Takeshi (川島建司) Kawashima
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.
14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
14,7%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 691; Σ finishers = 4 695. 691 / 4 695 × 100 = 14.72%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races1 388 km
Longest race100,0 km
31th Ebisu-Daikoku 100 km Marathon — 25/5/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 25.05 | 100km | 10:27:31 h | 81 | |
| 2024 | ||||
| 08.12 | 100km | 11:07:58 h | 41 | |
| 26.05 | 100km | 11:52:53 h | 79 | |
| 2023 | ||||
| 10.12 | 100km | 12:03:31 h | 58 | |
| 24.09 | 100km | 10:57:04 h | 37 | |
| 2022 | ||||
| 11.12 | 100km | 12:15:45 h | 63 | |
| 23.05 | 100km | 11:49:48 h | 67 | |
| 2019 | ||||
| 12.05 | 100km | 11:12:43 h | 107 | |
| 2018 | ||||
| 27.05 | 100km | 11:31:47 h | 67 | |
| 2017 | ||||
| 01.10 | 100km | 12:19:22 h | 27 | |
| 2015 | ||||
| 20.09 | 88km | 7:51:44 h | 8 | |
| 2014 | ||||
| 25.05 | 100km | 9:03:33 h | 9 | |
| 2013 | ||||
| 26.05 | 100km | 10:13:01 h | 45 | |
| 2012 | ||||
| 27.05 | 100km | 9:26:02 h | 16 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/5/2025 | 31th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 2 | 8/12/2024 | 5th Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 3 | 26/5/2024 | 30th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 4 | 10/12/2023 | 4th Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 5 | 24/9/2023 | 26th Muraoka 100 km Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 11/12/2022 | 3rd Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 23/5/2022 | 28th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 8 | 12/5/2019 | 26th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 9 | 27/5/2018 | 25th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 10 | 1/10/2017 | 1st Yasaka Ultra Marathon in Hamada - 100 km | 100,00 | ×3 |
| ✓ 11 | 25/5/2014 | 21st Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 12 | 26/5/2013 | 20th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 13 | 27/5/2012 | 19th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 14 | 20/9/2015 | 6th Akiota Yajirushi Marathon 88km | 88,00 | ×2 |