Yuko (堀内優子) Horiuchi
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 : 1971
Cat. W55 Ultrarunner since 2015
8
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
20
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
Japan85,7%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 1 793; Σ finishers = 2 091. 1 793 / 2 091 × 100 = 85.75%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races466 km
Longest race73,0 km
1st Gasando Trail running race — 17/5/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road73,6%
Trail26,4%
Records
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 06.06 | 63km | 14th Tojinbo 62 km Ultramarathon |
10:44:19 h | 372 |
| 2024 | ||||
| 25.05 | 62km | 12th Tojinbo 62 km Ultramarathon |
9:51:07 h | 221 |
| 2023 | ||||
| 27.05 | 62km | 11th Tojinbo 62 km Ultramarathon |
9:55:12 h | 323 |
| 2022 | ||||
| 28.05 | 52km | 10th Tojinbo 52 km Ultramarathon |
9:26:09 h | 196 |
| 2019 | ||||
| 25.05 | 52km | 8th Tojinbo 52 km Ultramarathon |
9:01:52 h | 123 |
| 2018 | ||||
| 26.05 | 52km | 7th Tojinbo 52 km Ultramarathon |
9:23:46 h | 137 |
| 2015 | ||||
| 17.05 | 73km | 1st Gasando Trail running race |
13:38:45 h | 273 |
| 08.02 | 50km | 6th OSJ Jungle Trail 50K Amami |
7:52:36 h | 156 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/5/2015 | 1st Gasando Trail running race | 73,00 | ×3 |
| ✓ 2 | 6/6/2026 | 14th Tojinbo 62 km Ultramarathon | 63,00 | ×3 |
| ✓ 3 | 25/5/2024 | 12th Tojinbo 62 km Ultramarathon | 62,00 | ×3 |
| ✓ 4 | 27/5/2023 | 11th Tojinbo 62 km Ultramarathon | 62,00 | ×3 |
| ✓ 5 | 28/5/2022 | 10th Tojinbo 52 km Ultramarathon | 52,00 | ×2 |
| ✓ 6 | 25/5/2019 | 8th Tojinbo 52 km Ultramarathon | 52,00 | ×2 |
| ✓ 7 | 26/5/2018 | 7th Tojinbo 52 km Ultramarathon | 52,00 | ×2 |
| ✓ 8 | 8/2/2015 | 6th OSJ Jungle Trail 50K Amami | 50,00 | ×2 |