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KS
Karen Serafin
FemaleMassachusetts2004–2026
33
Total Finishes
18
Different Races
2
States (4%)
1:35:25
PR (7:17/mi)
1:49:16
Average
+0:47:10
Slower (first to last)
Medal House
2011
2nd Annual Half Of Quincy
1:38:12
#204 overall#42 gender
2011
Hyannis Marathon
1:40:30
#358 overall#94 gender
2011
Hyannis Marathon, Half Marathon, 10K & Marathon Relay
1:40:30
#357 overall#92 gender
2010
B.A.A. Half Marathon
1:35:25
#308 overall#49 gender
2010
New Bedford Half Marathon
1:39:25
#650 overall#130 gender
2009
New Bedford Half Marathon
1:39:53
#722 overall#170 gender
2008
New Bedford Half Marathon
1:47:14
#785 overall#183 gender
2008
B.A.A. Half Marathon
1:58:40
#806 overall#801 gender
2007
Seacoast Half Marathon
1:51:06
#261 overall
2006
B.A.A. Half Marathon
1:52:38
#1368 overall#478 gender
2005
New Bedford Half Marathon
1:44:17
#652 overall#122 gender
2004
B.A.A. Half Marathon
1:50:36
#963 overall#319 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Cowtown Marathon, Half Marathon and Ultra MarathonFort Worth | TX | 2:37:46 | #6034 |
| 2026 | The 2026 Cowtown Race WeekendFort Worth | TX | 2:37:46 | #6035 |
| 2025 | Cowtown Marathon, Half Marathon and Ultra MarathonFort Worth | TX | 2:18:06 | #3574 |
| 2024 | Pumpkin Spice Half Marathon, 10K, and 5KFort Worth | TX | 2:13:23 | #279 |
| 2016 | Cambridge Half Marathon + 5KCambridge | MA | 1:40:40 | #693 |
| 2016 | New Bedford Half MarathonNew Bedford | MA | 1:41:18 | #702 |
| 2016 | B.A.A. Half MarathonBoston | MA | 1:47:08 | #1132 |
| 2015 | New Bedford Half MarathonNew Bedford | MA | 1:56:07 | #1210 |
| 2015 | New Bedford Half Marathon | — | 1:56:07 | #1209 |
| 2014 | New Bedford Half MarathonNew Bedford | MA | 1:43:51 | #903 |
| 2014 | NYRR Fred Lebow Half MarathonNew York | NY | 1:55:25 | #1567 |
| 2013 | New Bedford Half MarathonNew Bedford | MA | 1:39:02 | #704 |
| 2013 | New Bedford Half Marathon | — | 1:39:02 | #697 |
| 2013 | Philadelphia MarathonPhiladelphia | PA | 1:39:11 | #713 |
| 2012 | B.A.A. Half MarathonBoston | MA | 1:36:37 | #474 |
| 2012 | 12th Annual B.a.a. Half Marathon | — | 1:36:37 | #474 |
| 2012 | Hyannis MarathonHyannis | MA | 1:39:58 | #430 |
| 2012 | Hyannis Marathon, Half Marathon, Marathon Relay | — | 1:39:58 | #429 |
| 2012 | New Bedford Half MarathonNew Bedford | MA | 1:44:09 | #863 |
| 2012 | New Bedford Half Marathon | — | 1:44:09 | #849 |
| 2011 | 2nd Annual Half Of Quincy | — | 1:38:12 | #204 |
| 2011 | Hyannis MarathonHyannis | MA | 1:40:30 | #358 |
| 2011 | Hyannis Marathon, Half Marathon, 10K & Marathon Relay | — | 1:40:30 | #357 |
| 2011 | Buffalo Marathon WeekendBuffalo | NY | 1:41:08 | #146 |
| 2010 | B.A.A. Half MarathonBoston | MA | 1:35:25 | #308 |
| 2010 | New Bedford Half MarathonNew Bedford | MA | 1:39:25 | #650 |
| 2009 | New Bedford Half MarathonNew Bedford | MA | 1:39:53 | #722 |
| 2008 | New Bedford Half MarathonNew Bedford | MA | 1:47:14 | #785 |
| 2008 | B.A.A. Half MarathonBoston | MA | 1:58:40 | #806 |
| 2007 | Seacoast Half MarathonPortsmouth | NH | 1:51:06 | #261 |
| 2006 | B.A.A. Half MarathonBoston | MA | 1:52:38 | #1368 |
| 2005 | New Bedford Half MarathonNew Bedford | MA | 1:44:17 | #652 |
| 2004 | B.A.A. Half MarathonBoston | MA | 1:50:36 | #963 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
MAMassachusetts
18 racesTXTexas
4 races50-State Challenge
2/ 50 states
48 states to go