Mikio (岩瀬幹生) Iwase
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Born : 1955
Cat. M70 Ultrarunner since 2001
8
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
1
Countries visited ?Japan
Japan6,3%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 304; Σ finishers = 4 832. 304 / 4 832 × 100 = 6.29%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races1 603 km
> 100 km3
> 160 km3
> 200 km3
Longest race415,0 km
4th Trans Japan Alps Race (TJAR) — 10/8/2008
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win1
🏆 Win M1
🏅 Top 32
🏅 Top 3 M2
Longest winning streak1
Current streak0
Records
No record for a classic ultra format
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2008 | ||||
| 10.08 | 415km | 4th Trans Japan Alps Race |
7d 14:21:00 h | 8 |
| 2005 | ||||
| 09.10 | 71.5km | 13th Hasetsune Cup - Japan Mountain Endurance Race |
13:07:26 h | 139 |
| 2004 | ||||
| 10.10 | 71.5km | 12th Hasetsune Cup - Japan Mountain Endurance Race |
12:23:11 h | 57 |
| 08.08 | 415km | 2nd Trans Japan Alps Race |
7d 04:48:00 h | 3 🥉 |
| 2003 | ||||
| 25.10 | 71.5km | 11th Hasetsune Cup - Japan Mountain Endurance Race |
11:24:48 h | 52 |
| 2002 | ||||
| 12.10 | 71.5km | 10th Hasetsune Cup - Japan Mountain Endurance Race |
11:20:06 h | 29 |
| 11.08 | 415km | 1st Trans Japan Alps Race |
7d 05:07:00 h | 1 🏆 |
| 2001 | ||||
| 06.10 | 71.5km | 9th Hasetsune Cup - Japan Mountain Endurance Race |
11:07:43 h | 23 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 10/8/2008 | 4th Trans Japan Alps Race (TJAR) | 415,00 | ×11 |
| ✓ 2 | 8/8/2004 | 2nd Trans Japan Alps Race (TJAR) | 415,00 | ×11 |
| ✓ 3 | 11/8/2002 | 1st Trans Japan Alps Race (TJAR) | 415,00 | ×11 |
| ✓ 4 | 9/10/2005 | 13th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×1 |
| ✓ 5 | 10/10/2004 | 12th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×1 |
| ✓ 6 | 25/10/2003 | 11th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×1 |
| ✓ 7 | 12/10/2002 | 10th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×1 |
| ✓ 8 | 6/10/2001 | 9th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×1 |