Daijiro (岩渕大治郎) Iwabuchi
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
29
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
20,9%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 904; Σ finishers = 4 331. 904 / 4 331 × 100 = 20.87%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races1 060 km
> 100 km8
Longest race118,0 km
29th Fuji 5 Lakes 118 km Challenge — 21/4/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road95,3%
Trail4,7%
Records
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 21.04 | 118km | 13:09:29 h | 123 | |
| 2018 | ||||
| 30.09 | 100km | 10:29:21 h | 8 | |
| 2017 | ||||
| 23.04 | 118km | 12:44:44 h | 103 | |
| 2016 | ||||
| 24.04 | 118km | 13:02:40 h | 178 | |
| 2014 | ||||
| 20.04 | 108km | 11:13:08 h | 75 | |
| 2012 | ||||
| 22.04 | 112km | 11:02:06 h | 48 | |
| 2011 | ||||
| 30.04 | 112km | 11:57:50 h | 91 | |
| 2010 | ||||
| 25.04 | 112km | 12:21:21 h | 89 | |
| 2009 | ||||
| 26.04 | 112km | 13:04:13 h | 102 | |
| 2008 | ||||
| 05.10 | 50km | 6:39:57 h | 97 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/4/2019 | 29th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 2 | 23/4/2017 | 27th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 3 | 24/4/2016 | 26th Fuji 5 Lakes 118 km Challenge | 118,00 | ×4 |
| ✓ 4 | 22/4/2012 | 22nd Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 5 | 30/4/2011 | 21st Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 6 | 25/4/2010 | 20th Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 7 | 26/4/2009 | 19th Fuji 5 Lakes 112 km Challenge | 112,00 | ×3 |
| ✓ 8 | 20/4/2014 | 24th Fuji 5 Lakes 108 km Challenge | 108,00 | ×3 |
| ✓ 9 | 30/9/2018 | 5th Naeba-Sanroku Geopark Tsunan Ultramarathon 100K | 100,00 | ×3 |
| ✓ 10 | 5/10/2008 | 2nd Madarao Forest Trails 50km | 50,00 | ×1 |