David Byczek
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Born : 1970
Cat. M55 Ultrarunner since 2013
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
15
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 States49,8%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 252; Σ finishers = 506. 252 / 506 × 100 = 49.80%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races261 km
Longest race83,7 km
2nd Possum Kingdom Trail Run 52 Miles — 14/4/2014
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road19,2%
Trail80,8%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M1
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2014 | ||||
| 27.12 | 12h | 3rd Houston Hundred 12 hour Ultra |
77.248 km | 2 🥈 |
| 14.04 | 52mi | 2nd Possum Kingdom Trail Run 52 Miles |
14:03:30 h | 20 |
| 2013 | ||||
| 09.11 | 50km | 18th Rockledge Rumble Trail Run |
7:04:11 h | 49 |
| 24.02 | 50km | 6th The Cowtown Marathon |
5:48:36 h | 185 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/4/2014 | 2nd Possum Kingdom Trail Run 52 Miles | 83,69 | ×5 |
| ✓ 2 | 27/12/2014 | 3rd Houston Hundred 12 hour Ultra | 77,25 | ×5 |
| ✓ 3 | 9/11/2013 | 18th Rockledge Rumble Trail Run | 50,00 | ×3 |
| ✓ 4 | 24/2/2013 | 6th The Cowtown Marathon | 50,00 | ×3 |