koyasan and Ryujin-Onsen 50 km Ultra Marathon | 50,00 | ×1 |
| ✓ 16 | 4/11/2023 | 5th Ninja Trail Run | 48,00 | ×1 |
| ✓ 17 | 29/9/2022 | 25th Muraoka 45 km Ultra Marathon | 45,00 | ×1 |