Shuuichi (鈴木秀一) Suzuki
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Ultrarunner since 2019
7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
23
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
Japan51,3%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 948; Σ finishers = 1 849. 948 / 1 849 × 100 = 51.27%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races601 km
> 100 km3
Longest race125,0 km
9th Fujisan Issyu Walking — 7/6/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road19,5%
Trail9,8%
Ult.Walk70,7%
Records
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 07.06 | 125km | 9th Fujisan Issyu Walking |
25:12:52 h | 119 |
| 2024 | ||||
| 21.12 | 50km | 1st One-day walking - Kanto Chiho |
8:45:01 h | 50 |
| 25.05 | 125km | 8th Fujisan Issyu Walking |
25:59:45 h | 108 |
| 2023 | ||||
| 10.06 | 125km | 7th Fujisan Issyu Walking |
28:43:01 h | 157 |
| 2021 | ||||
| 08.05 | 57km | 1st Kimitsu Ultra Marathon |
7:21:00 h | 140 |
| 2019 | ||||
| 01.06 | 59km | 11th OSJ Okukuji Trail 60k |
12:57:58 h | 249 |
| 12.05 | 60km | 5th Ishigaki Island Ultra Marathon |
8:34:36 h | 132 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 7/6/2025 | 9th Fujisan Issyu Walking | 125,00 | ×5 |
| ✓ 2 | 25/5/2024 | 8th Fujisan Issyu Walking | 125,00 | ×5 |
| ✓ 3 | 10/6/2023 | 7th Fujisan Issyu Walking | 125,00 | ×5 |
| ✓ 4 | 12/5/2019 | 5th Ishigaki Island Ultra Marathon | 60,00 | ×2 |
| ✓ 5 | 1/6/2019 | 11th OSJ Okukuji Trail 60k | 59,00 | ×2 |
| ✓ 6 | 8/5/2021 | 1st Kimitsu Ultra Marathon | 57,00 | ×2 |
| ✓ 7 | 21/12/2024 | 1st One-day walking - Kanto Chiho | 50,00 | ×2 |