John Davidson
ID 469817
Born : 1965 Cat. M60 Ultrarunner since 2013 USA
23
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
73,0%
Rank quotient ?This runner's calculation uses 25 eligible race(s): Σ(rank − 1) = 1 849; Σ finishers = 2 533. 1 849 / 2 533 × 100 = 73.00%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed25
Km — ultra races2 243 km
> 100 km4
> 160 km4
Longest race160,9 km
24th Rocky Raccoon 100 Mile Trail Run — 6/2/2016

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Trail100,0%

Records

50 km7h41'39100 km16h55'4150 mi11h48'44100 mi27h26'45

HISTORY

25 race(s)
DateRacePerf.Rk
2016
02.04 50mi USA16th Hells Hills 50 Mile Race 12:30:17 h37
05.03 52.4mi USA1st Pandora's Box of Rox 50 Mile 13:39:19 h20
06.02 100mi USA24th Rocky Raccoon 100 Mile Trail Run 27:26:45 h152
09.01 100km USA16th Bandera 100 km Ultratrail 16:55:41 h170
2015
21.11 50mi USA11th Wild Hare 50 Mile Race 12:04:08 h40
29.08 60km USA9th Capt'n Karl's Trail Series - Reveille Peak Ranch 9:46:52 h39
18.07 60km USA9th Capt'n Karl's Trail Series - Muleshoe Bend 10:39:24 h29
04.04 50mi USA15th Hells Hills 50 Mile Race 11:56:11 h33
28.02 50mi USA6th Nueces 50 Mile Trail Run 13:35:00 h31
31.01 100mi USA23rd Rocky Raccoon 100 Mile Trail Run - US Championchips 29:11:45 h65
31.01 100mi USA23rd Rocky Raccoon 100 Mile Trail Run 29:11:45 h233
10.01 100km USA15th Bandera 100 km Ultratrail 17:53:01 h147
10.01 100km USA15th Bandera 100 km Ultratrail - US Trail Championships 17:53:01 h54
2014
22.11 50mi USA10th Wild Hare 50 Mile Race 11:50:13 h28
25.10 100mi USA8th Cactus Rose 100 Mile 34:20:56 h36
06.09 60km USA8th Capt'n Karl's Trail Series - Reveille Peak Ranch 10:32:46 h42
09.08 60km USA8th Capt'n Karl's Trail Series - Colorado Bend 11:28:27 h65
19.07 60km USA8th Capt'n Karl's Trail Series - Muleshoe Bend 10:34:53 h52
21.06 60km USA8th Capt'n Karl's Trail Series - Pedernales Falls 9:43:30 h61
26.04 50mi USA1st Brazos Bend 50 - 50 Mile 11:52:35 h60
05.04 50mi trail race USA14th Hells Hills 50 Mile Race 12:42:02 h67
01.03 50mi USA5th Nueces 50 Mile Trail Run 13:24:47 h40
01.02 50mi USA22nd Rocky 50 Mile Trail Run 11:48:44 h191
11.01 50km USA14th Bandera 50 km Ultratrail 7:41:39 h111
2013
26.10 50mi USA7th Cactus Rose 50 Mile 14:13:39 h71