Eiichirou (牛木英一郎) Ushiki
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Born : 1972
Cat. M50 Ultrarunner since 2007
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
Japan27,7%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 1 716; Σ finishers = 6 189. 1 716 / 6 189 × 100 = 27.73%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races654 km
> 100 km2
Longest race110,0 km
15th Shinetsu Five Mountains Trail 110km — 17/9/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road30,6%
Trail69,4%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 13.10 | 100km | 15th Echigo Kubikino 100km Ultramarathon |
9:41:03 h | 45 |
| 08.06 | 100.8km | 4th Okushinano 100 |
15:07:26 h | 98 |
| 2023 | ||||
| 17.09 | 110km | 15th Shinetsu Five Mountains Trail 110km |
21:07:15 h | 162 |
| 2022 | ||||
| 09.10 | 100km | 14th Echigo Kubikino 100km Ultramarathon |
10:30:08 h | 107 |
| 2009 | ||||
| 21.09 | 100km | 1st Shinetsu Five Mountains Trail 100km |
20:22:45 h | 289 |
| 2008 | ||||
| 12.10 | 71.5km | 16th Hasetsune Cup - Japan Mountain Endurance Race |
13:36:16 h | 416 |
| 2007 | ||||
| 14.10 | 71.5km | 15th Hasetsune Cup - Japan Mountain Endurance Race |
15:43:12 h | 606 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/9/2023 | 15th Shinetsu Five Mountains Trail 110km | 110,00 | ×4 |
| ✓ 2 | 8/6/2024 | 4th Okushinano 100 | 100,80 | ×4 |
| ✓ 3 | 13/10/2024 | 15th Echigo Kubikino 100km Ultramarathon | 100,00 | ×4 |
| ✓ 4 | 9/10/2022 | 14th Echigo Kubikino 100km Ultramarathon | 100,00 | ×4 |
| ✓ 5 | 21/9/2009 | 1st Shinetsu Five Mountains Trail 100km | 100,00 | ×4 |
| ✓ 6 | 12/10/2008 | 16th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 7 | 14/10/2007 | 15th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |