Jack Kostelnik (M27)
2025
2 Races | 96 mi.NYC Trail Mix
Nov 15th 2025
| Staten Island, NY
Distance
50 Miles
Overall
18
/ 66
Division (M)
15
/ 57
9:48:11
Last Man Standing Ultramarathon
Aug 30th 2025
| New Gloucester, ME
Duration
Backyard
Overall
78
/ 121
Division (M)
64
/ 91
46.2
2023
1 Race | 31 mi.Big Brad Ultras
Oct 8th 2023
| Pownal, ME
Distance
50 KM
Overall
9
/ 33
Division (M)
6
/ 27
6:55:59
3
Races
2y 1m 9d
Longevity
127
Lifetime Miles
Personal Bests
50k
(1)
6:55:59
2023
50m
(1)
9:48:11
2025
Backyard
(1)
46.2
2025
Distance by Year
2025
96
Miles
2 Races
2023
31
Miles
1 Race