JK🇺🇸
Born
1984-11-19Sponsor
La Sportiva
UTMB
725Wins
3Podiums
6
American ultrarunner and data scientist from Morgan County, Tennessee, who grew up across the street from the Barkley Marathons course. One of only two people to have finished the Barkley three times, Kelly is equally accomplished at multi-day endurance challenges, holding FKTs on the Pennine Way and Wainwrights 214 Peaks, and winning the Winter Spine Race.
Upcoming Races
2026
1
race
Race Results
2026
2
races
161km
20,000m+
Jan 11
431km
10,732m+
2025
3
races
Sep 14
330km
24,000m+
161km
20,000m+
Completed fun run (3 loops) in 39:50 as only
fun run finisher
Jan 12
431km
10,732m+
2024
4
races
107km
4,800m+
Sep 8
330km
24,000m+
161km
20,000m+
Third Barkley finish - became second
three-time finisher in history
2023
3
races
Sep 10
330km
24,000m+
161km
20,000m+
Second Barkley finish - became third person
to finish twice
Bandera 100K/100K
Jan 7
100km
1,720m+
2022
1
race
161km
10,000m+
2021
1
race
Sep 12
330km
24,000m+
2020
1
race1
win
Jan 12
431km
10,732m+
Career Highlights
2026: DNF at Barkley Marathons and Winter Spine
Race
2025: Completed Barkley Marathons fun run (3 loops)
as only finisher; Tor des Geants 22nd (88:28:53); 5th
at Winter Spine Race (87:55:32)
2024: Third Barkley Marathons finish (59:15:38);
Festival des Templiers Endurance Trail 15th
(10:40:28); DNF at Winter Spine Race and Tor des
Geants
2023: Second Barkley Marathons finish (58:42:23);
Long Trail FKT; Tor des Geants 16th (85:27:00);
Bandera 100K 7th (9:10:00)
2022: Wainwrights 214 Peaks FKT (5d 12h 14m);
Hardrock 100 10th (31:29:32)
2021: Pennine Way FKT north to south (58:04); DNF at
Tor des Geants
2020: Won Winter Spine Race (87:53:57); first man to
complete the Grand Round
2019: Won The Franklins 200-mile race (60:53:12); Tor
des Geants 16th (92:52:54); Lavaredo Ultra Trail 29th
(15:41:17); DNF at Andorra Ultra Trail; moved to the
UK
2018: Bandera 100K 10th (9:18:53)
2017: 15th person to finish the Barkley Marathons
(59:30:53); RRCA National Ultra Championship winner at
Lookout Mountain 50 Miler
2016: Hellgate 100 10th (12:45:20)
2015: Lookout Mountain 50 Mile 3rd (6:59:27)
Key Achievements
Barkley Marathons Finisher (2017, 2023, 2024) -
Second three-time finisher in history
Winter Spine Race Winner (2020) - 268 miles along the
Pennine Way in 87:53:57
Pennine Way FKT (2021) - North to south in
58:04
First man to complete the Grand Round (2020) - Bob
Graham, Paddy Buckley, and Ramsay rounds linked by
cycling
Wainwrights 214 Peaks FKT (2022) - 523km with 36,000m
ascent in 5 days, 12 hours, 14 minutes
Long Trail (Vermont) FKT (2023) - 249 miles in 4
days, 4 hours
Notable Traits
Grew up in Morgan County, Tennessee, home of the
Barkley Marathons
PhD in electrical engineering and machine learning
from Carnegie Mellon University
CTO of Envelop Risk Analytics, a cyber underwriting
firm
Father of four; lived in the UK near Bristol from
2019 to 2022
Blogs at Random Forest Runner, a reference to his
machine learning background
La Sportiva Mountain Running Ambassador