Ryota (佐藤亮太) Sato
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 : 1990
Cat. M35 Ultrarunner since 2016
16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
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
Japan37,9%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 2 975; Σ finishers = 7 854. 2 975 / 7 854 × 100 = 37.88%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 492 km
> 100 km7
> 160 km4
Longest race167,0 km
11th Ultra-Trail Mt. Fuji (UTMF) — 24/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road10,1%
Trail89,9%
Records
HISTORY
16 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 20.06 | 105km | 2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance100 |
24:30:47 h | 497 |
| 24.04 | 167km | 11th Ultra-Trail Mt. Fuji |
41:44:14 h | 947 |
| 2025 | ||||
| 15.11 | 50km | 11th FunTrails50K Round |
8:54:46 h | 145 |
| 13.09 | 162.2km | 17th Shinetsu Five Mountains Trail 100 mile |
32:38:32 h | 297 |
| 06.07 | 75km | 3rd Mt. Gassan Foot Ultra Marathon |
8:58:09 h | 32 |
| 2024 | ||||
| 16.11 | 100Miles | 10th Sengenyama 100 |
33:07:00 h | 24 |
| 12.10 | 100mi | 10th OSJ Koumi 100 |
33:29:21 h | 99 |
| 2023 | ||||
| 18.11 | 106km | 9th FunTrails100K Round |
25:55:11 h | 198 |
| 17.09 | 110km | 15th Shinetsu Five Mountains Trail 110km |
21:04:00 h | 159 |
| 09.07 | 75km | 1st Mt. Gassan Foot Ultra Marathon |
9:30:37 h | 45 |
| 2022 | ||||
| 11.06 | 50km | 2nd Okushinano 100 - 50 km |
7:45:41 h | 48 |
| 2019 | ||||
| 29.09 | 45km | 7th Trainic world Soto-Chichibu Trail Run 45km |
6:02:45 h | 16 |
| 16.06 | 48.3km | 1st FunTrails Round Minano |
7:57:24 h | 30 |
| 2018 | ||||
| 17.11 | 52km | 4th FunTrails50K Two Lakes&Green line |
7:08:55 h | 34 |
| 07.10 | 71.5km | 26th Hasetsune Cup - Japan Mountain Endurance Race |
12:17:19 h | 115 |
| 2016 | ||||
| 11.09 | 53km | 6th Hakuba Int. Trail Run |
8:22:13 h | 305 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/4/2026 | 11th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×4 |
| ✓ 2 | 13/9/2025 | 17th Shinetsu Five Mountains Trail 100 mile | 162,20 | ×4 |
| ✓ 3 | 16/11/2024 | 10th Sengenyama 100 | 160,93 | ×4 |
| ✓ 4 | 12/10/2024 | 10th OSJ Koumi 100 | 160,93 | ×4 |
| ✓ 5 | 17/9/2023 | 15th Shinetsu Five Mountains Trail 110km | 110,00 | ×3 |
| ✓ 6 | 18/11/2023 | 9th FunTrails100K Round | 106,00 | ×3 |
| ✓ 7 | 20/6/2026 | 2nd Kaga Spa by UTMB - Kaga Spa Trail Endurance100 | 105,00 | ×3 |
| ✓ 8 | 6/7/2025 | 3rd Mt. Gassan Foot Ultra Marathon | 75,00 | ×2 |
| ✓ 9 | 9/7/2023 | 1st Mt. Gassan Foot Ultra Marathon | 75,00 | ×2 |
| ✓ 10 | 7/10/2018 | 26th Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 11 | 11/9/2016 | 6th Hakuba Int. Trail Run | 53,00 | ×1 |
| ✓ 12 | 17/11/2018 | 4th FunTrails50K Two Lakes&Green line | 52,00 | ×1 |
| ✓ 13 | 15/11/2025 | 11th FunTrails50K Round | 50,00 | ×1 |
| ✓ 14 | 11/6/2022 | 2nd Okushinano 100 - 50 km | 50,00 | ×1 |
| ✓ 15 | 16/6/2019 | 1st FunTrails Round Minano | 48,30 | ×1 |
| ✓ 16 | 29/9/2019 | 7th Trainic world Soto-Chichibu Trail Run 45km | 45,00 | ×1 |