Ei (中島英) Nakajima
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Born : 1958
Cat. M65 Ultrarunner since 1999
13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
Japan48,2%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 5 156; Σ finishers = 10 699. 5 156 / 10 699 × 100 = 48.19%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 242 km
Longest race100,0 km
10th Nichinan Orochi 100 km Marathon — 27/6/2010
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road91,9%
Trail8,1%
Records
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2015 | ||||
| 27.09 | 88km | 18th Muraoka 88 km Ultra Marathon |
12:21:16 h | 91 |
| 2013 | ||||
| 29.09 | 66km | 16th Muraoka 66 km Ultra Marathon |
9:04:53 h | 153 |
| 2012 | ||||
| 30.09 | 88km | 15th Muraoka 88 km Ultra Marathon |
11:54:28 h | 53 |
| 2010 | ||||
| 27.06 | 100km | 10th Nichinan Orochi 100 km Marathon |
12:38:24 h | 225 |
| 2009 | ||||
| 18.10 | 100km | 15th River Shimanto 100km |
12:36:23 h | 627 |
| 2007 | ||||
| 14.10 | 100km | 13th River Shimanto 100km |
11:53:24 h | 430 |
| 2006 | ||||
| 15.10 | 100km | 12th River Shimanto 100km |
12:31:35 h | 524 |
| 2005 | ||||
| 16.10 | 100km | 11th River Shimanto 100km |
11:36:19 h | 364 |
| 2004 | ||||
| 17.10 | 100km | 10th River Shimanto 100km |
12:52:06 h | 711 |
| 2003 | ||||
| 19.10 | 100km | 9th River Shimanto 100km |
12:22:02 h | 592 |
| 2001 | ||||
| 21.10 | 100km | 8th River Shimanto 100km |
12:42:11 h | 525 |
| 2000 | ||||
| 15.10 | 100km | 7th River Shimanto 100km |
12:40:05 h | 478 |
| 1999 | ||||
| 17.10 | 100km | 6th River Shimanto 100km |
11:51:15 h | 396 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 27/6/2010 | 10th Nichinan Orochi 100 km Marathon | 100,00 | ×3 |
| ✓ 2 | 18/10/2009 | 15th River Shimanto 100km | 100,00 | ×3 |
| ✓ 3 | 14/10/2007 | 13th River Shimanto 100km | 100,00 | ×3 |
| ✓ 4 | 15/10/2006 | 12th River Shimanto 100km | 100,00 | ×3 |
| ✓ 5 | 16/10/2005 | 11th River Shimanto 100km | 100,00 | ×3 |
| ✓ 6 | 17/10/2004 | 10th River Shimanto 100km | 100,00 | ×3 |
| ✓ 7 | 19/10/2003 | 9th River Shimanto 100km | 100,00 | ×3 |
| ✓ 8 | 21/10/2001 | 8th River Shimanto 100km | 100,00 | ×3 |
| ✓ 9 | 15/10/2000 | 7th River Shimanto 100km | 100,00 | ×3 |
| ✓ 10 | 17/10/1999 | 6th River Shimanto 100km | 100,00 | ×3 |
| ✓ 11 | 27/9/2015 | 18th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 12 | 30/9/2012 | 15th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 13 | 29/9/2013 | 16th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |