Soushi (糸魚川宗志) Itoigawa
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Born : 1995
Cat. M23 Ultrarunner since 2019
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
13
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
Japan4,4%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 49; Σ finishers = 1 103. 49 / 1 103 × 100 = 4.44%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races215 km
Longest race65,0 km
10th Nozawa Onsen 4100D Mountain Trail — 13/7/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 26.04 | 45km | 19th Ishioka Trail Run |
4:21:22 h | 10 |
| 2025 | ||||
| 06.07 | 55km | 2nd Tsurugi Foothills Trail Du Kamiichi |
6:18:38 h | 7 |
| 2019 | ||||
| 13.07 | 65km | 10th Nozawa Onsen 4100D Mountain Trail |
8:34:55 h | 10 |
| 09.06 | 50km | 12th Skyline Trail Sugadaira |
6:40:04 h | 26 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/7/2019 | 10th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×5 |
| ✓ 2 | 6/7/2025 | 2nd Tsurugi Foothills Trail Du Kamiichi | 55,00 | ×4 |
| ✓ 3 | 9/6/2019 | 12th Skyline Trail Sugadaira | 50,00 | ×3 |
| ✓ 4 | 26/4/2026 | 19th Ishioka Trail Run | 45,00 | ×3 |