Britny Heinzelmann
ID 1248990
Born : 1992 Cat. W23 Ultrarunner since 2019 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
67
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
65,4%
Rank quotient ?This runner's calculation uses 62 eligible race(s): Σ(rank − 1) = 3 649; Σ finishers = 5 578. 3 649 / 5 578 × 100 = 65.42%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed62
Km — ultra races6 814 km
> 100 km19
> 160 km16
> 200 km7
> 24h6
> 48h3
Longest race383,0 km
9th Moab 240 Endurance Run — 10/10/2025

Km per year (ultra races)

1 425
9 races
2022
1 146
11 races
2023
836
10 races
2024
1 177
8 races
2025
780
8 races
2026

Race types (share of distance)

Road34,5%
Trail63,6%
Elim.1,8%

Wins & podiums (ultra)

🏆 Win1
🏆 Win F8
🏅 Top 33
🏅 Top 3 F22
Longest winning streak1
Current streak0

Records

50 km6h54'02100 km17h22'1650 mi10h51'06100 mi29h42'4712 h78,06 km24 h144,84 km48 h178,64 km

HISTORY

62 race(s)
DateRacePerf.Rk
2026
08.08 55km USA12th Skyline Mountain Marathon 55K 10:21:34 h54
18.07 50km USA15th Harding Hustle 50K 7:50:18 h102
05.06 24h USA11th Alaska Endurance 24 Hour Trail Run 131.966 km7
06.05 125mi USA6th Cocodona Sedona Canyons 44:48:49 h76
11.04 100mi USA15th The Zion 100 Mile Run 33:07:15 h128
21.03 50km USA11th TDR Trail Trashed 50K 7:30:58 h10
28.02 50km USA1st SoCalUltraTrail at Tejon Ranch 7:51:36 h57
21.02 50mi USA13th Jackpot Ultra Running Festival 50 Mile Race 10:51:06 h14
2025
28.12 200mi USA41st Across The Years, 200mi 3d 03:54:14 h6
22.11 50mi USA10th Valley of Fire Backcountry（Fire Fest Ultra） 13:21:41 h8
25.10 98.3km USA23rd Javelina Jundred 100 km Endurance Run 15:29:43 h117
10.10 238mi USA9th Moab 240 Endurance Run 4d 18:46:20 h134
09.08 52km USA13th Insomniac Night Trail Run Series - Vertigo 52k 9:01:01 h18
09.05 38mi USA5th Cocodonan Flagstaff Crest 10:05:54 h70
12.04 50mi USA32nd Leona Divide 50 Mile Run 16:28:31 h74
08.02 100km USA12th Black Canyon Trail 100 km Run 18:19:25 h695
2024
28.12 200mi USA41th Across The Years, 200mi 3d 06:14:07 h7
23.11 50mi USA9th Valley of Fire Backcountry（Fire Fest Ultra） 14:23:31 h10
09.11 50km USA4th Red Rock Canyon 50 km Race 8:24:04 h56
26.10 50km USA2nd Trail of Terror 7:04:43 h6
05.10 50km USA44th Wild Wild West 50k 9:00:07 h32
28.09 50km USA13th Flagstaff Sky Peaks 50 km Mountain Run 9:20:22 h47
08.06 50km USA3rd Malibu Canyon Trail Races (SAMO 50 km) 9:19:37 h94
23.03 50km USA9th TDR Trail Trashed 50K 8:09:46 h14
17.02 50mi USA11th Jackpot Ultra Running Festival 50 Mile Race 11:02:05 h11
03.02 33mi USA1st The Bootleg Boogie 8:29:20 h8
2023
28.12 72h USA39th Across the Years, 72h 278.841 km11
02.12 50km USA8th The Capstone 50km Trail Race 9:48:41 h6
18.11 100mi USA8th Valley of Fire Backcountry（Fire Fest Ultra） 32:48:34 h12
11.11 50km USA3rd Red Rock Canyon 50 km Race 9:06:01 h85
28.10 98.3km USA21st Javelina Jundred 100 km Endurance Run 16:28:42 h143
27.05 24h USA15th Nanny Goat 24 Hour Race 144.840 km7
20.05 12h USA2nd Flagstaff Doggie Dash & Ultra Bash 12h 74.029 km5
23.04 50km USA30th Leona Divide 50 km Run 9:18:11 h66
11.03 50mi USA9th Antelope Canyon 50 Mile Race 14:18:42 h189
04.03 12h USA10th Jackpot Ultra Running Festival 12 Hour Race 78.059 km5
04.02 50mi USA11th Elephant Mountain 50 Mile 14:49:55 h27
2022
28.12 72h USA38th Across the Years, 72h 261.360 km13
03.12 50km USA8th Ray Miller 50 km Trail Race 7:41:47 h57
05.11 100mi USA7th Valley of Fire Backcountry（Fire Fest Ultra） 33:13:25 h6
07.10 238mi USA6th Moab 240 Endurance Run 4d 15:41:12 h158
16.07 50mi USA21th Tahoe Rim Trail 50M Endurance Run 15:23:13 h101
09.04 100mi USA11th The Zion 100 Mile Run 34:56:22 h122
26.02 50km USA3rd Flat Top Mesa 50 km Endurance Run 8:37:23 h8
19.02 48h USA9th Jackpot Ultra Running Festival 48 Hour Race 178.637 km9
12.02 99.9km USA9th Black Canyon Trail 100 km Run 17:22:16 h430
2021
13.11 100mi USA6th Valley of Fire Backcountry 100 Mile Trailrace 32:52:57 h21
30.10 12h USA2nd Madness in Moab - Canyonlands 12 Hour Race 69.716 km1 🏆
02.10 50km USA10th Flagstaff Sky Peaks 50 km Mountain Run 9:07:36 h27
19.08 100mi USA15th Headlands Hundred 100 Mile Endurance Run 42:32:00 h27
29.05 50mi USA9th Bryce 50 Mile Trail Run 16:15:45 h190
23.04 24h USA8th Jackpot Ultra Running Festival 24 Hour Race 128.747 km9
04.04 33.7mi USA2nd Dalmatian Run Fest 33 Mile Sunday Run 7:48:53 h4
03.04 33.7mi USA2nd Dalmatian Run Fest 33 Mile Saturday Run 7:41:07 h4
02.04 33.7mi USA2nd Dalmatian Run Fest 33 Mile Friday Run 7:06:41 h2 🥈
20.02 102mi USA2nd Flat Top Mesa 100 Mile Endurance Run 34:53:40 h13
2020
04.09 17h USA3rd Last One Standing Ultra Marathon 48.280 km42
15.08 50km USA1st Stay Away 50 km Race 6:54:02 h3 🥉
14.02 100mi USA7th Jackpot Ultra Running Festival 100 Mile Race 29:42:47 h18
2019
06.09 17h USA2nd Last One Standing Ultra Marathon 77.248 km16
22.06 50mi USA13th Running With The Devil 50 Mile Race 11:58:26 h9
02.03 55km USA10th Red Mountain 55K 5:19:32 h10