HalfRuns
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Elizabeth O'Brien

FemaleMichigan1993–2026

79

Total Finishes

60

Distinct Races

22

States (43%)

1:32:56

PR (7:06/mi)

2:17:42

Average

+0:32:09

Slower (first to last)

Medal House

2007

Kaiser Permanente San Francisco Half Marathon & 5K

1:52:03
#1650 overall#446 gender
2006

Cleveland Marathon & Half Marathon

2:01:24
#962 overall#358 gender
2005

Fairfield Road Races

1:48:28
#449 overall#84 gender
2004

Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K

1:43:57
#305 overall#57 gender
2004

Rock 'n' Roll Virgina Beach Half Marathon

1:49:36
#1273 overall#326 gender
2004

Gobbler Grind Marathon, Half Marathon, 10K & 5K

2:36:32
#578 overall#334 gender
2003

Canyonlands Half Marathon

1:53:54
#885 overall#290 gender
2003

Rock 'n' Roll Virgina Beach Half Marathon

1:59:38
#2387 overall#790 gender
2001

Rock ‘n’ Roll Philadelphia Half Marathon

1:48:14
#2298 overall#499 gender
1997

2025 500 Festival Running Events

3:42:07
#15518 overall#7133 gender
1994

The LESS Popular Brooklyn Half Marathon!

2:02:23
#780 overall#138 gender
1993

Women's Half Marathon

1:58:20
#268 overall#268 gender

Performance Timeline

PR 1:32:561993199419972001200320032004200420042005200620072007200720082008200920092010201120112011201120122012201220122012201320132013201320132013201320132014201420142014201420142015201520152015201520152015201520162016201620162017201720172018201820182018201820182019201920192019202020212022202220222022202220232023202420242024202420252025202520252025202520262026

Complete Race Log

YearRaceStateTimePlace
2026Newport News One City MarathonNewport NewsVA2:23:26#510
2026VICTORY RACES - Marathon, Half, and 5KHillsdaleIN2:30:29#26
20252025 500 Festival Running EventsIndianapolisIN2:32:53#10691
20252027 Walt Disney World® Marathon WeekendOrlandoFL2:33:57#3351
2025Women's Running Festival featuring a Half Marathon, 10K, & 5KCarmelIN2:37:16#252
2025Capital City River RunLansingMI3:03:04#654
2025Capital City River RunLansingMI3:03:05#654
2025Rock 'n' Roll Las VegasLas VegasNV3:23:29#10942
2024Rock 'n' Roll San DiegoSan DiegoCA2:05:57#5436
2024Capital City River RunLansingMI2:37:55#526
2024Capital City River RunLansingMI2:37:56#526
2024USA Women's Half Marathon NashvilleNashvilleTN2:47:29#553
2023Pocantico Hills RacesTarrytownNY1:53:48#47
2023Eau Claire MarathonEau ClaireWI3:14:10#1421
2022University of Michigan Health-West Grand Rapids MarathonGrand RapidsMI1:48:45#241
20222026 Trinity Health Seaway RunMuskegonMI1:50:01#51
2022Mercy Health Seaway RunMuskegonMI1:50:01#51
2022Mackinac Island Great Turtle Half Marathon & 5.7 MileMackinac IslandMI2:57:27#531
2022Eau Claire MarathonEau ClaireWI3:30:30#1087
202120th Annual Hungry Duck Half Marathon, 10K & 5K Run/WalkBrightonMI1:50:27#39
2020Detroit Free Press MarathonDetroitMI2:15:45#417
2019Run SF "Golden Gate City" 5K/10K/13.1San FranciscoCA2:06:02#1542
2019Rock 'n' Roll Washington DCWashingtonDC2:06:59#4121
2019Hamptons Marathon & Half MarathonEast HamptonNY3:03:14#1134
20192025 Disney Princess Half Marathon Weekend presented by CORKCICLE®OrlandoFL3:08:16#10203
2018Boston's Run To RememberBostonMA1:57:22#1557
2018The LESS Popular Brooklyn Half Marathon!BrooklynNY2:05:11#13967
2018Philadelphia MarathonPhiladelphiaPA2:18:34#6826
2018Minnesota Half Marathon and 5kSaint PaulMN2:34:12#753
2018Sparta Half marathon 5kSpartaWI3:07:41#79
2018Eau Claire MarathonEau ClaireWI3:08:26#1835
2017Kaiser Permanente Colfax MarathonDenverCO2:00:08#1176
2017Rim Rock Marathon and Half MarathonFruitaCO2:04:45#179
2017Mini Donut Half Marathon and 5K Honor Walk/RunOnalaskaWI3:21:53#406
2016Rim Rock Marathon and Half MarathonFruitaCO2:00:37#120
2016Philadelphia MarathonPhiladelphiaPA2:11:31#5210
2016Kaiser Permanente Colfax MarathonDenverCO2:14:16#2482
20162025 Disney Princess Half Marathon Weekend presented by CORKCICLE®OrlandoFL2:27:28#3042
2015Rock 'n' Roll Savannah Marathon & 1/2 MarathonSavannahGA1:40:37#203
2015RiverTownRunWashingtonMO1:55:44#34
2015The LESS Popular Brooklyn Half Marathon!BrooklynNY1:59:59#11821
2015Philadelphia MarathonPhiladelphiaPA2:02:48#4191
2015Canyonlands Half MarathonMoabUT2:10:43#1083
20152027 Walt Disney World® Marathon WeekendOrlandoFL2:26:09#6799
2015Philadelphia MarathonPhiladelphiaPA2:35:20#8984
20152026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San DiegoCoronadoCA2:48:14#1510
2014Rock 'n' Roll Savannah Marathon & 1/2 MarathonSavannahGA1:32:56#133
2014Hills and Hollows 5KValmeyerIL1:42:58#12
2014Wildwood Frozen FeetWildwoodMO1:52:00#61
2014United Airlines NYC HalfNew YorkNY1:52:25#6376
2014Carlsbad MarathonCarlsbadCA2:01:00#2254
2014Philadelphia MarathonPhiladelphiaPA2:02:55#4897
2013Hospital Hill RunKansas CityMO1:40:54#371
2013MO' Cowbell Marathon/Half-Marathon/10K/5KSaint CharlesMO1:40:58#135
2013Greater St. Louis MarathonSt. LouisMO1:43:00#425
2013Charleston Half MarathonCharlestonSC1:45:54#281
2013Women's Half MarathonNew YorkNY2:03:24#2214
2013Lake Superior Shore RunMarquetteMI2:09:10#40
2013IMT Des Moines MarathonDes MoinesIA2:28:28#3842
2013Philadelphia MarathonPhiladelphiaPA2:37:38#10473
2012Saint Louis Half Marathon and 5KSaint LouisMO1:43:15#172
2012Omaha MarathonOmahaNE1:47:56#366
2012Flying Pirate Half MarathonKill Devil HillsNC1:50:48#220
2012Detroit Free Press MarathonDetroitMI2:32:53#6002
2012Women's Half MarathonNew YorkNY3:25:24#6821
2011NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklynNY1:50:58#1079
2011Rock 'n' Roll San DiegoSan DiegoCA1:51:25#1610
2011Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan FranciscoCA2:04:14#1624
2011Grandma's MarathonDuluthMN2:10:29#3595
2010Eugene Marathon 2024EugeneOR1:49:38#646
2009Seacoast Half MarathonPortsmouthNH2:06:41#643
2009Napa Valley Trail MarathonCalistogaCA2:12:00#91
2008Seacoast Half MarathonPortsmouthNH2:14:04#786
2008Fairfield Road RacesFairfieldCT2:20:18#1574
2007Kaiser Permanente San Francisco Half Marathon & 5KSan FranciscoCA1:52:03#1650
2007Mulberry Island Half MarathonFort EustisVA1:53:22#75
2007Rock 'n' Roll Virgina Beach Half MarathonVirginia BeachVA3:29:27#16235
2006Cleveland Marathon & Half MarathonClevelandOH2:01:24#962
2005Fairfield Road RacesFairfieldCT1:48:28#449
2004Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT1:43:57#305
2004Rock 'n' Roll Virgina Beach Half MarathonVirginia BeachVA1:49:36#1273
2004Gobbler Grind Marathon, Half Marathon, 10K & 5KOverland ParkKS2:36:32#578
2003Canyonlands Half MarathonMoabUT1:53:54#885
2003Rock 'n' Roll Virgina Beach Half MarathonVirginia BeachVA1:59:38#2387
2001Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:48:14#2298
19972025 500 Festival Running EventsIndianapolisIN3:42:07#15518
1994The LESS Popular Brooklyn Half Marathon!BrooklynNY2:02:23#780
1993Women's Half MarathonNew YorkNY1:58:20#268

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

MIMichigan
12 races
NYNew York
10 races
CACalifornia
8 races
PAPennsylvania
7 races
MOMissouri
6 races
VAVirginia
5 races
WIWisconsin
5 races
COColorado
4 races
INIndiana
4 races
CTConnecticut
3 races
GAGeorgia
2 races
MNMinnesota
2 races
NHNew Hampshire
2 races
UTUtah
2 races
DCDistrict of Columbia
1 race
IAIowa
1 race
ILIllinois
1 race
KSKansas
1 race
MAMassachusetts
1 race
OROregon
1 race
SCSouth Carolina
1 race
NJNew Jersey
0 races

50-State Challenge

22/ 51 states + DC

29 states to go