John Breznicky
External sources
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Born : 1986
Cat. M40 Ultrarunner since 2019
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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 ?United States
United States24,2%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 763; Σ finishers = 3 155. 763 / 3 155 × 100 = 24.18%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races621 km
Longest race100,0 km
7th Black Canyon Trail 100 km Run — 15/2/2020
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
9 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 15/2/2020 | 7th Black Canyon Trail 100 km Run | 100,00 | ×4 |
| ✓ 2 | 17/8/2019 | 5th Twisted Branch Trail Run | 100,00 | ×4 |
| ✓ 3 | 11/7/2026 | 19th Leadville Silver Rush 50 Mile Run | 80,47 | ×3 |
| ✓ 4 | 6/7/2019 | 12th Leadville Silver Rush 50 Mile Run | 80,47 | ×3 |
| ✓ 5 | 13/2/2021 | 8th Black Canyon Trail 60 km Run | 60,00 | ×2 |
| ✓ 6 | 26/4/2025 | 12th The Canyons Endurance 50 km Run | 50,00 | ×2 |
| ✓ 7 | 4/1/2020 | 12th Watchung Winter 50 km Run | 50,00 | ×2 |
| ✓ 8 | 4/5/2019 | 12th Endurance Challenge - New York Trail 50 km | 50,00 | ×2 |
| ✓ 9 | 6/4/2019 | 27th Leona Divide 50 km Run | 50,00 | ×2 |