Kristofer Koerber
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6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
16
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
33,2%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 258; Σ finishers = 778. 258 / 778 × 100 = 33.16%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races324 km
> 24h2
Longest race67,6 km
5th Bubba's Backyard Ultra — 7/10/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail61,7%
Elim.38,3%
Records
HISTORY
6 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 05.10 | Backyard Ultra | 56.327 km | 71 | |
| 2023 | ||||
| 07.10 | Backyard Ultra | 67.592 km | 50 | |
| 2021 | ||||
| 10.10 | 50km | 6:46:40 h | 11 | |
| 2017 | ||||
| 15.10 | 50km | 5:18:46 h | 11 | |
| 2016 | ||||
| 30.04 | 50km | 5:57:49 h | 105 | |
| 2015 | ||||
| 18.10 | 50km | 5:41:40 h | 16 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 7/10/2023 | 5th Bubba's Backyard Ultra | 67,59 | ×4 |
| ✓ 2 | 5/10/2024 | 6th Bubba's Backyard Ultra | 56,33 | ×3 |
| ✓ 3 | 10/10/2021 | 10th Big Brad Ultras - Pounder 50 km | 50,00 | ×3 |
| ✓ 4 | 15/10/2017 | 6th Big Brad Ultras - Pounder 50 km | 50,00 | ×3 |
| ✓ 5 | 30/4/2016 | 9th Endurance Challenge - New York Trail 50 km | 50,00 | ×3 |
| ✓ 6 | 18/10/2015 | 4th Big Brad Ultras - Pounder 50 km | 50,00 | ×3 |