David Bernstein
ID 158775
Born : 1972 Cat. M50 Ultrarunner since 2010 USA
21
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
32
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 ?USAUnited States
77,9%
Rank quotient ?This runner's calculation uses 21 eligible race(s): Σ(rank − 1) = 763; Σ finishers = 980. 763 / 980 × 100 = 77.86%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed21
Km — ultra races1 410 km
> 100 km2
> 24h4
Longest race122,1 km
7th 24H The Hard Way — 24/10/2015

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Road46,0%
Trail54,0%

Records

50 km6h35'06100 km20h46'5150 mi13h09'036 h45,06 km12 h75,09 km24 h122,05 km

HISTORY

21 race(s)
DateRacePerf.Rk
2021
10.04 50km USA23th Taturs Lake McMurtry 50 km Trail Race 9:52:28 h79
2018
20.10 24h USA10th 24H The Hard Way 112.654 km15
2017
21.10 24h USA9th 24H The Hard Way 49.535 km34
2016
02.04 50mi USA4th Prairie Spirit 50 Mile Trail Ultra Race 13:09:03 h30
23.01 50km USA5th Go Short, Go Long, Go Very Long 50K 6:35:15 h27
2015
24.10 24h USA7th 24H The Hard Way 122.052 km15
05.09 50km USA6th Do-Wacka-Do 50 km Trail Run 9:26:22 h14
28.03 50mi USA3rd Prairie Spirit 50 Mile Trail Ultra Race 14:07:29 h98
25.01 50km USA4th Go Short, Go Long, Go Very Long 50K 7:45:16 h36
17.01 50km USA3rd Ouachita Switchbacks 50K 6:45:00 h11
2013
26.10 24h USA5th 24H The Hard Way 97.510 km82
07.09 50km USA4th Do-Wacka-Do 50 km Trail Run 10:23:00 h19
21.06 6h USA6th Summer Solstice 6 Hour Endurance Run 45.061 km13
2012
27.10 12h USA4th 12H The Hard Way 64.116 km9
25.02 50km USA3rd Post Oak Lodge 50K Trail Challenge 9:27:25 h92
28.01 50km USA1st Go Short, Go Long, Go Very Long 50K 6:35:06 h20
2011
15.10 100km USA1st Taturs Pumpkin Holler 100 km Race 20:46:51 h12
01.07 51.5mi USA2nd Midnight Madness 50 Miler Road Race 14:02:33 h91
02.04 50km USA13th Taturs Lake McMurtry 50 km Trail Race 8:06:41 h39
27.02 50km USA2nd Post Oak Lodge 50K Trail Challenge 7:40:26 h34
2010
23.10 12h USA2nd 12H The Hard Way 75.091 km14