Stefanie Bernosky
Born : 1982 Cat. W40 Ultrarunner since 2011 USA
54
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
68
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
50,9%
Rank quotient ?This runner's calculation uses 84 eligible race(s): Σ(rank − 1) = 4 674; Σ finishers = 9 190. 4 674 / 9 190 × 100 = 50.86%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed84
Km — ultra races7 602 km
> 100 km20
> 160 km18
> 200 km1
> 24h9
> 48h4
Longest race235,8 km

Km per year (ultra races)

333
5 races
2022
847
8 races
2023
1 365
14 races
2024
305
5 races
2025
273
4 races
2026

Race types (share of distance)

Road26,1%
Trail73,9%

Wins & podiums (ultra)

🏆 Win1
🏆 Win F6
🏅 Top 31
🏅 Top 3 F19
Longest winning streak1
Current streak0

HISTORY

84 race(s)
DateRacePerf.Rk
2026
30.05 12h USA3rd Lake Tye Challenge - 12h 68.397 km14
09.05 100km USA43rd Quicksilver 100 km Endurance Run 15:41:53 h128
28.03 55km USA16th Badger Mountain 55 km Challenge 8:16:07 h47
14.02 50km USA16th Woolley Trail Runs 50k 5:29:05 h4
2025
02.08 32h USA12th Hamster Endurance Runs 32 Hour Run 54.395 km30
07.06 6h USA2nd Lake Tye Challenge - 6h 46.510 km7
25.05 50km USA14th Pigtails Challenge 50 km 7:52:47 h22
29.03 12h USA15th Dizzy Daze 12 Hour Race 72.098 km18
15.02 24h USA12th Jackpot Ultra Running Festival 24 Hour Race 81.765 km20
2024
28.12 72h USA41th Across the Years, 72h 235.767 km19
14.12 50km USA22nd Pigtails Run 50K 4:42:42 h7
08.12 50mi USA16th Hunter S. Thompson Fear & Loathing 50 Miles 9:25:00 h4
09.11 100mi USA3rd Willapa Trail Festival 100 Miles Race 24:56:00 h13
03.08 32h USA11th Hamster Endurance Runs 32 Hour Run 92.054 km29
08.06 6h USA1st Lake Tye Challenge - 6h 45.061 km8
25.05 13h USA13th Sri Chinmoy 13 Hour Race 81.786 km7
04.05 100km USA27th Miwok 100k Trail Race 13:46:06 h102
20.04 50mi USA20th Capitol Peak 50 Miler 11:37:52 h24
13.04 6h USA11th Cottontail 6 Hour Race 45.222 km5
30.03 12h USA14th Dizzy Daze 12 Hour Race 82.398 km11
22.03 100km USA14th Badger Mountain 100 km Challenge 13:11:36 h6
17.02 100mi USA11th Jackpot Ultra Running Festival 100 Mile Race - US Championship 19:57:55 h14
20.01 50km USA20th Capitol Peak MegaFatAss 6:57:43 h41
2023
28.12 48h USA39th Across the Years, 48h 190.427 km8
04.11 100mi USA4th Rim to River 100 Mile Race 30:18:19 h127
12.08 32h USA10th Hamster Endurance Runs 32 Hour Run 62.764 km34
28.05 50km USA12th Pigtails Challenge 50 km 5:17:50 h4
20.05 50km USA15th Sun Mountain 50 km Trail Races 7:14:44 h107
06.05 100km USA26th Miwok 100k Trail Race 13:47:00 h129
24.03 100mi USA13th Badger Mountain 100 Mile Challenge 30:28:08 h52
11.03 12h USA13th Dizzy Daze 12 Hour Race 72.098 km13
2022
31.12 24h USA38th Across the Years, 24h 102.858 km46
25.03 50mi USA12th Badger Mountain 50 Mile Challenge 12:09:19 h50
19.02 50km USA12th Woolley Trail Runs 50k 5:15:20 h7
22.01 50km USA18th Capitol Peak MegaFatAss 6:37:05 h45
08.01 50km USA26th Bridle Trails Winter Running Festival 5:39:44 h22
2021
19.11 48h USA3rd Fat Ox 48 Hour Run 188.454 km8
09.10 100mi USA5th Canal Corridor 100 Mile Endurance Run 26:09:00 h66
25.09 50mi USA3rd The Cascade Super 50mi Ultra Race 8:39:38 h11
31.07 50mi USA29th White River 50 Mile Endurance Run 14:33:07 h61
24.07 50km USA6th Needles 50k 12:20:00 h54
2019
30.12 55h USA7th Snowdrop Ultra 55 Hour Race 133.330 km124
09.11 100mi USA6th Tunnel Hill 100 Mile Race 27:05:22 h167
06.07 50km USA4th Needles 50k 9:47:00 h45
04.05 100km USA24th Miwok 100k Trail Race 13:40:13 h119
28.04 50km USA36th Mt. Si 50 km Ultra Run 4:54:49 h11
23.03 12h USA10th Dizzy Daze 12 hours 82.398 km7
02.02 100mi USA27th Rocky Raccoon 100 Mile Trail Run 26:41:52 h105
2018
27.10 100mi USA16th Javelina Jundred 100 Mile Endurance Run 21:23:27 h49
13.10 50km USA5th Elk-King’s 50 km Race 7:00:43 h41
25.08 100mi USA20th Cascade Crest Classic 100 Mile 31:39:09 h109
28.07 50mi USA26th White River 50 Mile Trail Run 11:57:51 h135
28.04 100km USA5th The Canyons Endurance 100 km Run 16:39:41 h177
2017
04.11 100mi USA17th Rio Del Lago 100 Mile Endurance Run 25:45:07 h113
07.10 50km USA16th Baker Lake 50K Ultra Trail Run 6:09:28 h62
05.08 50mi USA25th White River 50 Mile Trail Run 12:30:32 h145
18.03 50km USA25th Chuckanut 50K 5:42:40 h152
26.02 50km USA10th Lord Hill Trail Run 6:09:12 h14
2016
27.08 100mi USA18th Cascade Crest Classic 100 Mile 32:30:51 h105
25.06 50mi USA6th Black Hills 50 Mile Run 11:27:36 h16
07.05 100km USA21st Miwok 100k Trail Race 14:02:42 h174
06.02 100mi USA24th Rocky Raccoon 100 Mile Trail Run 22:21:56 h52
2015
31.10 100mi USA13th Javelina Jundred 100 Mile Endurance Run 22:36:16 h65
03.10 50km USA14th Rock/Creek StumpJump 50K 8:00:21 h129
05.09 50km USA3rd The Rut Mountain Runs 11:39:10 h301
22.08 100km USA14th Waldo 100K Trail Run 16:11:07 h80
25.07 9h USA1st Fossil Valley 9 Hour Trail Extravaganza 56.278 km13
2014
27.12 12h USA3rd Houston Hundred 12 hour Ultra 93.341 km1 🏆
06.12 100km USA4th Cajun Coyote Ultras & Trail Fest 100 km 14:49:00 h6
14.06 50km USA2nd Bryce 50 km Trail Run 9:13:46 h76
05.04 100mi USA20th Umstead Endurance Run 100 Miles 27:29:13 h115
22.03 50km USA2nd Spring Equinox 50K 7:18:00 h15
2013
07.12 100km USA3rd Cajun Coyote Ultras & Trail Fest 100 km 13:23:00 h5
06.04 50km USA13th Hells Hills 50km Race 6:03:31 h30
02.03 50mi USA4th Nueces 50 Mile Trail Run 10:25:46 h42
02.02 100mi USA21st Rocky Raccoon 100 Mile Trail Run 23:30:37 h86
2012
01.12 50mi USA23rd Sunmart Texas Trails 50 Mile 9:19:49 h5
03.11 50km USA20th Rocky 50 km Trail Run 5:00:59 h8
01.09 60km USA6th Capt'n Karl's Trail Series - Reveille Peak Ranch 9:18:32 h30
14.04 50km USA20th Hog's Hunt 50K Trail Run 6:29:40 h46
03.03 50km USA3rd Nueces 50 km Trail Run 6:38:16 h28
04.02 50mi USA20th Rocky Raccoon 50 Mile Trail Run 10:58:32 h107
2011
10.12 50km USA22nd Sunmart Texas Trails 50 km 6:17:07 h38
02.10 50km USA6th Blues Cruise 50K Ultra Trail 7:03:54 h186