Koichi (吉住晃一) Yoshizumi
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Born : 1973
Cat. M50 Ultrarunner since 2008
14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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
Japan6,0%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 292; Σ finishers = 4 893. 292 / 4 893 × 100 = 5.97%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 239 km
Longest race100,0 km
10. Okinoshima 100km Ultra Marathon — 21/6/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road94,4%
Trail5,6%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M2
Longest winning streak0
Current streak0
Records
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2023 | ||||
| 24.09 | 88km | 26th Muraoka 88 km Ultra Marathon |
9:43:50 h | 7 |
| 2017 | ||||
| 24.09 | 88km | 20th Muraoka 88 km Ultra Marathon |
9:31:18 h | 14 |
| 2016 | ||||
| 25.09 | 88km | 19th Muraoka 88 km Ultra Marathon |
8:48:31 h | 7 |
| 2015 | ||||
| 27.09 | 88km | 18th Muraoka 88 km Ultra Marathon |
8:16:12 h | 3 🥉 |
| 21.06 | 100km | 10. Okinoshima 100km Ultra Marathon |
9:24:37 h | 22 |
| 17.05 | 77km | Saba Highway Ultramarathon |
7:42:56 h | 16 |
| 2014 | ||||
| 28.09 | 88km | 17th Muraoka 88 km Ultra Marathon |
8:17:02 h | 5 |
| 29.06 | 100km | 29. Lake Saroma 100 km Ultramarathon |
9:26:09 h | 138 |
| 2013 | ||||
| 29.09 | 88km | 16th Muraoka 88 km Ultra Marathon |
9:02:34 h | 7 |
| 2012 | ||||
| 30.09 | 88km | 15th Muraoka 88 km Ultra Marathon |
8:24:41 h | 4 |
| 2011 | ||||
| 25.09 | 88km | 14th Muraoka 88 km Ultra Marathon |
8:08:22 h | 3 🥉 |
| 2010 | ||||
| 23.05 | 100km | 2nd 100 km Ultra Maranic Osaka |
9:24:00 h | 20 |
| 03.05 | 70km | 18. Mukogawa Yurikamome Ultra Marathon |
6:46:50 h | 54 |
| 2008 | ||||
| 28.09 | 88km | 11th Muraoka 88 km Ultra Marathon |
8:53:02 h | 6 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/6/2015 | 10. Okinoshima 100km Ultra Marathon | 100,00 | ×3 |
| ✓ 2 | 29/6/2014 | 29. Lake Saroma 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 23/5/2010 | 2nd 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 4 | 24/9/2023 | 26th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 5 | 24/9/2017 | 20th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 6 | 25/9/2016 | 19th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 7 | 27/9/2015 | 18th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 8 | 28/9/2014 | 17th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 9 | 29/9/2013 | 16th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 10 | 30/9/2012 | 15th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 11 | 25/9/2011 | 14th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 12 | 28/9/2008 | 11th Muraoka 88 km Ultra Marathon | 88,00 | ×2 |
| ✓ 13 | 17/5/2015 | Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 14 | 3/5/2010 | 18. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |