Brianna Grigsby
ID 872439
Born : 1987 Cat. W35 Ultrarunner since 2016 USA
46
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
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
2
Countries visited ?RSASouth AfricaUSAUnited States
12,9%
Rank quotient ?This runner's calculation uses 47 eligible race(s): Σ(rank − 1) = 1 098; Σ finishers = 8 497. 1 098 / 8 497 × 100 = 12.92%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed47
Km — ultra races4 103 km
> 100 km10
> 160 km5
> 200 km1
Longest race402,3 km
2nd Cocodona 250 Mile Race — 2/5/2022

Km per year (ultra races)

915
7 races
2022
458
5 races
2023
200
2 races
2024
315
3 races
2025
179
2 races
2026

Race types (share of distance)

Trail100,0%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F13
🏅 Top 38
🏅 Top 3 F23
Longest winning streak0
Current streak0

Records

50 km4h16'34100 km9h49'4350 mi9h04'59100 mi17h04'49

HISTORY

47 race(s)
DateRacePerf.Rk
2026
28.03 74mi USA14th Georgia Death Race 14:20:01 h4
17.01 60km USA16th Coldwater Rumble 60K Race 5:20:11 h6
2025
06.12 55km USA12th Colossal Vail 50 km 4:40:44 h2 🥈
06.06 100mi USA24th San Diego 100 Mile Endurance Run 20:22:41 h3 🥉
12.04 98.9km USA11th Gorge Waterfalls 100k 11:24:41 h62
2024
23.11 100km RSA11th Ultra-Trail Cape Town (UTCT) 100 km 15:56:10 h38
03.08 100km USA23rd Waldo 100K Trail Run 12:13:53 h9
2023
15.09 100mi USA17th Run Rabbit Run 100 Mile UltraMarathon - Hares Run 25:55:45 h38
17.06 46km USA8th The Broken Arrow Skyrace 5:44:06 h79
29.04 101.4km USA10th The Canyons Endurance 100 km Run 11:12:07 h19
25.03 50km USA31st Crown King Scramble 50K 5:04:41 h11
18.02 99.9km USA10th Black Canyon Trail 100 km Run 9:53:04 h41
2022
29.10 159.2km USA20th Javelina Jundred 100 Mile Endurance Run 17:04:49 h21
24.09 50km USA11th Flagstaff Sky Peaks 50 km Mountain Run 4:57:28 h2 🥈
17.09 50km USA13th Javelina Jangover Night Run 50K 4:16:34 h3 🥉
02.05 250mi USA2nd Cocodona 250 Mile Race 4d 03:12:24 h39
16.04 54km USA10th Insomniac Night Trail Run Series - Sinister Night Runs 4:59:05 h2 🥈
12.02 99.9km USA9th Black Canyon Trail 100 km Run 9:49:43 h27
08.01 100km USA22nd Bandera 100 km Endurance Run 10:15:42 h19
2021
04.12 50km USA12th McDowell Mountain Frenzy 50 km 4:29:23 h6
30.10 100km USA19th Javelina Jundred 100 km Endurance Run 9:51:19 h4
25.09 50km USA12th Javelina Jangover Night Run 50K 4:27:24 h3 🥉
14.02 100km USA8th Black Canyon Trail 100 km Run 10:50:40 h55
16.01 52km USA11th Coldwater Rumble 52K Race 4:54:29 h8
2020
07.11 74mi USA8th Georgia Death Race 17:18:31 h8
12.09 105km USA9th Mogollon Monster 105 km 15:50:15 h3 🥉
15.02 60km USA7th Black Canyon Trail 60 km Run 5:43:18 h4
2019
26.10 100mi USA17th Javelina Jundred 100 Mile Endurance Run 19:39:08 h29
05.10 50km USA8th Flagstaff Sky Peaks 50 km Mountain Run 8:23:53 h19
10.08 50km USA7th The Nifty Fifty 5:19:02 h6
08.06 54km USA4th Flagstaff Extreme Big Pine 54K Trail Run 5:22:45 h6
30.03 50km USA27th Crown King Scramble 50K 5:50:35 h22
16.02 100km USA6th Black Canyon Trail 100 km Run 10:49:14 h78
05.01 50km USA9th San Tan Scramble 50K 5:13:12 h14
2018
03.11 100mi USA18th Rio Del Lago 100 Mile Endurance Run 25:26:11 h74
06.10 50km USA7th Flagstaff Sky Peaks 50 km Mountain Run 6:39:52 h5
09.06 54km USA4th Flagstaff Extreme Big Pine 54K Trail Run 5:31:51 h9
17.02 100km USA5th Black Canyon Trail 100 km Run 12:37:35 h81
06.01 50km USA8th San Tan Scramble 50K 5:09:13 h8
2017
11.11 50mi USA4th Colossal Vail 50 Mile 9:04:59 h3 🥉
07.10 55km USA6th Flagstaff Sky Peaks 50 km Mountain Run 10:20:14 h19
16.06 50mi USA5th Bryce 50 Mile Trail Run 14:07:50 h91
03.06 50km USA28th Shadow of the Giants 50K 6:07:05 h48
11.02 50km USA19th Pemberton Trail 50 km 5:36:43 h26
2016
12.11 50km USA3rd Colossal Vail 50 km 7:05:58 h47
15.10 50km USA7th Cave Creek Thriller 50K Race 6:18:03 h25
11.06 54km USA2nd Flagstaff Extreme Big Pine 54K Trail Run 6:24:38 h19