Michihiro (清水教弘) Shimizu
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15
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
74,8%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 8 221; Σ finishers = 10 992. 8 221 / 10 992 × 100 = 74.79%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 356 km
> 100 km3
Longest race112,7 km
17th Shinetsu Five Mountains Trail 110km — 14/9/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road61,9%
Trail38,1%
Records
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 31.05 | 100km | 13:55:00 h | 1671 | |
| 14.03 | 90km | 13:12:50 h | 53 | |
| 2025 | ||||
| 14.12 | 70km | 13:01:56 h | 662 | |
| 14.09 | 112.7km | 21:21:53 h | 216 | |
| 18.05 | 100km | 13:45:22 h | 967 | |
| 2024 | ||||
| 22.12 | 67km | 12:03:55 h | 353 | |
| 15.09 | 109km | 16:58:27 h | 221 | |
| 12.05 | 51km | 9:44:15 h | 337 | |
| 2023 | ||||
| 17.12 | 100km | 13:53:55 h | 518 | |
| 16.04 | 100km | 13:32:11 h | 886 | |
| 2022 | ||||
| 16.07 | 106.5km | 17:02:52 h | 467 | |
| 12.06 | 100km | 13:36:59 h | 622 | |
| 2019 | ||||
| 20.10 | 100km | 13:35:07 h | 956 | |
| 11.05 | 50km | 6:21:20 h | 44 | |
| 2018 | ||||
| 16.12 | 100km | 13:32:07 h | 263 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/9/2025 | 17th Shinetsu Five Mountains Trail 110km | 112,70 | ×3 |
| ✓ 2 | 15/9/2024 | 16th Shinetsu Five Mountains Trail 110km | 109,00 | ×3 |
| ✓ 3 | 16/7/2022 | 14th OSJ Ontake 100km Ultra Trail | 106,50 | ×3 |
| ✓ 4 | 31/5/2026 | 1st Nara Ultra Marathon | 100,00 | ×3 |
| ✓ 5 | 18/5/2025 | 31th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 6 | 17/12/2023 | 6th Okinawa 100km Ultramarathon | 100,00 | ×3 |
| ✓ 7 | 16/4/2023 | 33th Fuji 4 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 8 | 12/6/2022 | 16th Iwate Ginga 100km Marathon Challenge | 100,00 | ×3 |
| ✓ 9 | 20/10/2019 | 25th River Shimanto 100km | 100,00 | ×3 |
| ✓ 10 | 16/12/2018 | 3rd Okinawa 100km Ultramarathon | 100,00 | ×3 |
| ✓ 11 | 14/3/2026 | 16th Little Edo 90k | 90,00 | ×2 |
| ✓ 12 | 14/12/2025 | 12th Izu Trail Journey | 70,00 | ×2 |
| ✓ 13 | 22/12/2024 | 2nd Coast to Coast Boso hanto | 67,00 | ×2 |
| ✓ 14 | 12/5/2024 | 5th FunTrails Round Minano | 51,00 | ×1 |
| ✓ 15 | 11/5/2019 | 1st Izu Oshima Geopark Ultra Marathon | 50,00 | ×1 |