Takahiro (石田高広) Ishida
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Born : 1977
Cat. M45 Ultrarunner since 2004
16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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
3
Countries visited ?
GreeceJapan
South Korea
GreeceJapanSouth Korea31,1%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 2 279; Σ finishers = 7 324. 2 279 / 7 324 × 100 = 31.12%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 658 km
> 100 km5
> 160 km1
> 200 km1
Longest race245,3 km
25. Spartathlon — 28/9/2007
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road44,5%
Trail55,5%
Records
HISTORY
16 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2018 | ||||
| 16.12 | 68km | Coast to Coast 70k Trail Run |
7:34:50 h | 21 |
| 2015 | ||||
| 31.10 | 100km | 1st Busan 100k Ultra Trail Race |
14:56:03 h | 4 |
| 2014 | ||||
| 05.07 | 80km | 4th Utsukushigahara 80 km Trail Run |
12:03:07 h | 41 |
| 2012 | ||||
| 18.05 | 156km | 1st Ultra-Trail Mount Fuji |
42:22:28 h | 362 |
| 22.04 | 112km | 22nd Fuji 5 Lakes 112 km Challenge |
11:33:49 h | 72 |
| 2011 | ||||
| 30.04 | 112km | 21st Fuji 5 Lakes 112 km Challenge |
10:26:53 h | 21 |
| 2010 | ||||
| 25.04 | 112km | 20th Fuji 5 Lakes 112 km Challenge |
10:48:07 h | 32 |
| 04.04 | 52km | 57. Tsurunuma 52 km |
4:16:47 h | 11 |
| 2009 | ||||
| 17.05 | 71km | 15th Yatsugatake Nobeyama 71 km |
10:10:37 h | 201 |
| 2008 | ||||
| 20.07 | 100km | 1st OSJ Ontake 100km Ultra Trail |
11:55:08 h | 30 |
| 18.05 | 100km | 14th Yatsugatake Nobeyama 100 km |
9:41:26 h | 20 |
| 2007 | ||||
| 28.09 | 245.3km | 25. Spartathlon |
35:07:40 h | 83 |
| 05.08 | 75km | 14. Ultramarathon Okumusashi |
7:22:40 h | 71 |
| 28.04 | 100km | 17th Fuji 5 Lakes 100 km Challenge |
9:31:32 h | 29 |
| 2006 | ||||
| 13.08 | 75km | 13. Ultramarathon Okumusashi |
8:50:42 h | 209 |
| 2004 | ||||
| 17.10 | 100km | 10th River Shimanto 100km |
13:49:50 h | 1088 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 28/9/2007 | 25. Spartathlon | 245,30 | ×6 |
| ✓ 2 | 18/5/2012 | 1st Ultra-Trail Mount Fuji (UTMF) | 156,00 | ×4 |
| ✓ 3 | 22/4/2012 | 22nd Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 4 | 30/4/2011 | 21st Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 5 | 25/4/2010 | 20th Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 6 | 31/10/2015 | 1st Busan 100k Ultra Trail Race | 100,00 | ×2 |
| ✓ 7 | 20/7/2008 | 1st OSJ Ontake 100km Ultra Trail | 100,00 | ×2 |
| ✓ 8 | 18/5/2008 | 14th Yatsugatake Nobeyama 100 km | 100,00 | ×2 |
| ✓ 9 | 28/4/2007 | 17th Fuji 5 Lakes 100 km Challenge | 100,00 | ×2 |
| ✓ 10 | 17/10/2004 | 10th River Shimanto 100km | 100,00 | ×2 |
| ✓ 11 | 5/7/2014 | 4th Utsukushigahara 80 km Trail Run | 80,00 | ×2 |
| ✓ 12 | 5/8/2007 | 14. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 13 | 13/8/2006 | 13. Ultramarathon Okumusashi | 75,00 | ×2 |
| ✓ 14 | 17/5/2009 | 15th Yatsugatake Nobeyama 71 km | 71,00 | ×1 |
| ✓ 15 | 16/12/2018 | Coast to Coast 70k Trail Run | 68,00 | ×1 |
| ✓ 16 | 4/4/2010 | 57. Tsurunuma 52 km | 52,00 | ×1 |