Takaaki (田中孝昭) Tanaka
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9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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
22,4%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 1 193; Σ finishers = 5 334. 1 193 / 5 334 × 100 = 22.37%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races626 km
Longest race100,0 km
2nd Nikko 100km Ultramarathon — 17/6/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road84,0%
Trail16,0%
Records
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 14.09 | 60km | 6:53:33 h | 106 | |
| 2024 | ||||
| 15.09 | 60km | 7:23:42 h | 114 | |
| 2023 | ||||
| 17.09 | 60km | 7:46:12 h | 96 | |
| 2019 | ||||
| 15.09 | 60km | 6:47:19 h | 100 | |
| 2018 | ||||
| 17.06 | 100km | 13:36:30 h | 659 | |
| 2016 | ||||
| 18.09 | 60km | 5:05:01 h | 32 | |
| 2014 | ||||
| 14.09 | 60km | 4:55:38 h | 25 | |
| 28.06 | 100km | 19:24:37 h | 38 | |
| 2013 | ||||
| 29.09 | 66km | 7:19:39 h | 32 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/6/2018 | 2nd Nikko 100km Ultramarathon | 100,00 | ×4 |
| ✓ 2 | 28/6/2014 | Fukushima-Nasu Long Trail | 100,00 | ×4 |
| ✓ 3 | 29/9/2013 | 16th Muraoka 66 km Ultra Marathon | 66,00 | ×3 |
| ✓ 4 | 14/9/2025 | 23th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 5 | 15/9/2024 | 22th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 6 | 17/9/2023 | 21th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 7 | 15/9/2019 | 19th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 8 | 18/9/2016 | 16th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 9 | 14/9/2014 | 14th Tango 60 km Ultramarathon | 60,00 | ×2 |