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JT
John Tarkowski
MaleMichigan1997–2025
33
Total Finishes
7
Different Races
1
States (2%)
1:23:07
PR (6:21/mi)
1:32:58
Average
+0:36:09
Slower (first to last)
Medal House
2009
Dexter Ann Arbor Run
1:23:50
#56 overall#46 gender
2008
Dexter Ann Arbor Run
1:25:28
#46 overall#39 gender
2008
Martian Invasion of Races
1:25:45
#23 overall#23 gender
2007
Dexter Ann Arbor Run
1:24:56
#40 overall#34 gender
2007
Martian Invasion of Races
1:25:25
#29 overall#29 gender
2006
Dexter Ann Arbor Run
1:23:57
#61 overall#59 gender
2005
Dexter Ann Arbor Run
1:26:18
#60 overall#57 gender
2003
Dexter Ann Arbor Run
1:23:07
#65 overall#62 gender
2002
Dexter Ann Arbor Run
1:23:30
#50 overall#48 gender
2001
Dexter Ann Arbor Run
1:23:45
#39 overall#38 gender
1998
Dexter Ann Arbor Run
1:25:19
#70 overall#66 gender
1997
Dexter Ann Arbor Run
1:25:19
#72 overall#67 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2025 | Detroit Free Press MarathonDetroit | MI | 2:01:28 | #1516 |
| 2024 | Dexter Ann Arbor RunDexter | MI | 1:50:54 | #596 |
| 2023 | Dexter Ann Arbor RunDexter | MI | 1:47:43 | #355 |
| 2023 | Martian Invasion of RacesDearborn | MI | 1:47:50 | #109 |
| 2023 | VolkslaufeFrankenmuth | MI | 1:51:00 | #50 |
| 2019 | Detroit Free Press MarathonDetroit | MI | 1:46:25 | #661 |
| 2017 | Dexter Ann Arbor RunDexter | MI | 1:36:59 | #169 |
| 2015 | Dexter Ann Arbor RunDexter | MI | 1:34:04 | #145 |
| 2014 | Dexter Ann Arbor RunDexter | MI | 1:30:18 | #80 |
| 2014 | Detroit Free Press MarathonDetroit | MI | 1:30:36 | #75 |
| 2013 | Dexter Ann Arbor RunDexter | MI | 1:29:15 | #71 |
| 2013 | 15th Annual Rock CF Rivers Half Marathon & 5KGrosse Ile | MI | 1:30:50 | #43 |
| 2012 | 15th Annual Rock CF Rivers Half Marathon & 5KGrosse Ile | MI | 1:28:23 | #36 |
| 2012 | Ann Arbor MarathonAnn Arbor | MI | 1:29:39 | #7 |
| 2011 | Martian Invasion of RacesDearborn | MI | 1:30:05 | #63 |
| 2011 | 15th Annual Rock CF Rivers Half Marathon & 5KGrosse Ile | MI | 1:31:43 | #39 |
| 2010 | Dexter Ann Arbor RunDexter | MI | 1:23:49 | #50 |
| 2009 | Dexter Ann Arbor RunDexter | MI | 1:23:50 | #56 |
| 2009 | Martian Invasion of RacesDearborn | MI | 1:24:42 | #35 |
| 2009 | Brooksie Way Half Marathon and 5KAuburn Hills | MI | 1:27:08 | #39 |
| 2008 | Dexter Ann Arbor RunDexter | MI | 1:25:28 | #46 |
| 2008 | Martian Invasion of RacesDearborn | MI | 1:25:45 | #23 |
| 2007 | Dexter Ann Arbor RunDexter | MI | 1:24:56 | #40 |
| 2007 | Martian Invasion of RacesDearborn | MI | 1:25:25 | #29 |
| 2006 | Dexter Ann Arbor RunDexter | MI | 1:23:57 | #61 |
| 2005 | Dexter Ann Arbor RunDexter | MI | 1:26:18 | #60 |
| 2003 | Dexter Ann Arbor RunDexter | MI | 1:23:07 | #65 |
| 2002 | Dexter Ann Arbor RunDexter | MI | 1:23:30 | #50 |
| 2001 | Dexter Ann Arbor RunDexter | MI | 1:23:45 | #39 |
| 1998 | Dexter Ann Arbor RunDexter | MI | 1:25:19 | #70 |
| 1997 | Dexter Ann Arbor RunDexter | MI | 1:25:19 | #72 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
MIMichigan
31 races50-State Challenge
1/ 50 states
49 states to go