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CO
Colleen O'Brien
FemaleNew Jersey1988–2025
66
Total Finishes
44
Distinct Races
18
States (35%)
1:44:54
PR (8:00/mi)
2:15:30
Average
+0:23:41
Slower (first to last)
Medal House
2007
Greater St. Louis Marathon
1:51:44
#1047 overall#269 gender
2007
Kaiser Permanente San Francisco Half Marathon & 5K
2:48:53
#4621 overall#2200 gender
2007
Santa Cruz Half Marathon
2:51:08
#1391 overall#808 gender
2007
Napa to Sonoma Wine Country Half Marathon
3:00:04
#1442 overall#959 gender
2006
Greater St. Louis Marathon
1:59:26
#1902 overall#696 gender
2006
Life Time Chicago Half Marathon + 5K
2:07:38
#4601 overall#2092 gender
2006
Rock 'n' Roll Virgina Beach Half Marathon
2:16:17
#6974 overall#2972 gender
2006
2026 Anchorage Mayor's Marathon & Half Marathon
2:34:52
#698 overall#386 gender
2005
Greater St. Louis Marathon
2:08:00
#1794 overall#735 gender
2003
Run SF "Golden Gate City" 5K/10K/13.1
2:39:36
#1727 overall#868 gender
2002
Life Time Chicago Half Marathon + 5K
1:48:34
#926 overall#189 gender
1988
The Runners Den Scottsdale 1/2 Marathon & 5K
1:46:48
#54 overall#54 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2025 | The Notre Dame Holy HalfNotre Dame | IN | 1:50:46 | #384 |
| 2025 | Charlotte Craft Beer Half Marathon - Relay & 5 MilerCharlotte | NC | 2:10:16 | #580 |
| 2025 | Guthrie Wineglass Marathon, Wegmans Wineglass Half Marathon & Williams Toyota Wineglass 5KCorning | NY | 2:10:29 | #1123 |
| 2024 | Rehoboth Seashore Marathon and Half MarathonRehoboth Beach | DE | 2:03:05 | #739 |
| 2024 | Chicago 13.1Chicago | IL | 2:03:21 | #2922 |
| 2024 | Main Street Half Marathon & 4 Miler - HunterdonClinton | NJ | 2:08:17 | #149 |
| 2023 | Chicago 13.1Chicago | IL | 1:56:48 | #1588 |
| 2023 | Women's Half MarathonNew York | NY | 2:29:08 | #4005 |
| 2022 | JSRC RunAPaloozaAsbury Park | NJ | 2:07:26 | #511 |
| 2022 | Runapalooza Asbury ParkAsbury Park | NJ | 2:07:26 | #510 |
| 2020 | RunSedona EventsSedona | AZ | 2:22:48 | #564 |
| 2019 | Novo Nordisk New Jersey MarathonLong Branch | NJ | 2:08:15 | #1607 |
| 2018 | JSRC RunAPaloozaAsbury Park | NJ | 1:58:38 | #435 |
| 2018 | Runapalooza Asbury ParkAsbury Park | NJ | 1:58:39 | #447 |
| 2018 | United Airlines NYC HalfNew York | NY | 2:02:50 | #10228 |
| 2018 | E Murray Todd Half MarathonColts Neck | NJ | 2:10:17 | #432 |
| 2018 | TripleThreat Half Marathon & 5KRockport | MA | 2:16:03 | #349 |
| 2018 | Hamptons Marathon & Half MarathonEast Hampton | NY | 2:19:52 | #896 |
| 2018 | Fleet Feet Rochester Half Marathon | 5K | Kids 1/2 MileRochester | NY | 2:20:56 | #817 |
| 2018 | Liberty Waterfront Half Marathon and 5K RunJersey City | NJ | 2:34:47 | #1767 |
| 2018 | Rock 'n' Roll Half Marathon San FranciscoSan Francisco | CA | 3:21:28 | #4992 |
| 2017 | JSRC RunAPaloozaAsbury Park | NJ | 1:56:24 | #346 |
| 2017 | Runapalooza Asbury ParkAsbury Park | NJ | 1:56:24 | #339 |
| 2017 | Women's Half MarathonNew York | NY | 2:07:22 | #2477 |
| 2017 | Urban Wildland Half Marathon & 5K (Richfield, MN)Richfield | MN | 2:16:43 | #553 |
| 2017 | Cambridge Half Marathon + 5KCambridge | MA | 2:23:55 | #5196 |
| 2017 | Star Wars Half Marathon - The Dark SideLake Buena Vista | FL | 2:55:01 | #8137 |
| 2016 | Gasparilla Distance Classic Race WeekendTampa | FL | 1:50:18 | #809 |
| 2016 | Runner's World Half Marathon and FestivalBethlehem | PA | 2:02:38 | #763 |
| 2016 | 2027 Publix Fort Lauderdale A1A Marathon, Half Marathon, 6K & Kids of Love Run, & Celsius 5k Presented by ColavitaFort Lauderdale | FL | 3:33:48 | #4020 |
| 2015 | Florida Holiday HalfathonKissimmee | FL | 1:51:59 | #172 |
| 2015 | Gasparilla Distance Classic Race WeekendTampa | FL | 1:57:52 | #1355 |
| 2015 | Rock n Roll NashvilleNashville | TN | 2:09:28 | #4994 |
| 2015 | Capital City Half MarathonColumbus | OH | 2:24:06 | #4910 |
| 2015 | Seacoast Half MarathonPortsmouth | NH | 2:31:49 | #989 |
| 2015 | 2027 Publix Fort Lauderdale A1A Marathon, Half Marathon, 6K & Kids of Love Run, & Celsius 5k Presented by ColavitaFort Lauderdale | FL | 3:16:52 | #3953 |
| 2014 | Greater St. Louis MarathonSt. Louis | MO | 1:51:02 | #954 |
| 2014 | Caesar Rodney Half MarathonWilmington | DE | 2:11:01 | #885 |
| 2014 | Women's Half MarathonNew York | NY | 2:18:04 | #3606 |
| 2014 | 2027 Publix Fort Lauderdale A1A Marathon, Half Marathon, 6K & Kids of Love Run, & Celsius 5k Presented by ColavitaFort Lauderdale | FL | 3:21:19 | #3228 |
| 2013 | Greater St. Louis MarathonSt. Louis | MO | 1:55:15 | #1430 |
| 2013 | Liberty Waterfront Half Marathon and 5K RunJersey City | NJ | 1:57:19 | #1155 |
| 2013 | Life Time Chicago Half Marathon + 5KChicago | IL | 2:01:55 | #3234 |
| 2013 | United Airlines NYC HalfNew York | NY | 2:07:32 | #9136 |
| 2013 | Shamrock MarathonVirginia Beach | VA | 2:12:41 | #3280 |
| 2013 | Novo Nordisk New Jersey MarathonLong Branch | NJ | 2:20:11 | #3836 |
| 2013 | Navy Air Force Half Marathon & Navy 5-MilerWashington | DC | 2:35:31 | #2237 |
| 2013 | Philadelphia MarathonPhiladelphia | PA | 2:47:06 | #11177 |
| 2013 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 3:17:11 | #13443 |
| 2012 | Novo Nordisk New Jersey MarathonLong Branch | NJ | 1:51:43 | #1088 |
| 2012 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:54:21 | #2737 |
| 2012 | Runner's World Half Marathon and FestivalBethlehem | PA | 1:57:55 | #1241 |
| 2012 | Indianapolis Monumental MarathonIndianapolis | IN | 2:04:23 | #2249 |
| 2012 | Bird-in-Hand Half Marathon, 5K, and Kid's Fun RunBird In Hand | PA | 2:21:23 | #662 |
| 2012 | Unite Half Marathon & 8K RunNew Brunswick | NJ | 2:27:47 | #2306 |
| 2012 | Navy Air Force Half Marathon & Navy 5-MilerWashington | DC | 2:33:17 | #1531 |
| 2012 | North Shore ClassicHighland Park | IL | 2:33:48 | #1926 |
| 2012 | Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan Francisco | CA | 2:53:42 | #6590 |
| 2011 | Boston's Run To RememberBoston | MA | 2:10:28 | #2937 |
| 2009 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:55:22 | #2832 |
| 2008 | Greater St. Louis MarathonSt. Louis | MO | 1:44:54 | #725 |
| 2008 | Austin MarathonAustin | TX | 2:10:47 | #2887 |
| 2007 | Greater St. Louis MarathonSt. Louis | MO | 1:51:44 | #1047 |
| 2007 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:48:53 | #4621 |
| 2007 | Santa Cruz Half MarathonSanta Cruz | CA | 2:51:08 | #1391 |
| 2007 | Napa to Sonoma Wine Country Half MarathonSonoma | CA | 3:00:04 | #1442 |
| 2006 | Greater St. Louis MarathonSt. Louis | MO | 1:59:26 | #1902 |
| 2006 | Life Time Chicago Half Marathon + 5KChicago | IL | 2:07:38 | #4601 |
| 2006 | Rock 'n' Roll Virgina Beach Half MarathonVirginia Beach | VA | 2:16:17 | #6974 |
| 2006 | 2026 Anchorage Mayor's Marathon & Half MarathonAnchorage | AK | 2:34:52 | #698 |
| 2005 | Greater St. Louis MarathonSt. Louis | MO | 2:08:00 | #1794 |
| 2003 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 2:39:36 | #1727 |
| 2002 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:48:34 | #926 |
| 1988 | The Runners Den Scottsdale 1/2 Marathon & 5KScottsdale | AZ | 1:46:48 | #54 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
NJNew Jersey
14 racesILIllinois
9 racesNYNew York
8 racesFLFlorida
7 racesCACalifornia
6 racesMOMissouri
6 racesPAPennsylvania
4 racesMAMassachusetts
3 racesAZArizona
2 racesDCDistrict of Columbia
2 racesDEDelaware
2 racesINIndiana
2 racesVAVirginia
2 racesAKAlaska
1 raceMNMinnesota
1 raceOHOhio
1 raceMEMaine
0 racesMIMichigan
0 races50-State Challenge
18/ 51 states + DC
33 states to go