John Hackbarth
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14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
46,3%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 1 034; Σ finishers = 2 232. 1 034 / 2 232 × 100 = 46.33%. A win adds 0 to the numerator. Lower is better.
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
14 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 07.12 | 50km | 6:17:06 h | 62 | |
| 02.11 | 55km | 8:55:03 h | 14 | |
| 2019 | ||||
| 19.10 | 50km | 5:12:56 h | 4 | |
| 2017 | ||||
| 19.08 | 50km | 6:03:16 h | 3 🥉 | |
| 08.04 | 50km | 4:55:20 h | 10 | |
| 25.03 | 50km | 6:27:54 h | 71 | |
| 2016 | ||||
| 09.04 | 50km | 5:20:11 h | 31 | |
| 2015 | ||||
| 11.04 | 50km | 4:52:07 h | 16 | |
| 2014 | ||||
| 11.10 | 50km | 4:25:04 h | 16 | |
| 25.01 | 50km | 7:25:31 h | 229 | |
| 2013 | ||||
| 23.11 | 50mi | 10:02:36 h | 424 | |
| 2011 | ||||
| 14.05 | 50mi | 10:34:37 h | 130 | |
| 26.03 | 30mi | 5:32:43 h | 23 | |
| 2010 | ||||
| 11.12 | 50km | 5:53:41 h | 15 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 23/11/2013 | 51st JFK 50 Mile | 80,47 | ×3 |
| ✓ 2 | 14/5/2011 | 30th Ice Age Trail 50 Mile Run | 80,47 | ×3 |
| ✓ 3 | 2/11/2024 | 15th Deadman Peaks 55 km Trail Run | 55,00 | ×2 |
| ✓ 4 | 7/12/2024 | 15th McDowell Mountain Frenzy 50 km | 50,00 | ×2 |
| ✓ 5 | 19/10/2019 | 3rd Black River Trail Classic 50 km | 50,00 | ×2 |
| ✓ 6 | 19/8/2017 | 1st Trail of the Dragon 50 km | 50,00 | ×2 |
| ✓ 7 | 8/4/2017 | 7th Hawkeye 50K Trail Run | 50,00 | ×2 |
| ✓ 8 | 25/3/2017 | 4th Behind the Rocks 50km Race | 50,00 | ×2 |
| ✓ 9 | 9/4/2016 | 6th Hawkeye 50K Trail Run | 50,00 | ×2 |
| ✓ 10 | 11/4/2015 | 5th Hawkeye 50K Trail Run | 50,00 | ×2 |
| ✓ 11 | 11/10/2014 | 1st The Runner's Flat 50K | 50,00 | ×2 |
| ✓ 12 | 25/1/2014 | 20th Mountain Mist 50k | 50,00 | ×2 |
| ✓ 13 | 11/12/2010 | 1st Hawkeye 50K Trail Run | 50,00 | ×2 |
| ✓ 14 | 26/3/2011 | 5th Clinton Lake Ultra | 48,28 | ×1 |