Michio (長田道夫) Osada
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Born : 1955
Cat. M70 Ultrarunner since 2008
15
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
1
Countries visited ?Japan
Japan72,7%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 7 990; Σ finishers = 10 997. 7 990 / 10 997 × 100 = 72.66%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 462 km
> 100 km2
> 160 km1
> 200 km1
Longest race250,0 km
25. Yamaguchi 100 Hagi-O-Kan Maranic 250 km — 2/5/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road95,1%
Trail4,9%
Records
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 30.06 | 50km | 34. Lake Saroma 50 km Ultramarathon |
7:08:58 h | 307 |
| 2014 | ||||
| 18.05 | 71km | 20th Yatsugatake Nobeyama 71 km |
10:06:16 h | 202 |
| 2013 | ||||
| 16.06 | 100km | 8. Okinoshima 100km Ultra Marathon |
14:19:21 h | 287 |
| 02.05 | 250km | 25. Yamaguchi 100 Hagi-O-Kan Maranic 250 km |
47:06:34 h | 207 |
| 2012 | ||||
| 06.10 | 100km | 9th Echigo Kubikino 100km Ultramarathon |
12:59:08 h | 779 |
| 24.06 | 100km road race | 27. Lake Saroma 100 km Ultramarathon |
12:19:06 h | 1555 |
| 10.06 | 72km | 1st Hida Takayama 72 km Ultramarathon |
9:08:26 h | 82 |
| 2011 | ||||
| 25.09 | 100km | 21. Akita Nairiku 100km Marathon |
12:34:34 h | 424 |
| 26.06 | 100km road race | 26. Lake Saroma 100 km Ultramarathon |
12:42:23 h | 1761 |
| 03.05 | 140km | 23. Yamaguchi 100 Hagi-O-Kan Maranic 140 km |
21:56:54 h | 92 |
| 2010 | ||||
| 26.09 | 100km | 20. Akita Nairiku 100km Marathon |
12:50:05 h | 638 |
| 01.08 | 77km | 17. Ultramarathon Okumusashi |
11:48:13 h | 892 |
| 25.04 | 100km | 20th Fuji 5 Lakes 100 km Challenge |
13:18:18 h | 540 |
| 2009 | ||||
| 30.08 | 52km | 56. Tsurunuma 52 km |
5:54:33 h | 97 |
| 2008 | ||||
| 22.06 | 50km | 23. Lake Saroma 50 km Ultramarathon |
5:47:02 h | 142 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 2/5/2013 | 25. Yamaguchi 100 Hagi-O-Kan Maranic 250 km | 250,00 | ×7 |
| ✓ 2 | 3/5/2011 | 23. Yamaguchi 100 Hagi-O-Kan Maranic 140 km | 140,00 | ×4 |
| ✓ 3 | 16/6/2013 | 8. Okinoshima 100km Ultra Marathon | 100,00 | ×2 |
| ✓ 4 | 6/10/2012 | 9th Echigo Kubikino 100km Ultramarathon | 100,00 | ×2 |
| ✓ 5 | 24/6/2012 | 27. Lake Saroma 100 km Ultramarathon (JPN) | 100,00 | ×2 |
| ✓ 6 | 25/9/2011 | 21. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 7 | 26/6/2011 | 26. Lake Saroma 100 km Ultramarathon (JPN) | 100,00 | ×2 |
| ✓ 8 | 26/9/2010 | 20. Akita Nairiku 100km Marathon | 100,00 | ×2 |
| ✓ 9 | 25/4/2010 | 20th Fuji 5 Lakes 100 km Challenge | 100,00 | ×2 |
| ✓ 10 | 1/8/2010 | 17. Ultramarathon Okumusashi | 77,00 | ×2 |
| ✓ 11 | 10/6/2012 | 1st Hida Takayama 72 km Ultramarathon | 72,00 | ×2 |
| ✓ 12 | 18/5/2014 | 20th Yatsugatake Nobeyama 71 km | 71,00 | ×2 |
| ✓ 13 | 30/8/2009 | 56. Tsurunuma 52 km | 52,00 | ×1 |
| ✓ 14 | 30/6/2019 | 34. Lake Saroma 50 km Ultramarathon | 50,00 | ×1 |
| ✓ 15 | 22/6/2008 | 23. Lake Saroma 50 km Ultramarathon | 50,00 | ×1 |