Tatsuo (石井龍男) Ishii
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Born : 1951
Cat. M75 Ultrarunner since 1996
12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
34
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
4
Countries visited ?
France
ItalyJapan
Morocco
FranceItalyJapanMorocco20,3%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 2 023; Σ finishers = 9 965. 2 023 / 9 965 × 100 = 20.30%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed22
Km — ultra races1 297 km
> 100 km6
> 160 km2
> 200 km2
Longest race229,0 km
13. Marathon des Sables — 29/3/1998
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail65,4%
Stage34,6%
Records
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2014 | ||||
| 27.08 | 119km | 5ème Sur les Traces des Ducs de Savoie |
24:03:12 h | 202 |
| 2013 | ||||
| 29.08 | 119km | 4ème Sur les Traces des Ducs de Savoie |
24:40:52 h | 228 |
| 02.06 | 50km | 5th OSJ Okukuji Trail 50k |
10:45:05 h | 76 |
| 2012 | ||||
| 31.08 | 103.4km trail race | 10ème Ultra Trail Tour du Mont Blanc (UTMB) |
20:15:40 h | 999 |
| 19.05 | 82km | 1st Shizuoka to Yamanashi |
15:20:55 h | 125 |
| 2011 | ||||
| 25.09 | 50km | 4th OSJ Adatara Trail 50K |
7:47:42 h | 37 |
| 25.08 | 110km | 2ème Sur les Traces des Ducs de Savoie |
23:46:50 h | 183 |
| 2004 | ||||
| 10.10 | 71.5km | 12th Hasetsune Cup - Japan Mountain Endurance Race |
11:50:20 h | 37 |
| 2003 | ||||
| 25.10 | 71.5km | 11th Hasetsune Cup - Japan Mountain Endurance Race |
10:03:24 h | 23 |
| 2002 | ||||
| 12.10 | 71.5km | 10th Hasetsune Cup - Japan Mountain Endurance Race |
11:03:51 h | 23 |
| 1998 | ||||
| 29.03 | 229km/6stages | 13. Marathon des Sables |
29:32:16 h | 78 |
| 1996 | ||||
| 04.04 | 220km/6stages | 11. Marathon des Sables |
29:14:40 h | 24 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 29/3/1998 | 13. Marathon des Sables | 229,00 | ×6 |
| ✓ 2 | 4/4/1996 | 11. Marathon des Sables | 220,00 | ×6 |
| ✓ 3 | 27/8/2014 | 5ème Sur les Traces des Ducs de Savoie (TDS) | 119,00 | ×3 |
| ✓ 4 | 29/8/2013 | 4ème Sur les Traces des Ducs de Savoie (TDS) | 119,00 | ×3 |
| ✓ 5 | 25/8/2011 | 2ème Sur les Traces des Ducs de Savoie (TDS) | 110,00 | ×3 |
| ✓ 6 | 31/8/2012 | 10ème Ultra Trail Tour du Mont Blanc (UTMB) (FRA) | 103,40 | ×3 |
| ✓ 7 | 19/5/2012 | 1st Shizuoka to Yamanashi (STY) | 82,00 | ×2 |
| ✓ 8 | 10/10/2004 | 12th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 9 | 25/10/2003 | 11th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 10 | 12/10/2002 | 10th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 11 | 2/6/2013 | 5th OSJ Okukuji Trail 50k | 50,00 | ×1 |
| ✓ 12 | 25/9/2011 | 4th OSJ Adatara Trail 50K | 50,00 | ×1 |