Daisuke (吉岡大介) Yoshioka
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Born : 1961
Cat. M65 Ultrarunner since 2010
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
20
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
Japan55,4%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 808; Σ finishers = 3 263. 1 808 / 3 263 × 100 = 55.41%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races420 km
Longest race60,0 km
31th River Shimanto 60km — 19/10/2025
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
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 19.10 | 60km | 31th River Shimanto 60km |
10:06:05 h | 408 |
| 2024 | ||||
| 20.10 | 60km | 30th River Shimanto 60km |
9:11:45 h | 416 |
| 2023 | ||||
| 15.10 | 60km | 29th River Shimanto 60km |
9:02:29 h | 354 |
| 2017 | ||||
| 15.10 | 60km | 23rd River Shimanto 60km |
8:07:07 h | 293 |
| 2016 | ||||
| 16.10 | 60km | 22nd River Shimanto 60km |
7:00:29 h | 141 |
| 2012 | ||||
| 21.10 | 60km | 18th River Shimanto 60km |
7:13:12 h | 128 |
| 2010 | ||||
| 17.10 | 60km | 16th River Shimanto 60km |
6:45:53 h | 75 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 19/10/2025 | 31th River Shimanto 60km | 60,00 | ×3 |
| ✓ 2 | 20/10/2024 | 30th River Shimanto 60km | 60,00 | ×3 |
| ✓ 3 | 15/10/2023 | 29th River Shimanto 60km | 60,00 | ×3 |
| ✓ 4 | 15/10/2017 | 23rd River Shimanto 60km | 60,00 | ×3 |
| ✓ 5 | 16/10/2016 | 22nd River Shimanto 60km | 60,00 | ×3 |
| ✓ 6 | 21/10/2012 | 18th River Shimanto 60km | 60,00 | ×3 |
| ✓ 7 | 17/10/2010 | 16th River Shimanto 60km | 60,00 | ×3 |