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BO
Brendan O'Brien
MaleMassachusetts2002–2025
52
Total Finishes
37
Distinct Races
15
States (29%)
1:23:23
PR (6:22/mi)
1:55:17
Average
+1:12:09
Slower (first to last)
Medal House
2011
Skunk Cabbage Classic 10K & Half Marathon
1:42:39
#121 overall#90 gender
2011
Parks Half Marathon
1:51:04
#577 overall#416 gender
2011
Monterey Bay Half Marathon
1:58:37
#1438 overall#856 gender
2011
Run SF "Golden Gate City" 5K/10K/13.1
2:04:41
#1160 overall#750 gender
2010
Skunk Cabbage Classic 10K & Half Marathon
1:44:34
#145 overall#112 gender
2009
Philadelphia Marathon
1:45:29
#747 overall#514 gender
2008
Parks Half Marathon
1:49:25
#432 overall#320 gender
2006
Parks Half Marathon
1:48:13
#269 overall#200 gender
2004
NYRR Fred Lebow Half Marathon
1:39:12
#485 overall#445 gender
2004
Rock N Fly Half Marathon
1:44:28
#115 overall#93 gender
2003
Run SF "Golden Gate City" 5K/10K/13.1
2:25:35
#1511 overall#795 gender
2002
NYRR Fred Lebow Half Marathon
1:38:51
#349 overall#316 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2025 | Twin Lobster Half MarathonGloucester | MA | 1:33:36 | #28 |
| 2025 | NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklyn | NY | 1:42:28 | #2401 |
| 2025 | Vermont Sun Triathlon and Run SeriesSalisbury | VT | 1:54:22 | #41 |
| 2025 | Roadrunner Race for the ArtsSanta Rosa | NM | 2:51:00 | #44 |
| 2024 | Hyannis MarathonHyannis | MA | 1:39:21 | #93 |
| 2024 | Credit Union Cherry Blossom Ten MileWashington | DC | 1:45:35 | #187 |
| 2024 | Detroit Free Press MarathonDetroit | MI | 1:59:30 | #271 |
| 2024 | 2026 Gulf Beach Half MarathonMilford | CT | 2:29:36 | #588 |
| 2024 | Fountainhead Half Marathon and 10K++ Trail RunFairfax Station | VA | 2:37:22 | #60 |
| 2023 | SLTC Frostbite SeriesSaint Louis | MO | 1:23:23 | #18 |
| 2022 | Hyannis MarathonHyannis | MA | 1:32:53 | #31 |
| 2022 | Chasing the Unicorn Marathon & Alternative Half MarathonWashington Crossing | PA | 1:53:35 | #31 |
| 2021 | Portland MarathonPortland | OR | 2:07:46 | #984 |
| 2021 | Fountainhead Half Marathon and 10K++ Trail RunFairfax Station | VA | 2:56:46 | #78 |
| 2019 | New Bedford Half MarathonNew Bedford | MA | 1:29:03 | #325 |
| 2018 | Hyannis MarathonHyannis | MA | 1:36:19 | #113 |
| 2018 | Detroit Free Press MarathonDetroit | MI | 1:45:54 | #164 |
| 2018 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:55:44 | #1476 |
| 2018 | Millinocket MarathonMillinocket | ME | 2:03:32 | #343 |
| 2017 | Bucks County Alternative Half MarathonWashington Crossing | PA | 1:36:27 | #13 |
| 2017 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 1:37:02 | #126 |
| 2017 | Hyannis MarathonHyannis | MA | 1:41:17 | #260 |
| 2017 | Gettysburg Battlefield MarathonGettysburg | PA | 1:45:48 | #30 |
| 2017 | Rock N Fly Half MarathonPensacola | FL | 1:58:50 | #192 |
| 2017 | Shipyard Old Port Half MarathonPortland | ME | 2:20:19 | #1698 |
| 2016 | United Airlines NYC HalfNew York | NY | 1:47:20 | #4303 |
| 2016 | Detroit Free Press MarathonDetroit | MI | 1:58:30 | #270 |
| 2016 | Boston's Run To RememberBoston | MA | 2:08:13 | #3525 |
| 2015 | Rock 'n' Roll Washington DCWashington | DC | 1:43:24 | #1113 |
| 2015 | Golden Gate HeadlandsStinson Beach | CA | 1:46:36 | #4 |
| 2015 | B.A.A. Half MarathonBoston | MA | 1:57:33 | #2429 |
| 2015 | South Shore *3 Beach Minimum" Half MarathonHull | MA | 2:22:07 | #227 |
| 2014 | Detroit Free Press MarathonDetroit | MI | 1:40:01 | #63 |
| 2014 | B.A.A. Half MarathonBoston | MA | 2:07:08 | #3676 |
| 2013 | Brazen Wildcat CanyonEl Sobrante | CA | 1:45:10 | #4 |
| 2013 | Catharine Vally Half MarathonWatkins Glen | NY | 1:47:36 | #117 |
| 2013 | Fairfield Road RacesFairfield | CT | 1:51:51 | #830 |
| 2013 | Virginia Wine Country Half MarathonHillsboro | VA | 2:22:03 | #1077 |
| 2012 | Buffalo Marathon WeekendBuffalo | NY | 1:46:41 | #361 |
| 2012 | WildcatEl Sobrante | CA | 1:47:34 | #3 |
| 2012 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:55:50 | #2997 |
| 2012 | Rocky Ridgesan Ramon | CA | 2:15:47 | #20 |
| 2011 | Skunk Cabbage Classic 10K & Half MarathonIthaca | NY | 1:42:39 | #121 |
| 2011 | Parks Half MarathonRockville | MD | 1:51:04 | #577 |
| 2011 | Monterey Bay Half MarathonMonterey | CA | 1:58:37 | #1438 |
| 2011 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 2:04:41 | #1160 |
| 2010 | Skunk Cabbage Classic 10K & Half MarathonIthaca | NY | 1:44:34 | #145 |
| 2009 | Philadelphia MarathonPhiladelphia | PA | 1:45:29 | #747 |
| 2008 | Parks Half MarathonRockville | MD | 1:49:25 | #432 |
| 2006 | Parks Half MarathonRockville | MD | 1:48:13 | #269 |
| 2004 | NYRR Fred Lebow Half MarathonNew York | NY | 1:39:12 | #485 |
| 2004 | Rock N Fly Half MarathonPensacola | FL | 1:44:28 | #115 |
| 2003 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 2:25:35 | #1511 |
| 2002 | NYRR Fred Lebow Half MarathonNew York | NY | 1:38:51 | #349 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
MAMassachusetts
10 racesCACalifornia
8 racesNYNew York
8 racesPAPennsylvania
5 racesMDMaryland
3 racesVAVirginia
3 racesCTConnecticut
2 racesDCDistrict of Columbia
2 racesFLFlorida
2 racesMEMaine
2 racesILIllinois
1 raceMOMissouri
1 raceOROregon
1 raceIAIowa
0 racesNJNew Jersey
0 races50-State Challenge
15/ 51 states + DC
36 states to go