Randy Davidson
ID 90849
Born : 1953 Cat. M70 Ultrarunner since 1994 USA
24
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
40
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
55,9%
Rank quotient ?This runner's calculation uses 24 eligible race(s): Σ(rank − 1) = 825; Σ finishers = 1 476. 825 / 1 476 × 100 = 55.89%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed24
Km — ultra races1 891 km
> 100 km5
> 160 km5
Longest race160,9 km
1st Ozark Trail 100 Mile Endurance Run — 7/11/2009

Km per year (ultra races)

2022
50
1 race
2023
50
1 race
2024
50
1 race
2025
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win1
🏆 Win M1
🏅 Top 33
🏅 Top 3 M3
Longest winning streak1
Current streak0

Records

50 km4h47'5050 mi8h27'44100 mi20h37'37

HISTORY

24 race(s)
DateRacePerf.Rk
2025
01.02 50km USA30th White Rock Classic 50K 7:51:00 h32
2024
16.03 50km USA20th Three Days of Syllamo 50 km Run 8:58:58 h98
2023
17.03 50km USA19th Three Days of Syllamo 50 km Run 8:23:28 h86
2013
16.02 50km USA21st Sylamore Trail 50k Run 7:57:20 h139
2009
07.11 100mi USA1st Ozark Trail 100 Mile Endurance Run 31:19:46 h50
18.07 50km USA18th Full Moon Run - Midnight 50K 6:24:13 h43
21.02 50km USA17th Sylamore Trail 50k Run 6:57:26 h59
2003
04.10 100mi USA13th Arkansas Traveller 100 25:39:59 h27
2001
06.10 100mi USA11th Arkansas Traveller 100 23:21:53 h29
2000
07.10 100mi USA10th Arkansas Traveller 100 22:18:46 h23
1999
06.11 50mi USA17th Mountain Masochist 50 Mile Trail Run 10:45:28 h80
11.09 50mi USA4th Dances with Dirt - Hell 50M Ultra 10:19:22 h17
20.02 50km USA7th Sylamore Trail 50k Run 6:15:54 h29
1998
25.07 50km USA7th Full Moon Run - Midnight 50K 5:11:36 h6
21.03 40mi USAWild Hog Double Loop 6:58:44 h3 🥉
07.03 50km USA18th Carl Touchstone Memorial Mississippi Trail 50 km 9:38:20 h85
07.02 50km USA5th White Rock Classic 50K 5:58:00 h5
1997
26.07 50km USA6th Full Moon Run - Midnight 50K 5:07:15 h2 🥈
1995
25.09 50mi USA2nd Quivering Quads 50M Trail Race 9:01:12 h1 🏆
29.07 50km USA4th Full Moon Run - Midnight 50K 4:47:50 h8
29.04 50mi USA7th Ouachita Trail 50 Mile 8:27:44 h8
18.02 50km USA3rd Sylamore Trail 50k Run 5:28:25 h9
04.02 100mi USA3rd Rocky Raccoon 100 Mile Trail Run 20:37:37 h6
1994
16.07 50km USA3rd Full Moon Run - Midnight 50K 4:56:39 h4