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JK
Jack Klein
MaleNew York2006–2026
18
Total Finishes
11
Different Races
6
States (12%)
1:49:10
PR (8:20/mi)
2:05:31
Average
-0:14:22
Faster (first to last)
Medal House
2016
LONG ISLAND MARATHON FESTIVAL
1:58:23
#883 overall
2015
LONG ISLAND MARATHON FESTIVAL
1:57:03
#833 overall
2015
Monterey Bay Half Marathon
2:33:12
#4573 overall#1889 gender
2014
Hamptons Marathon & Half Marathon
1:55:11
#411 overall#229 gender
2014
LONG ISLAND MARATHON FESTIVAL
2:05:15
#1733 overall
2009
B&A Trail Marathon and Half Marathon
2:21:59
#489 overall#285 gender
2008
Chambersburg Half Marathon
2:06:26
#213 overall#152 gender
2007
Caesar Rodney Half Marathon
2:06:10
#928 overall#700 gender
2006
B&A Trail Marathon and Half Marathon
2:03:32
#390 overall#231 gender
2006
YMCA Harrisburg Half & 10K
2:04:32
#410 overall#103 gender
2006
Baltimore Running Festival
2:07:11
#1837 overall#1038 gender
2006
Philadelphia Marathon
2:11:03
#1334 overall#711 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Life Time 305 Half Marathon and 5K Presented by Baptist HealthMiami Beach | FL | 1:49:10 | #420 |
| 2025 | Philadelphia MarathonPhiladelphia | PA | 1:53:48 | #2684 |
| 2018 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 2:05:50 | #908 |
| 2017 | Hamptons Marathon & Half MarathonEast Hampton | NY | 2:05:05 | #376 |
| 2017 | The LESS Popular Brooklyn Half Marathon!Brooklyn | NY | 2:05:34 | #15212 |
| 2016 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 1:58:23 | #883 |
| 2016 | Hamptons Marathon & Half MarathonEast Hampton | NY | 2:00:53 | #512 |
| 2016 | The LESS Popular Brooklyn Half Marathon!Brooklyn | NY | 2:02:41 | #13191 |
| 2015 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 1:57:03 | #833 |
| 2015 | Monterey Bay Half MarathonMonterey | CA | 2:33:12 | #4573 |
| 2014 | Hamptons Marathon & Half MarathonEast Hampton | NY | 1:55:11 | #411 |
| 2014 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 2:05:15 | #1733 |
| 2009 | B&A Trail Marathon and Half MarathonSeverna Park | MD | 2:21:59 | #489 |
| 2008 | Chambersburg Half MarathonChambersburg | PA | 2:06:26 | #213 |
| 2007 | Caesar Rodney Half MarathonWilmington | DE | 2:06:10 | #928 |
| 2006 | B&A Trail Marathon and Half MarathonSeverna Park | MD | 2:03:32 | #390 |
| 2006 | YMCA Harrisburg Half & 10KHarrisburg | PA | 2:04:32 | #410 |
| 2006 | Baltimore Running FestivalBaltimore | MD | 2:07:11 | #1837 |
| 2006 | Philadelphia MarathonPhiladelphia | PA | 2:11:03 | #1334 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
NYNew York
9 racesPAPennsylvania
4 racesMDMaryland
3 racesCACalifornia
1 raceDEDelaware
1 raceCTConnecticut
0 races50-State Challenge
6/ 51 states + DC
45 states to go