Keiji (先山恵司) Sakiyama
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Ultrarunner since 2009
5
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
17
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
Japan45,5%
Rank quotient ?This runner's calculation uses 5 eligible race(s): Σ(rank − 1) = 555; Σ finishers = 1 221. 555 / 1 221 × 100 = 45.45%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed5
Km — ultra races350 km
Longest race70,0 km
11th 70 km Ultra Maranic Osaka — 21/4/2019
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
5 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 21.04 | 70km | 11th 70 km Ultra Maranic Osaka |
9:39:21 h | 151 |
| 2018 | ||||
| 22.04 | 70km | 10th 70 km Ultra Maranic Osaka |
9:47:13 h | 139 |
| 2016 | ||||
| 24.04 | 70km | 8th 70 km Ultra Maranic Osaka |
9:33:27 h | 150 |
| 2015 | ||||
| 26.04 | 70km | 7th 70 km Ultra Maranic Osaka |
8:53:20 h | 95 |
| 2009 | ||||
| 24.05 | 70km | 1st 70 km Ultra Maranic Osaka |
8:11:34 h | 25 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/4/2019 | 11th 70 km Ultra Maranic Osaka | 70,00 | ×4 |
| ✓ 2 | 22/4/2018 | 10th 70 km Ultra Maranic Osaka | 70,00 | ×4 |
| ✓ 3 | 24/4/2016 | 8th 70 km Ultra Maranic Osaka | 70,00 | ×4 |
| ✓ 4 | 26/4/2015 | 7th 70 km Ultra Maranic Osaka | 70,00 | ×4 |
| ✓ 5 | 24/5/2009 | 1st 70 km Ultra Maranic Osaka | 70,00 | ×4 |