Karen Boris
ID 137236
Born : 1970 Cat. W55 Ultrarunner since 2006 USA
32
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
32,9%
Rank quotient ?This runner's calculation uses 32 eligible race(s): Σ(rank − 1) = 1 649; Σ finishers = 5 010. 1 649 / 5 010 × 100 = 32.91%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed32
Km — ultra races2 053 km
> 100 km2
> 160 km1
Longest race160,9 km
15th Rio Del Lago 100 Mile Endurance Run — 7/11/2015

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F2
🏅 Top 30
🏅 Top 3 F4
Longest winning streak0
Current streak0

Records

50 km4h57'30100 km14h13'0150 mi9h23'28100 mi25h57'486 h50,84 km

HISTORY

32 race(s)
DateRacePerf.Rk
2020
07.03 50km USA31st Way Too Cool 50K Endurance Run 5:35:14 h191
11.01 50mi USA40th Avalon Benefit 50 Mile Run 9:23:28 h51
2019
13.07 100km USA21st Siskiyou Out Back 100 km Trail Run 14:13:01 h39
18.05 30mi USA9th Born to Run Ultra 30 Mile Marathon 5:07:58 h41
23.03 35mi USA21st Santa Barbara Nine Trails 35 Mile Endurance Run 9:30:50 h104
2018
06.10 6h USA1st Back On the Ranch Trail 6 Hour Run 50.839 km4
19.05 30mi USA8th Born to Run Ultra 30 Mile Marathon 5:11:48 h39
28.04 100km USA5th The Canyons Endurance 100 km Run 15:56:51 h136
31.03 50km USA12th Old Goat's 50 km Trail Race 7:32:41 h12
2017
07.10 50km USA4th No Name 5030 - 50 km Run 7:02:00 h24
20.05 30mi USA7th Born to Run Ultra 30 Mile Marathon 7:05:19 h52
25.03 35mi USA19th Santa Barbara Nine Trails 35 Mile Endurance Run 9:58:37 h54
11.03 68mi USA3rd Coyote Cohorts Backbone 68 Mile Trail Ultra 18:02:43 h27
2016
14.05 30mi USA6th Born to Run Ultra 30 Mile Marathon 4:53:24 h43
07.05 100km USA3rd The Canyons Endurance 100 km Run 15:54:47 h112
26.03 35mi USA18th Santa Barbara Nine Trails 35 Mile Endurance Run 9:30:07 h42
2015
07.11 100mi USA15th Rio Del Lago 100 Mile Endurance Run 25:57:48 h116
10.10 50mi USA33rd Dick Collins Firetrails 50 Mile 11:01:45 h97
22.08 50km USA24th Bulldog 50k Ultra Run 5:34:25 h54
16.05 30mi USA5th Born to Run Ultra 30 Mile Marathon 5:05:48 h49
28.03 35mi USA17th Santa Barbara Nine Trails 35 Mile Endurance Run 10:09:40 h31
2014
30.11 50mi USA6th Santa Barbara Red Rock 50 Mile 12:48:36 h37
11.10 50km USA6th Skyline to the Sea 50km 5:27:57 h27
17.05 50km USA4th Born to Run Ultra 50 km Marathon 4:57:30 h44
2013
18.05 50km USA3rd Born to Run Ultra 50 km Marathon 5:25:16 h33
2011
14.05 50km USA1st Born to Run Ultra 50 km Marathon 4:58:00 h7
2010
27.11 40mi USA2nd Santa Barbara Red Rock 40 Mile 8:55:00 h19
21.08 50km USA19th Bulldog 50k Ultra Run 5:12:15 h24
05.06 50km USA2nd Blue Canyon 50 km Trail Race 7:38:00 h15
18.04 50km USA3rd Skyline to the Sea 50km 5:23:28 h46
2008
29.11 33mi USARose Valley 33 Mile Endurance Run 7:03:14 h40
2006
25.11 35mi USA14th Santa Barbara Nine Trails 35 Mile Endurance Run 11:08:00 h71