Hideki (河井英樹) Kawai
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Born : 1966
Cat. M60 Ultrarunner since 2002
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
14
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
2
Countries visited ?Japan
South Korea
JapanSouth Korea70,9%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 2 205; Σ finishers = 3 111. 2 205 / 3 111 × 100 = 70.88%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races253 km
Longest race71,5 km
10th Hasetsune Cup - Japan Mountain Endurance Race — 12/10/2002
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road22,2%
Trail77,8%
Records
No record for a classic ultra format
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 18.10 | 67km | 12th TransJeju by UTMB - Jeju70K |
13:13:36 h | 1173 |
| 21.06 | 58km | 1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 |
12:57:56 h | 579 |
| 2014 | ||||
| 30.03 | 56km | 10th Mt. Rocco Cannonball Run - 56 km Speed |
8:26:00 h | 115 |
| 2002 | ||||
| 12.10 | 71.5km | 10th Hasetsune Cup - Japan Mountain Endurance Race |
17:45:24 h | 342 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 12/10/2002 | 10th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×5 |
| ✓ 2 | 18/10/2025 | 12th TransJeju by UTMB - Jeju70K | 67,00 | ×4 |
| ✓ 3 | 21/6/2025 | 1st Kaga Spa by UTMB - Kaga Spa Trail Endurance 50 | 58,00 | ×4 |
| ✓ 4 | 30/3/2014 | 10th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×4 |