Youichi (田中陽一) Tanaka
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Born : 1966
Cat. M60 Ultrarunner since 2014
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
Japan54,9%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 7 785; Σ finishers = 14 178. 7 785 / 14 178 × 100 = 54.91%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 311 km
> 100 km1
> 160 km1
Longest race160,9 km
10th Lake Biwa Charity 100mi Walking Tournament — 19/10/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road45,9%
Trail3,7%
Ult.Walk50,4%
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/10/2024 | 10th Lake Biwa Charity 100mi Walking Tournament | 160,93 | ×4 |
| ✓ 2 | 2/5/2026 | 9th Ultra Walking around Lake Biwa | 100,00 | ×3 |
| ✓ 3 | 1/11/2025 | 1st BIWA100 Ultra Walk | 100,00 | ×3 |
| ✓ 4 | 4/5/2025 | 8th Ultra Walking around Lake Biwa | 100,00 | ×3 |
| ✓ 5 | 14/10/2023 | 9th Lake Biwa Charity 100km Walking Tournament | 100,00 | ×3 |
| ✓ 6 | 15/10/2022 | 8th Lake Biwa Charity 100km Walking Tournament | 100,00 | ×3 |
| ✓ 7 | 30/6/2019 | 34. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 8 | 26/6/2016 | 31. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 9 | 28/6/2015 | 30. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 10 | 20/4/2014 | 24th Fuji 5 Lakes 72 km Challenge | 72,00 | ×2 |
| ✓ 11 | 19/5/2019 | 7th Tokyo Shibamata 60 km | 60,00 | ×1 |
| ✓ 12 | 5/6/2016 | 4th Tokyo Shibamata 60 km | 60,00 | ×1 |
| ✓ 13 | 6/6/2015 | 3rd Tokyo Shibamata 60 km | 60,00 | ×1 |
| ✓ 14 | 28/6/2026 | 41. Lake Saroma 50 km Ultramarathon | 50,00 | ×1 |
| ✓ 15 | 27/8/2017 | 4th Tsukuba Renjyo 48 km Road & Trail Run | 48,00 | ×1 |