Yuji (丸山雄二) Maruyama
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.
Born : 1959
Cat. M65 Ultrarunner since 2011
11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
Japan84,5%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 4 797; Σ finishers = 5 679. 4 797 / 5 679 × 100 = 84.47%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races955 km
Longest race100,0 km
6th Tobishima Ultra Marathon — 14/12/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
11 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 14.12 | 100km | 6th Tobishima Ultra Marathon |
15:52:32 h | 381 |
| 2024 | ||||
| 08.12 | 100km | 5th Tobishima Ultra Marathon |
15:56:39 h | 419 |
| 2021 | ||||
| 18.07 | 65km | 1st Yamaguchi Hagi Return |
13:43:44 h | 422 |
| 2019 | ||||
| 08.12 | 100km | 2nd Tobishima Ultra Marathon |
15:36:40 h | 326 |
| 29.09 | 100km | 3rd Yasaka Ultra Marathon in Hamada - 100 km |
15:51:20 h | 137 |
| 09.06 | 50km | 3rd Koyasan and Ryujin-Onsen 50 km Ultra Marathon |
7:10:36 h | 401 |
| 2018 | ||||
| 09.12 | 100km | 1st Tobishima Ultra Marathon |
15:35:37 h | 196 |
| 2016 | ||||
| 16.10 | 100km | 22nd River Shimanto 100km |
13:45:58 h | 1186 |
| 04.05 | 70km | 28. Yamaguchi 100 Hagi-O-Kan Maranic 70 km |
10:33:06 h | 190 |
| 2011 | ||||
| 16.10 | 100km | 17th River Shimanto 100km |
13:43:30 h | 908 |
| 04.05 | 70km | 23. Yamaguchi 100 Hagi-O-Kan Maranic 70 km |
11:21:30 h | 242 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/12/2025 | 6th Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 2 | 8/12/2024 | 5th Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 3 | 8/12/2019 | 2nd Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 4 | 29/9/2019 | 3rd Yasaka Ultra Marathon in Hamada - 100 km | 100,00 | ×3 |
| ✓ 5 | 9/12/2018 | 1st Tobishima Ultra Marathon | 100,00 | ×3 |
| ✓ 6 | 16/10/2016 | 22nd River Shimanto 100km | 100,00 | ×3 |
| ✓ 7 | 16/10/2011 | 17th River Shimanto 100km | 100,00 | ×3 |
| ✓ 8 | 4/5/2016 | 28. Yamaguchi 100 Hagi-O-Kan Maranic 70 km | 70,00 | ×2 |
| ✓ 9 | 4/5/2011 | 23. Yamaguchi 100 Hagi-O-Kan Maranic 70 km | 70,00 | ×2 |
| ✓ 10 | 18/7/2021 | 1st Yamaguchi Hagi Return | 65,00 | ×2 |
| ✓ 11 | 9/6/2019 | 3rd Koyasan and Ryujin-Onsen 50 km Ultra Marathon | 50,00 | ×1 |