Nobuo (由井伸雄) Yui
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Born : 1974
Cat. M50 Ultrarunner since 2012
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
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
Japan43,3%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 5 172; Σ finishers = 11 933. 5 172 / 11 933 × 100 = 43.34%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 575 km
> 100 km2
> 160 km1
Longest race160,9 km
3rd Ultra-Trail Mt. Fuji (UTMF) — 25/4/2014
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road25,4%
Trail74,6%
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/4/2014 | 3rd Ultra-Trail Mt. Fuji (UTMF) | 160,93 | ×4 |
| ✓ 2 | 15/9/2013 | 5th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 3 | 10/3/2024 | 6th Ibaraki 100k Ultra Marathon | 100,00 | ×2 |
| ✓ 4 | 12/3/2023 | 5th Ibaraki 100k Ultra Marathon | 100,00 | ×2 |
| ✓ 5 | 18/12/2022 | 5th Okinawa 100km Ultramarathon | 100,00 | ×2 |
| ✓ 6 | 24/3/2019 | 1st Ibaraki 100k Ultra Marathon | 100,00 | ×2 |
| ✓ 7 | 15/7/2017 | 10th OSJ Ontake 100km Ultra Trail | 100,00 | ×2 |
| ✓ 8 | 22/5/2016 | 22nd Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 9 | 19/5/2013 | 19th Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 10 | 20/5/2012 | 18th Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 11 | 24/6/2018 | 5. Spatrail - Shima to Kusatsu | 72,70 | ×2 |
| ✓ 12 | 15/3/2015 | 2nd Izu Trail Journey | 72,00 | ×2 |
| ✓ 13 | 7/10/2018 | 26th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 14 | 30/8/2015 | 2nd Tsukuba Renjyo 70 km Road & Trail Run | 70,00 | ×2 |
| ✓ 15 | 31/8/2014 | 1st Tsukuba Renjyo 70 km Road & Trail Run | 70,00 | ×2 |
| ✓ 16 | 27/5/2017 | 9th OSJ Okukuji Trail 50k | 50,00 | ×1 |
| ✓ 17 | 30/5/2015 | 7th OSJ Okukuji Trail 50k | 50,00 | ×1 |
| ✓ 18 | 27/8/2023 | 10th Tsukuba Renjyo 48 km Road & Trail Run | 48,00 | ×1 |