HalfRuns
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Julia O'Brien

FemaleConnecticut2005–2026

46

Total Finishes

38

Different Races

15

States (30%)

1:39:34

PR (7:36/mi)

2:16:22

Average

+0:15:29

Slower (first to last)

Medal House

2013

St. Augustine Half Marathon, 10k and 5k

1:57:10
#150 overall#57 gender
2012

Rock 'n' Roll Chicago Half Marathon

2:04:01
#3717 overall#1436 gender
2012

2025 Disney Princess Half Marathon Weekend presented by CORKCICLE®

2:06:01
#1757 overall#1527 gender
2012

Hamptons Marathon & Half Marathon

2:16:00
#843 overall#482 gender
2010

Barron Collier Companies Naples Half Marathon

1:55:28
#529 overall#178 gender
2009

Rock 'n' Roll Chicago Half Marathon

1:39:34
#790 overall#157 gender
2009

Kentucky Derby Festival Race Weekend

2:42:09
#6506 overall#3034 gender
2008

Daytona Beach Half Marathon & 5K

1:53:44
#154 overall#40 gender
2008

Rock ‘n’ Roll Philadelphia Half Marathon

1:54:53
#4591 overall#1388 gender
2007

Rock ‘n’ Roll Philadelphia Half Marathon

2:02:56
#6475 overall#2281 gender
2005

Rock 'n' Roll Nashville

2:02:02
#3274 overall#1200 gender
2005

Louisville Marathon, Half Marathon and 10K

3:16:42
#404 overall#195 gender

Performance Timeline

PR 1:39:34200520052007200820082009200920102012201220122013201320142014201420152015201520152015201620162016201720172017201720172018201920212021202120212022202320242024202420242024202520262026

Complete Race Log

YearRaceStateTimePlace
2026Frederick Running FestivalFrederickMD2:12:16#1579
2026Rock 'n' Roll Washington DC—2:17:31#6723
2025UConn Health Half MarathonSimsburyCT2:07:45#460
2024The Unforgettable Staten Island Half MarathonStaten IslandNY2:02:03#4522
2024Less Popular Brooklyn Half MarathonBrooklynNY2:05:47#15187
2024Kaiser Permanente Colfax MarathonDenverCO2:12:11#2315
2024Frederick Running FestivalFrederickMD2:25:43#1734
2024Frederick Running FestivalFrederickMD2:25:44#1737
2023Women's Half MarathonNew YorkNY2:00:43#1424
2022United Airlines NYC HalfNew YorkNY2:08:48#11890
2021Chambersburg Half MarathonChambersburgPA1:48:23#79
2021Hogsback Half MarathonColebrookCT1:59:18#84
2021Lebanon Rootbeer Half Marathon & 5KLebanonPA2:09:19#94
2021Historic Half Training (sponsored by FARC)FredericksburgVA3:20:22#1497
2019Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT2:05:10#1731
2018Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT2:00:08#1626
2017Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT2:05:13#1778
2017Life Time Miami Marathon & HalfMiamiFL2:11:11#5684
2017United Airlines NYC HalfNew YorkNY2:13:53#12647
2017AdventHealth Orange Blossom Half Marathon-10K-5KFrostproofFL2:30:03#170
2017Greater St. Louis MarathonSt. LouisMO3:32:37#4434
2016Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT2:02:17#2006
2016Rock 'n' Roll Savannah Marathon & 1/2 MarathonSavannahGA2:07:44#2542
2016Rock ‘n' Roll Washington DCWashingtonDC2:09:05#6202
2015Rock ‘n' Roll Washington DCWashingtonDC2:14:09#7382
2015Providence Rhode RacesEast ProvidenceRI2:20:03#1202
2015Frederick Running FestivalFrederickMD2:40:55#3296
2015Baltimore Running FestivalBaltimoreMD2:59:52#6796
20152027 WALT DISNEY WORLD® Marathon Weekend presented by State Farm® With A Running PassionOrlandoFL3:01:27#14412
2014Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT2:02:43#2578
2014Twin Lights Half MarathonGloucesterMA2:09:27#541
20142026 National Women's Half Marathon and 8KWashingtonDC2:21:24#7200
2013St. Augustine Half Marathon, 10k and 5kSt AugustineFL1:57:10#150
2013Annapolis Running ClassicAnnapolisMD2:37:34#2022
2012Rock 'n' Roll Chicago Half MarathonChicagoIL2:04:01#3717
20122025 Disney Princess Half Marathon Weekend presented by CORKCICLE®OrlandoFL2:06:01#1757
2012Hamptons Marathon & Half MarathonEast HamptonNY2:16:00#843
2010Barron Collier Companies Naples Half MarathonNaplesFL1:55:28#529
2009Rock 'n' Roll Chicago Half MarathonChicagoIL1:39:34#790
2009Kentucky Derby Festival Race WeekendLouisvilleKY2:42:09#6506
2008Daytona Beach Half Marathon & 5KDaytona BeachFL1:53:44#154
2008Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:54:53#4591
2007Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA2:02:56#6475
2005Rock 'n' Roll NashvilleNashvilleTN2:02:02#3274
2005Louisville Marathon, Half Marathon and 10KLouisvilleKY3:16:42#404

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

FLFlorida
7 races
CTConnecticut
7 races
NYNew York
6 races
MDMaryland
6 races
PAPennsylvania
4 races
DCDistrict of Columbia
3 races
KYKentucky
2 races
ILIllinois
2 races
TNTennessee
1 race
MAMassachusetts
1 race
RIRhode Island
1 race
GAGeorgia
1 race
MOMissouri
1 race
VAVirginia
1 race
COColorado
1 race

50-State Challenge

15/ 50 states

35 states to go