Justina Starobin
ID 43366
Born : 1961 Cat. W65 Ultrarunner since 2002 USA
51
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
62
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
81,7%
Rank quotient ?This runner's calculation uses 66 eligible race(s): Σ(rank − 1) = 11 548; Σ finishers = 14 138. 11 548 / 14 138 × 100 = 81.68%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed66
Km — ultra races5 950 km
> 100 km7
> 160 km6
> 200 km2
> 24h21
> 48h1
Longest race500,0 km
17th Last Annual Vol-State 500K Endurance Run — 14/7/2022

Km per year (ultra races)

600
2 races
2022
130
2 races
2023
341
3 races
2024
180
2 races
2025
154
2 races
2026

Race types (share of distance)

Road29,8%
Trail70,2%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F1
🏅 Top 31
🏅 Top 3 F4
Longest winning streak0
Current streak0

Records

50 km6h57'31100 km17h30'4150 mi11h17'05100 mi27h58'0224 h116,97 km

HISTORY

66 race(s)
DateRacePerf.Rk
2026
11.07 50mi USA20th Viaduct Trail Ultramarathon 50 Mile 15:47:00 h13
28.03 24h USA4th Genesee Valley Ultra 74.029 km31
2025
06.09 100km USA14th Pine Creek Challenge 100 km 19:28:00 h28
25.01 24h USA14th Angela Ivory 24 Hour Memorial Run 80.467 km3 🥉
2024
07.09 100km USA13th Pine Creek Challenge 100 km 18:20:58 h15
13.07 50mi USA18th Viaduct Trail Ultramarathon 50 Mile 15:19:00 h16
16.02 100mi USA6th Grandmaster Ultras 100 Mile Run 39:43:00 h13
2023
07.06 24h USA4th Run your Towne 24 Hour Challenge 45.383 km20
28.01 24h USA12th Angela Ivory 24 Hour Memorial Run 84.812 km4
2022
10.09 100km USA11th Pine Creek Challenge 100 km 17:30:41 h20
14.07 500km USA17th Last Annual Vol-State 500K Endurance Run 8d 22:08:48 h67
2021
20.11 24h USA10th Crooked Road 24 Hour Ultra 93.506 km38
11.09 50mi USA10th Pine Creek Challenge 50 Miles 16:08:54 h36
02.06 24h USA2nd Run your Towne 24 Hour Challenge 87.741 km15
13.05 72h USA13th 3 Days at the Fair 72 Hour Race 255.885 km17
2020
21.11 50mi USA58th JFK 50 Mile 12:39:52 h514
12.09 50mi USA9th Pine Creek Challenge 50 Miles 15:51:02 h34
2019
14.12 50km USA1st Freight Train 50km Trail Run 8:37:50 h74
23.11 24h USA9th Crooked Road 24 Hour Ultra 87.731 km37
07.09 50mi USA8th Pine Creek Challenge 50 Miles 14:55:26 h20
05.06 24h USA1st Run your Towne 24 Hour Challenge 94.951 km19
25.05 24h USA1st Cow Bone 24 Hour Trail Run 86.904 km10
31.03 50km USA2nd Greenbrier 50k Fun Run 9:46:33 h57
08.02 100mi USA1st Grandmaster Ultras 100 Mile Run 41:15:10 h18
2018
17.11 24h USA8th Crooked Road 24 Hour Ultra 91.732 km46
18.10 24h USA1st Crazy Owl Endurance Challenge 24 Hour 67.592 km20
11.08 50km USA2nd Trail of the Dragon 50 km 10:13:33 h21
28.07 50mi USA12th Viaduct Trail Ultramarathon 50 Mile 15:35:00 h15
24.03 50km USA1st Greenbrier 50k Fun Run 10:33:10 h43
03.02 50km USA3rd Pain in the Neck 8:43:00 h6
13.01 50km USA7th Bear Bait 50K Ultramarathon 8:19:49 h26
2017
18.11 24h USA7th Crooked Road 24 Hour Ultra 87.403 km60
10.09 100km USA6th Pine Creek Challenge 100 km 18:43:45 h29
29.07 50mi USA11th Viaduct Trail Ultramarathon 50 Mile 14:58:00 h20
22.07 24h USA4th Montour 24 Endurance Runs - 24hrs run 53.108 km63
2016
19.11 24h USA6th Crooked Road 24 Hour Ultra 92.138 km42
10.09 100km USA5th Pine Creek Challenge 100 km 20:17:27 h30
23.07 24h USA3rd Montour 24 Endurance Runs - 24hrs run 94.146 km37
2015
21.11 24h USA5th Crooked Road 24 Hour Ultra 73.693 km72
25.07 24h USA2nd Montour 24 Endurance Runs - 24hrs run 82.076 km33
2014
06.09 100km USA3rd Pine Creek Challenge 100 km 21:29:47 h28
2013
09.11 24h USA1st Operation Ultra 24 Hour Endurance Run 70.811 km18
07.09 100km USA2nd Pine Creek Challenge 100 km 18:30:38 h23
04.05 24h USA8th 24 Hour Adventure Trail Run 60.350 km38
23.03 50km USA25th The HAT Run 50K 7:52:35 h345
02.02 8h USA8th 8 Hour Adventure Trail Run 46.188 km70
2012
24.03 50km USA24th The HAT Run 50K 7:44:48 h336
2010
11.12 100mi USA1st The Bartram Forest 100 Mile Race 31:18:07 h16
20.11 50mi USA48th JFK 50 Mile 13:24:48 h969
2009
21.11 50mi USA47th JFK 50 Mile 13:11:13 h956
31.03 50km USA21th The HAT Run 50K 8:07:11 h378
2008
22.11 50mi USA46th JFK 50 Mile 12:39:46 h807
25.07 24h USA12th Around The Lake Ultra 24h 116.967 km21
10.05 50km USA27th Ice Age Trail 50 km Run 6:57:31 h93
2007
17.11 50mi USA45th JFK 50 Mile 12:18:39 h934
14.04 50mi USA15th Bull Run Run 50 Miler 12:48:18 h297
2006
18.11 50mi USA44th JFK 50 Mile 12:08:37 h858
2005
19.11 50mi USA43rd JFK 50 Mile 12:24:51 h819
02.04 100mi USA11th Umstead Endurance Run 100 Miles 27:58:02 h69
2004
20.11 50mi USA42nd JFK 50 Mile 11:17:05 h593
17.04 50mi USA12th Bull Run Run 50 Miler 11:55:15 h213
27.03 50km USA16th The HAT Run 50K 7:53:07 h315
2003
22.11 50mi USA41st JFK 50 Mile 11:24:46 h600
29.03 50km USA15th The HAT Run 50K 7:20:55 h227
2002
23.11 50mi USA40th JFK 50 Mile 11:50:25 h660
23.03 50km USA14th The HAT Run 50K 7:29:19 h249