HalfRuns
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Katherine O'Brien

FemalePennsylvania2007–2026

49

Total Finishes

28

Different Races

13

States (25%)

1:53:33

PR (8:40/mi)

2:39:21

Average

+0:31:48

Slower (first to last)

Medal House

2013

2025 Aramco Houston Half Marathon Searchable Finish Line Video

2:27:32
#5773 overall#2645 gender
2013

Sarasota Half Marathon

2:41:48
#2080 overall#1222 gender
2012

Fairfield Road Races

2:06:28
#1847 overall#728 gender
2012

Philadelphia Marathon

2:23:08
#7681 overall#4404 gender
2012

2026 Disney Wine & Dine Half Marathon Weekend

2:35:25
#5404 overall#3035 gender
2012

Rock 'n' Roll Washington DC

2:43:27
#13882 overall#8758 gender
2012

2026 Disneyland® Half Marathon Weekend presented by HONDA

2:43:33
#7926 overall#4262 gender
2011

Baltimore Running Festival

2:05:15
#3156 overall#1346 gender
2011

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

2:20:00
#3957 overall#1955 gender
2011

Rock 'n' Roll Virgina Beach Half Marathon

2:28:53
#6785 overall#3232 gender
2007

United Airlines NYC Half

1:55:58
#3891 overall#1147 gender
2006

Baltimore Running Festival

1:54:54
#930 overall#296 gender

Performance Timeline

PR 1:53:3320062007201120112011201220122012201220122013201320132013201320132013201320142014201420142014201420142014201520152016201620162016201620172017201720172017201720172018201820192020202120222022202220222023202320242024202520252025202620262026

Complete Race Log

YearRaceStateTimePlace
2026Charleston Half MarathonCharlestonSC2:06:44#2192
202618th Annual F^3 Lake Half Marathon & 5kChicagoIL2:21:41#1106
2026Milwaukee MarathonMilwaukeeWI2:26:42#2179
2025Shipyard Old Port Half MarathonPortlandME2:01:47#1255
2025Milwaukee MarathonMilwaukeeWI2:14:31#1453
202518th Annual F^3 Lake Half Marathon & 5kChicagoIL2:15:56#1164
2024Milwaukee Lakefront MarathonMilwaukeeWI2:19:43#1181
2024Milwaukee MarathonMilwaukeeWI2:31:37#1119
2023Shamrock MarathonVirginia BeachVA2:26:58#3332
2023Summer's Done 13.1AustinTX2:49:51#6945
2022Blueberry Cove 13.1 2026Tenants HarborME1:53:33#45
2022Rock 'n' Roll New OrleansNew OrleansLA2:30:21#2915
2022B.A.A. Half MarathonBostonMA2:40:01#5649
2022Summer's Done 13.1AustinTX2:40:51#5735
2021Summer's Done 13.1AustinTX2:38:40#3040
2020Summer's Done 13.1AustinTX2:43:53#6000
2019B.A.A. Half MarathonBostonMA2:26:26#4917
2018B.A.A. Half MarathonBostonMA2:31:58#5104
2018Summer's Done 13.1AustinTX2:41:14#5899
2017Space Coast Marathon & Half MarathonCocoaFL2:18:06#909
2017Summer's Done 13.1AustinTX2:38:36#4832
2017Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan FranciscoCA2:45:10#5614
2017Thru the LeavesRochester HillsMI2:47:14#30
2017Joshua Tree Half MarathonJoshua TreeCA2:47:16#867
2017Tinker Bell Half MarathonAnaheimCA3:15:52#6449
20172026 Disneyland® Half Marathon Weekend presented by HONDAAnaheimCA3:52:08#8268
2016Baltimore Running FestivalBaltimoreMD2:10:10#3115
20162026 Disneyland® Half Marathon Weekend presented by HONDAAnaheimCA2:34:08#4581
2016Summer's Done 13.1AustinTX2:37:24#6010
2016Zion Half MarathonSpringdaleUT3:06:47#1874
2016Space Coast Marathon & Half MarathonCocoaFL3:49:28#2982
2015Rock ‘n’ Roll Denver Marathon & 1/2 MarathonDenverCO2:34:40#5950
2015Summer's Done 13.1AustinTX2:39:56#6878
2014Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan FranciscoCA2:03:31#1408
2014Almond BowlChicoCA2:18:03#233
2014Space Coast Marathon & Half MarathonCocoaFL2:55:59#2160
2014Life Time Miami Marathon & HalfMiamiFL2:58:44#12806
20142026 Disneyland® Half Marathon Weekend presented by HONDAAnaheimCA3:01:44#10015
2014Tinker Bell Half MarathonAnaheimCA3:02:21#7697
20142025 Disney Princess Half Marathon Weekend presented by CORKCICLE®OrlandoFL3:09:32#11917
20142027 Walt Disney World® Marathon WeekendOrlandoFL3:23:25#16885
20132025 Aramco Houston Half Marathon Searchable Finish Line VideoHoustonTX2:27:32#5773
2013Sarasota Half MarathonSarasotaFL2:41:48#2080
2013U.S. Polo Assn. Palm Beaches MarathonWest Palm BeachFL2:47:19#1776
2013Space Coast Marathon & Half MarathonCocoaFL2:47:33#1759
20132026 National Women's Half Marathon and 8KWashingtonDC2:52:53#11645
20132026 Disney Wine & Dine Half Marathon WeekendOrlandoFL2:55:18#7287
20132027 Walt Disney World® Marathon WeekendOrlandoFL3:08:19#17418
20132026 Disneyland® Half Marathon Weekend presented by HONDAAnaheimCA3:16:14#11700
2012Fairfield Road RacesFairfieldCT2:06:28#1847
2012Philadelphia MarathonPhiladelphiaPA2:23:08#7681
20122026 Disney Wine & Dine Half Marathon WeekendOrlandoFL2:35:25#5404
2012Rock 'n' Roll Washington DCWashingtonDC2:43:27#13882
20122026 Disneyland® Half Marathon Weekend presented by HONDAAnaheimCA2:43:33#7926
2011Baltimore Running FestivalBaltimoreMD2:05:15#3156
2011Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT2:20:00#3957
2011Rock 'n' Roll Virgina Beach Half MarathonVirginia BeachVA2:28:53#6785
2007United Airlines NYC HalfNew YorkNY1:55:58#3891
2006Baltimore Running FestivalBaltimoreMD1:54:54#930

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

FLFlorida
12 races
CACalifornia
11 races
TXTexas
9 races
MAMassachusetts
3 races
CTConnecticut
2 races
ILIllinois
2 races
MEMaine
2 races
VAVirginia
2 races
LALouisiana
1 race
MIMichigan
1 race
NYNew York
1 race
PAPennsylvania
1 race
SCSouth Carolina
1 race

50-State Challenge

13/ 51 states + DC

38 states to go