Justin Kousky
ID 98900
Born : 1980 Cat. M45 Ultrarunner since 2009 USA
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
55
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
15,7%
Rank quotient ?This runner's calculation uses 60 eligible race(s): Σ(rank − 1) = 379; Σ finishers = 2 421. 379 / 2 421 × 100 = 15.65%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed60
Km — ultra races5 099 km
> 100 km12
> 160 km7
> 200 km1
> 24h9
Longest race234,7 km
1st Backyard Squatch Ultra — 28/8/2021

Km per year (ultra races)

160
2 races
2022
331
4 races
2023
417
4 races
2024
471
6 races
2025
80
1 race
2026

Race types (share of distance)

Road24,3%
Trail66,1%
Elim.9,6%

Wins & podiums (ultra)

🏆 Win28
🏆 Win M28
🏅 Top 337
🏅 Top 3 M40
Longest winning streak14
Current streak0

Records

50 km3h48'37100 km7h34'3250 mi8h22'51100 mi17h41'566 h71,70 km12 h111,04 km24 h114,58 kmBackyard35 loops

HISTORY

60 race(s)
DateRacePerf.Rk
2026
19.09 50mi USA5th Squatchayanda Trail Festival (Wild Goose) 11:59:01 h20
2025
02.11 8h USA5th 8 Hours at the Farm 90.123 km1 🏆
13.09 30mi USA12th Shawangunk Ridge Trail 30-mile Run 8:50:10 h49
23.08 6h USA10th Jug End Loop 6-Hour Ultra 71.696 km1 🏆
28.06 12h USA2nd Brooksvale 12-Hour 111.044 km1 🏆
27.04 100km USA51st Jack Bristol Lake Waramaug 100km Ultra Marathon 7:34:32 h1 🏆
30.03 50km USA1st Sleeping Giant Trail Runs 5:12:47 h1 🏆
2024
22.06 54mi USA12th Manitou's Revenge Ultramarathon 10:24:28 h1 🏆
31.05 112mi USA7th Connecticut Ultra Traverse 112 Miles 21:53:34 h1 🏆
05.05 50km USA6th The Blue 2 Blue Challenge 5:29:34 h1 🏆
28.04 100km USA50th Jack Bristol Lake Waramaug 100km Ultra Marathon 8:01:33 h1 🏆
2023
11.11 50km USA1st Roxbury Marathon 3:48:37 h1 🏆
22.10 50km USA16th Bimblers Bluff 50k 4:30:34 h1 🏆
18.08 100mi USA2nd Jigger Johnson 100M 31:06:43 h1 🏆
29.07 6h USA8th Jug End Loop 6-Hour Ultra 70.489 km1 🏆
2022
10.09 60km USA6th Tunxis Trail Ultramarathon 6:04:47 h1 🏆
14.05 100km USA1st Highlands Trail Festival 100 km 14:50:00 h1 🏆
2021
28.08 Backyard Ultra USA1st Backyard Squatch Ultra 234.710 km (35h)2 🥈
26.06 54mi USA9th Manitou's Revenge Ultramarathon 11:05:18 h2 🥈
29.05 34h USA3rd Run Ragged Last Person Standing 169.624 km1 🏆
15.05 6h USA2nd Six Hours at The Reservoir 70.811 km1 🏆
08.05 10h USA4th CT Trailmixers Spring Fling 600 Trail Race 98.491 km1 🏆
17.04 50km USA12th Traprock 50k Ultramarathon 4:47:42 h2 🥈
2020
14.11 8h USA1st 8 Hours at the Brewery 8 Hour Race 88.513 km1 🏆
10.10 100mi USA2nd Midstate Massive 100 Mile Ultra Trail 19:39:06 h1 🏆
26.09 50km USA2nd The Blue 2 Blue Challenge 5:48:14 h1 🏆
01.02 30h USA2nd TARCtic Frozen Yeti Trail Races 88.513 km24
2019
02.11 50mi USA1st The Pachaug 50 Mile Trail Run 9:01:19 h1 🏆
19.10 100mi USA11th Ghost Train Rail Trail Races 100 Mile 17:41:56 h2 🥈
21.09 9h USA4th Forgotten Forest 9 Hour Ultra Marathon 90.091 km1 🏆
13.09 70mi USA6th Shawangunk Ridge Trail 70-mile Run 17:00:21 h2 🥈
16.08 24h USA5th Anchor Down Ultra 24 Hour Run 98.572 km48
03.08 50mi USA5th XTERRA Northeast Trail Run Series – Steep Rock 50M 8:55:49 h1 🏆
27.07 6h USA4th Jug End Loop 6-Hour Ultra 58.644 km3 🥉
29.06 30h USA2nd Forbidden Forest 30-Hour Ultra Run 161.497 km8
15.06 32h USA1st Run Ragged Last Person Standing 84.812 km7
01.06 6h USA2nd Outdoorfest Ultra Race 48.924 km9
18.05 24h USA11th 3 Days at the Fair 24 Hour Race 106.216 km27
28.04 50mi USA45th Lake Waramaug 50mi Ultra Marathon 8:22:51 h9
13.04 6h USA3rd Enchanted Forest 6 Hour Ultra Run 50.694 km9
23.02 50mi USA9th Febapple Frozen 50 Miles 8:39:36 h1 🏆
02.02 30h USA1st TARCtic Frozen Yeti Trail Races 96.560 km23
13.01 50km USA21st Recover from the Holidays 50K 4:11:50 h1 🏆
05.01 50km USA11th Watchung Winter 50 km Run 5:44:41 h7
2018
01.12 40mi USA8th TARC Fells Trail Ultra Winter 40 Mile 8:21:10 h6
04.11 50km USA1st Fall Back into the Trails 5:34:05 h3 🥉
20.10 75mi USA10th Ghost Train Rail Trail Race 75 Mile 13:44:35 h1 🏆
14.10 6h USA19th Fred von der Heydt Memorial 6 Hour 60th Birthday Run 61.155 km3 🥉
06.10 50mi USA6th Tesla Hertz Run 50 Miles 8:57:05 h3 🥉
30.09 35mi USA1st Nipmuck Trail Marathon 6:41:34 h6
15.09 30mi USA5th Shawangunk Ridge Trail 30-mile Run 7:05:05 h5
09.09 50km USA3rd Dirty Dozen 50k Trail Run 5:38:30 h9
2017
03.12 50km USA5th BUS Trail Mix-Up Run 50K 4:54:36 h13
12.11 6:33h USA2nd CT Trailmixers Fall Fling 400 Trail Race 54.717 km8
2011
13.11 6h USA3rd Rhode Island 6 Hour Ultra 65.202 km6
2010
05.06 50mi USA3rd Endurance Challenge - Washington D.C. Trail 50 Miles 9:10:06 h30
15.05 24h USA1st 3 Days at the Fair 24 Hour Race 114.581 km10
07.03 50km USA8th Caumsett Park 50K Lloyd Neck 3:49:15 h18
09.01 50km USA12th Fat Ass Race - GAC FA50 4:59:00 h1 🏆
2009
15.11 6h USA1st Rhode Island 6 Hour Ultra 52.165 km38