David Kraybill
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Born : 1973
Cat. M50 Ultrarunner since 2011
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
21
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 States26,4%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 614; Σ finishers = 2 330. 614 / 2 330 × 100 = 26.35%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races537 km
Longest race80,5 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
9 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 7/12/2013 | 7th Endurance Challenge - California Trail 50 Mile | 80,47 | ×3 |
| ✓ 2 | 13/10/2012 | 30th Dick Collins Firetrails 50 Mile | 80,47 | ×3 |
| ✓ 3 | 3/12/2011 | 5th Endurance Challenge - California Trail 50 Mile | 80,47 | ×3 |
| ✓ 4 | 25/8/2012 | 13th Tamalpa Headlands 50K | 50,69 | ×2 |
| ✓ 5 | 9/6/2013 | 2nd Big Basin - Skyline to the Sea 50 km | 50,00 | ×2 |
| ✓ 6 | 15/9/2012 | 3rd Diablo 50 km Trail Run | 50,00 | ×2 |
| ✓ 7 | 30/6/2012 | 1st Marin Ultra Challenge 50 km Race | 50,00 | ×2 |
| ✓ 8 | 10/3/2012 | 23rd Way Too Cool 50K Endurance Run | 50,00 | ×2 |
| ✓ 9 | 24/11/2012 | 28th Quad Dipsea Trail Run | 45,06 | ×2 |