Tsubasa (古山翼) Furuyama
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Born : 1983
Cat. M40 Ultrarunner since 2013
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
Japan71,3%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 5 324; Σ finishers = 7 463. 5 324 / 7 463 × 100 = 71.34%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races812 km
> 100 km1
Longest race102,0 km
5th Okuizumo Ultra Orochi 100km Tooashi — 13/4/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2022 | ||||
| 23.05 | 100km | 28th Ebisu-Daikoku 100 km Marathon |
13:13:22 h | 144 |
| 2019 | ||||
| 29.09 | 100km | 3rd Yasaka Ultra Marathon in Hamada - 100 km |
14:37:59 h | 81 |
| 16.06 | 100km | 14. Okinoshima 100km Ultra Marathon |
12:34:59 h | 201 |
| 12.05 | 100km | 26th Ebisu-Daikoku 100 km Marathon |
13:18:03 h | 293 |
| 13.04 | 102km | 5th Okuizumo Ultra Orochi 100km Tooashi |
13:29:59 h | 223 |
| 2015 | ||||
| 28.06 | 100km | 30. Lake Saroma 100 km Ultramarathon |
12:49:25 h | 2425 |
| 07.06 | 55km | 15th Rishiri Island Ultra Marathon |
6:28:12 h | 204 |
| 2014 | ||||
| 01.06 | 55km | 14th Rishiri Island Ultra Marathon |
6:02:23 h | 114 |
| 2013 | ||||
| 30.06 | 100km road race | 28. Lake Saroma 100 km Ultramarathon |
12:37:46 h | 1648 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/4/2019 | 5th Okuizumo Ultra Orochi 100km Tooashi | 102,00 | ×4 |
| ✓ 2 | 23/5/2022 | 28th Ebisu-Daikoku 100 km Marathon | 100,00 | ×4 |
| ✓ 3 | 29/9/2019 | 3rd Yasaka Ultra Marathon in Hamada - 100 km | 100,00 | ×4 |
| ✓ 4 | 16/6/2019 | 14. Okinoshima 100km Ultra Marathon | 100,00 | ×4 |
| ✓ 5 | 12/5/2019 | 26th Ebisu-Daikoku 100 km Marathon | 100,00 | ×4 |
| ✓ 6 | 28/6/2015 | 30. Lake Saroma 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 7 | 30/6/2013 | 28. Lake Saroma 100 km Ultramarathon (JPN) | 100,00 | ×4 |
| ✓ 8 | 7/6/2015 | 15th Rishiri Island Ultra Marathon | 55,00 | ×2 |
| ✓ 9 | 1/6/2014 | 14th Rishiri Island Ultra Marathon | 55,00 | ×2 |