Courtney Scaife
ID 121107
Born : 1968 Cat. W55 Ultrarunner since 1998 USA
31
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
48,9%
Rank quotient ?This runner's calculation uses 31 eligible race(s): Σ(rank − 1) = 2 190; Σ finishers = 4 483. 2 190 / 4 483 × 100 = 48.85%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed31
Km — ultra races2 364 km
> 100 km1
> 160 km1
Longest race160,9 km
34th Wasatch Front 100 Mile — 6/9/2013

Km per year (ultra races)

50
1 race
2022
100
2 races
2023
135
2 races
2024
50
1 race
2025
80
1 race
2026

Race types (share of distance)

Road2,1%
Trail97,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F3
Longest winning streak0
Current streak0

Records

50 km7h12'22100 km17h02'2050 mi9h37'51100 mi34h27'23

HISTORY

31 race(s)
DateRacePerf.Rk
2026
15.08 50mi USA7th White Pine 50 Mile Backcountry Run 14:46:20 h101
2025
07.06 50km USA2nd Rose Canyon Ultra 8:41:49 h40
2024
17.08 50mi USA5th White Pine 50 Mile Backcountry Run 14:25:53 h71
20.07 55km USA23th Tahoe Rim Trail 55km Endurance Run 9:17:31 h71
2023
07.10 50km USA2nd Bear Trap Trail Races 9:06:22 h13
22.07 50km USA5th Palisades Ultra Trail Series (PUTS) - Big Elk 50k 9:12:39 h43
2022
16.07 50km USA5th Wy'east Howl 50km Race 7:12:22 h148
2021
12.06 50mi USA25th Snow Peaks 50 Mile Trail Run 14:56:32 h183
2019
08.06 50mi USA23nd Snow Peaks 50 Mile Trail Run 12:34:09 h166
2018
15.09 50mi USA12th Run Rabbit Run 50 Mile Endurance Run 12:23:55 h79
2017
14.10 50km USA6th Corner Canyon Ultra Trail Run 9:01:47 h32
2016
04.06 50mi USA20th Snow Peaks 50 Mile Trail Run 13:36:27 h133
2015
01.08 100km USA14th Katcina Mosa 100K Mountain Run 19:19:50 h42
25.07 50km USA8th Speedgoat 50k 10:56:51 h237
06.06 50mi USA19th Snow Peaks 50 Mile Trail Run 12:45:34 h102
2014
18.10 50km USA3rd Corner Canyon Ultra Trail Run 9:30:45 h27
02.08 100km USA13th Katcina Mosa 100K Mountain Run 17:02:20 h25
2013
06.09 100mi USA34th Wasatch Front 100 Mile 34:27:23 h160
10.08 100km USA12th Katcina Mosa 100K Mountain Run 19:33:14 h39
01.06 50mi USA17th Snow Peaks 50 Mile Trail Run 12:29:46 h81
2012
02.06 50mi USA16th Snow Peaks 50 Mile Trail Run 13:08:37 h105
2010
31.07 50km USA3rd Speedgoat 50k 8:11:19 h59
05.06 50mi USA14th Snow Peaks 50 Mile Trail Run 11:21:32 h41
2009
20.06 50mi USA15th San Juan Solstice 50 Mile Run 13:10:11 h46
2006
03.06 50mi USA10th Snow Peaks 50 Mile Trail Run 10:48:42 h28
2005
04.06 50mi USA9th Snow Peaks 50 Mile Trail Run 11:07:00 h25
2004
05.06 50mi USA8th Snow Peaks 50 Mile Trail Run 10:45:46 h33
17.04 50mi USA1st Desert Rats Trail Running Festival 50 Miles 9:37:51 h9
2001
02.06 50mi USA5th Snow Peaks 50 Mile Trail Run 10:45:16 h25
1999
05.06 50mi USA3rd Snow Peaks 50 Mile Trail Run 11:35:01 h28
1998
20.06 50mi USA4th San Juan Solstice 50 Mile Run 13:28:10 h29