Naohide (山崎尚英) Yamazaki
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Born : 1947
Cat. M75 Ultrarunner since 2007
14
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
Japan12,6%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 1 634; Σ finishers = 12 996. 1 634 / 12 996 × 100 = 12.57%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 432 km
> 100 km1
> 160 km1
Longest race160,9 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road83,8%
Trail16,2%
Records
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2017 | ||||
| 15.10 | 100km | 23rd River Shimanto 100km |
10:26:42 h | 205 |
| 2014 | ||||
| 19.10 | 100km | 20th River Shimanto 100km |
11:23:50 h | 319 |
| 14.09 | 100km | 14th Tango 100 km Ultramarathon |
10:14:46 h | 142 |
| 08.06 | 100km | 3rd Hida Takayama 100 km Ultramarathon |
11:30:25 h | 260 |
| 2013 | ||||
| 20.10 | 100km | 19th River Shimanto 100km |
8:51:58 h | 39 |
| 07.09 | 100mi | 2nd OSJ Yatsugatake Super Trail 100 miles race |
29:14:16 h | 60 |
| 2012 | ||||
| 23.09 | 100km | 22. Akita Nairiku 100km Marathon |
9:14:05 h | 34 |
| 17.06 | 100km | 7. Okinoshima 100km Ultra Marathon |
10:11:30 h | 27 |
| 2011 | ||||
| 16.10 | 100km | 17th River Shimanto 100km |
9:09:40 h | 46 |
| 19.06 | 100km | 6. Okinoshima 100km Ultra Marathon |
10:09:23 h | 36 |
| 2010 | ||||
| 10.10 | 71.5km | 18th Hasetsune Cup - Japan Mountain Endurance Race |
11:59:21 h | 180 |
| 2009 | ||||
| 14.06 | 100km | 5th Iwate Ginga 100km Marathon Challenge |
8:56:02 h | 21 |
| 2008 | ||||
| 19.10 | 100km | 14th River Shimanto 100km |
11:06:27 h | 217 |
| 2007 | ||||
| 14.10 | 100km | 13th River Shimanto 100km |
9:29:21 h | 62 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 7/9/2013 | 2nd OSJ Yatsugatake Super Trail 100 miles race | 160,93 | ×4 |
| ✓ 2 | 15/10/2017 | 23rd River Shimanto 100km | 100,00 | ×3 |
| ✓ 3 | 19/10/2014 | 20th River Shimanto 100km | 100,00 | ×3 |
| ✓ 4 | 14/9/2014 | 14th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 8/6/2014 | 3rd Hida Takayama 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 6 | 20/10/2013 | 19th River Shimanto 100km | 100,00 | ×3 |
| ✓ 7 | 23/9/2012 | 22. Akita Nairiku 100km Marathon | 100,00 | ×3 |
| ✓ 8 | 17/6/2012 | 7. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 9 | 16/10/2011 | 17th River Shimanto 100km | 100,00 | ×3 |
| ✓ 10 | 19/6/2011 | 6. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 11 | 14/6/2009 | 5th Iwate Ginga 100km Marathon Challenge | 100,00 | ×3 |
| ✓ 12 | 19/10/2008 | 14th River Shimanto 100km | 100,00 | ×3 |
| ✓ 13 | 14/10/2007 | 13th River Shimanto 100km | 100,00 | ×3 |
| ✓ 14 | 10/10/2010 | 18th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |