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DO
David O'Brien
MaleMassachusetts1997–2025
72
Total Finishes
51
Distinct Races
17
States (33%)
1:36:26
PR (7:22/mi)
2:16:56
Average
+0:18:39
Slower (first to last)
Medal House
2006
Rock 'n' Roll Chicago Half Marathon
1:36:26
#622 overall#524 gender
2005
2025 500 Festival Running Events
3:13:20
#20428 overall#11147 gender
2005
Urban Cow Half Marathon
3:32:00
#1265 overall#535 gender
2004
Rock 'n' Roll Virgina Beach Half Marathon
2:06:09
#3725 overall#2376 gender
2004
Mistletoe Run
2:09:09
#485 overall#295 gender
2004
Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO
3:34:02
#1690 overall#769 gender
2003
Carlsbad Marathon
1:53:54
#1264 overall#849 gender
2003
Rock 'n' Roll Virgina Beach Half Marathon
3:05:05
#10762 overall#5021 gender
2003
Sunburst Races - South Bend
3:29:04
#907 overall#545 gender
1999
Maple Leaf Half Marathon
1:58:47
#212 overall#154 gender
1998
Covered Bridges Half Marathon
1:37:27
#337 overall#292 gender
1997
2025 500 Festival Running Events
2:19:00
#8455 overall#6126 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2025 | Zip Code 07662 MarathonRochelle Park | NJ | 2:31:40 | #36 |
| 2025 | The Jersey City Spring Half Marathon, 10K, 5KJersey City | NJ | 2:37:39 | #169 |
| 2024 | Zip Code 07662 MarathonRochelle Park | NJ | 2:28:48 | #56 |
| 2024 | Twin Lobster Half MarathonGloucester | MA | 2:30:44 | #558 |
| 2023 | Lake Placid Marathon and Half and 10KLake Placid | NY | 1:45:21 | #59 |
| 2023 | Fairfield Road RacesFairfield | CT | 1:54:34 | #649 |
| 2023 | Jersey Shore Half Marathon and 2 Mile RunHighlands | NJ | 1:59:27 | #233 |
| 2023 | Boston's Run To RememberBoston | MA | 2:15:56 | #2289 |
| 2023 | Cambridge Half Marathon + 5KCambridge | MA | 2:25:10 | #4608 |
| 2023 | Hapalua Hawaii's Half MarathonHonolulu | HI | 2:44:17 | #3432 |
| 2022 | Goldfields Pipeline MarathonCoolgardie | WA | 1:54:09 | #20 |
| 2022 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:00:52 | #2405 |
| 2022 | Love Run Half MarathonPhiladelphia | PA | 2:28:52 | #4856 |
| 2022 | Harborside Half Marathon & 5KNewburyport | MA | 2:33:34 | #566 |
| 2021 | New Hampshire Marathon, 10K, and 5K WalkBristol | NH | 2:09:41 | #91 |
| 2019 | Boston's Run To RememberBoston | MA | 2:08:58 | #2234 |
| 2019 | Livingston Manor Half Marathon & 5kLivingston Manor | NY | 2:14:10 | #114 |
| 2018 | Boston's Run To RememberBoston | MA | 1:51:16 | #1011 |
| 2018 | Naperville Trails Half Marathon & 10KWheaton | IL | 2:04:26 | #266 |
| 2018 | St. Jude Memphis Marathon WeekendMemphis | TN | 2:40:16 | #4981 |
| 2017 | Newburyport Half Marathon and RelayNewburyport | MA | 1:47:08 | #320 |
| 2017 | Hyannis MarathonHyannis | MA | 2:04:41 | #963 |
| 2017 | Boston's Run To RememberBoston | MA | 2:06:20 | #2432 |
| 2016 | Maine Marathon, Half Marathon and Marathon RelayPortland | ME | 1:54:19 | #540 |
| 2016 | South Shore Half Marathon and 5KHanover | MA | 1:54:34 | #418 |
| 2016 | HBF Run for a ReasonPerth | WA | 1:54:43 | #1066 |
| 2016 | Boston's Run To RememberBoston | MA | 2:01:28 | #2662 |
| 2016 | Newburyport Half Marathon and RelayNewburyport | MA | 2:03:52 | #1168 |
| 2015 | Baystate MarathonLowell | MA | 1:47:59 | #323 |
| 2015 | South Shore Half Marathon and 5KHanover | MA | 1:51:44 | #357 |
| 2015 | Rockfest Half MarathonHampton Beach | NH | 1:55:25 | #1150 |
| 2015 | Philadelphia MarathonPhiladelphia | PA | 1:58:42 | #3381 |
| 2015 | B.A.A. Half MarathonBoston | MA | 2:10:19 | #4052 |
| 2015 | Winter Warrior Half Marathon, Quarter Marathon & Half Marathon RelayRochester | NY | 2:39:07 | #652 |
| 2014 | Novo Nordisk New Jersey MarathonLong Branch | NJ | 1:46:18 | #441 |
| 2014 | Boston's Run To RememberBoston | MA | 1:53:16 | #1889 |
| 2014 | South Shore Half Marathon and 5KHanover | MA | 1:55:17 | #591 |
| 2014 | Newburyport Half Marathon and RelayNewburyport | MA | 2:00:26 | #1346 |
| 2014 | Boston's Run To RememberBoston | MA | 2:00:48 | #3006 |
| 2014 | Rochester Regional Health Flower City ChallengeRochester | NY | 2:04:01 | #1127 |
| 2014 | Empire State Half Marathon & 5kCongers | NY | 2:07:17 | #532 |
| 2014 | Race to Robie CreekBoise | ID | 2:07:53 | #580 |
| 2013 | Newburyport Half Marathon and RelayNewburyport | MA | 1:51:43 | #384 |
| 2013 | Liberty Waterfront Half Marathon and 5K RunJersey City | NJ | 1:59:35 | #1280 |
| 2012 | Boston's Run To RememberBoston | MA | 1:53:38 | #1409 |
| 2012 | Empire State Half Marathon & 5kCongers | NY | 2:03:34 | #633 |
| 2011 | Gobbler Grind Marathon, Half Marathon, 10K & 5KOverland Park | KS | 2:03:12 | #559 |
| 2011 | Boston's Run To RememberBoston | MA | 2:04:31 | #2277 |
| 2011 | Urban Cow Half MarathonSacramento | CA | 3:18:58 | #3351 |
| 2009 | Air Force MarathonDayton | OH | 1:49:51 | #671 |
| 2009 | Mohawk Hudson River MarathonUnknown | NY | 1:54:33 | #284 |
| 2008 | Caesar Rodney Half MarathonWilmington | DE | 1:52:58 | #647 |
| 2008 | Flying Pig Pump and RunCincinnati | OH | 1:56:37 | #1455 |
| 2008 | Shamrock'n Half MarathonSacramento | CA | 3:11:12 | #2455 |
| 2008 | Urban Cow Half MarathonSacramento | CA | 3:13:53 | #2096 |
| 2008 | Davis StampedeDavis | CA | 3:18:01 | #566 |
| 2008 | Rock n Roll NashvilleNashville | TN | 3:29:04 | #19611 |
| 2007 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:47:33 | #2968 |
| 2007 | Caesar Rodney Half MarathonWilmington | DE | 1:47:56 | #514 |
| 2007 | Shamrock'n Half MarathonSacramento | CA | 3:23:17 | #2038 |
| 2007 | Jacksonville Bank Marathon, Half MarathonJacksonville | FL | 3:23:59 | #1278 |
| 2006 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 1:36:26 | #622 |
| 2006 | Baystate MarathonLowell | MA | 1:41:46 | #178 |
| 2006 | Rock 'n' Roll Virgina Beach Half MarathonVirginia Beach | VA | 1:55:23 | #2642 |
| 2006 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:57:13 | #4123 |
| 2005 | 2025 500 Festival Running EventsIndianapolis | IN | 3:13:20 | #20428 |
| 2005 | Urban Cow Half MarathonSacramento | CA | 3:32:00 | #1265 |
| 2004 | Rock 'n' Roll Virgina Beach Half MarathonVirginia Beach | VA | 2:06:09 | #3725 |
| 2004 | Mistletoe RunWinston Salem | NC | 2:09:09 | #485 |
| 2004 | Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan Francisco | CA | 3:34:02 | #1690 |
| 2003 | Carlsbad MarathonCarlsbad | CA | 1:53:54 | #1264 |
| 2003 | Rock 'n' Roll Virgina Beach Half MarathonVirginia Beach | VA | 3:05:05 | #10762 |
| 2003 | Sunburst Races - South BendSouth Bend | IN | 3:29:04 | #907 |
| 1999 | Maple Leaf Half MarathonManchester | VT | 1:58:47 | #212 |
| 1998 | Covered Bridges Half MarathonWoodstock | VT | 1:37:27 | #337 |
| 1997 | 2025 500 Festival Running EventsIndianapolis | IN | 2:19:00 | #8455 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
MAMassachusetts
23 racesCACalifornia
8 racesNYNew York
7 racesNJNew Jersey
6 racesPAPennsylvania
5 racesINIndiana
3 racesILIllinois
2 racesOHOhio
2 racesCTConnecticut
1 raceFLFlorida
1 raceHIHawaii
1 raceIDIdaho
1 raceKSKansas
1 raceMEMaine
1 raceNCNorth Carolina
1 raceALAlabama
0 racesMOMissouri
0 races50-State Challenge
17/ 51 states + DC
34 states to go