John Scarbrough
ID 477515
Born : 1980 Cat. M45 Ultrarunner since 2013 USA
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
47
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
19,0%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 1 067; Σ finishers = 5 630. 1 067 / 5 630 × 100 = 18.95%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races2 537 km
> 100 km6
> 160 km4
Longest race160,9 km
10th The Zion 100 Mile Run — 10/4/2021

Km per year (ultra races)

240
2 races
2022
180
2 races
2023
2024
159
1 race
2025
100
1 race
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

Records

50 km4h28'28100 km11h59'1450 mi9h34'29100 mi20h18'23

HISTORY

28 race(s)
DateRacePerf.Rk
2026
18.04 100km USA33rd Leona Divide 100 km Run 15:45:40 h26
2025
25.10 159.2km USA23rd Javelina Jundred 100 Mile Endurance Run 22:12:54 h118
2023
07.10 100km USA12th Cuyamaca 100 km Endurance Run 14:18:02 h43
23.04 50mi USA30th Leona Divide 50 Mile Run 13:00:53 h32
2022
29.10 159.2km USA20th Javelina Jundred 100 Mile Endurance Run 21:54:14 h77
07.04 50mi USA10th Beyond Limits Ultra Race 50mi 9:34:29 h3 🥉
2021
05.12 50km USA35th OTHTC High Desert 50K Ultra 5:15:29 h18
10.04 100mi USA10th The Zion 100 Mile Run 25:59:49 h11
2019
26.10 100mi USA17th Javelina Jundred 100 Mile Endurance Run 20:18:23 h37
27.04 100km USA6th The Canyons Endurance 100 km Run 14:15:44 h65
06.04 50mi USA27th Leona Divide 50 Mile Run 9:34:39 h9
2018
02.12 50km USA32nd OTHTC High Desert 50K Ultra 4:29:52 h12
28.04 100km USA5th The Canyons Endurance 100 km Run 13:40:21 h63
14.04 50km USA26th Leona Divide 50 km Run 5:28:06 h19
2017
03.12 50km USA31st OTHTC High Desert 50K Ultra 5:03:32 h17
05.08 100mi USA30th Angeles Crest 100 Mile 24:59:37 h15
08.07 50km USA12th Angeles National Forest 50k Trail Race 6:02:38 h11
11.06 33mi USA21st Holcomb Valley 33 Mile 6:04:10 h17
22.04 50km USA25th Leona Divide 50 km Run 5:49:09 h38
04.02 100km USA4th Sean O'Brien 100 km Trail Race 11:59:14 h47
2016
04.12 50km USA30th OTHTC High Desert 50K Ultra 4:28:28 h13
03.06 100mi USA15th San Diego 100 Mile Endurance Run 27:35:46 h59
06.02 100km USA3rd Sean O'Brien 100 km Trail Race 13:52:29 h45
2015
06.12 50km USA29th OTHTC High Desert 50K Ultra 4:39:17 h28
03.10 100km USA4th Cuyamaca 100 km Endurance Run 14:10:56 h52
04.04 50mi USA36th American River 50 Mile Endurance Run 9:38:08 h142
2014
07.12 50km USA28th OTHTC High Desert 50K Ultra 4:47:17 h42
2013
01.12 50km USA27th OTHTC High Desert 50K Ultra 4:53:43 h36