HalfRuns
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Margaret O'Connor

FemaleNew York2003–2026

42

Total Finishes

32

Different Races

15

States (30%)

1:35:42

PR (7:18/mi)

2:11:33

Average

-0:49:13

Faster (first to last)

Medal House

2009

Rock 'n' Roll Chicago Half Marathon

2:38:41
#11289 overall#6815 gender
2008

Rock 'n' Roll Chicago Half Marathon

2:30:40
#6844 overall#3277 gender
2007

Rock 'n' Roll Chicago Half Marathon

2:36:02
#7027 overall#3254 gender
2006

Life Time Chicago Half Marathon + 5K

2:12:37
#5452 overall#2659 gender
2006

Greater St. Louis Marathon

2:28:47
#4437 overall#2317 gender
2006

MO' Cowbell Marathon/Half-Marathon/10K/5K

2:29:29
#1912 overall#881 gender
2005

St Louis Half Marathon

3:03:23
#35 overall#28 gender
2004

B&A Trail Marathon

2:00:11
#359 overall#117 gender
2004

Life Time Chicago Half Marathon + 5K

2:07:30
#3187 overall#1267 gender
2004

Chicago Distance Classic

2:27:50
#3439 overall#1456 gender
2003

MO' Cowbell Marathon/Half-Marathon/10K/5K

2:59:38
#1399 overall#690 gender
2003

St Louis Marathon

3:06:01
#1544 overall#896 gender

Performance Timeline

PR 1:35:42200320032004200420042005200620062006200720082009201220122012201220122012201220122013201320132013201420142014201520152015201620162017201720172017201720192019202420262026

Complete Race Log

YearRaceStateTimePlace
2026Cowtown Marathon, Half Marathon and Ultra MarathonFort WorthTX2:10:25#2985
2026The 2026 Cowtown Race WeekendFort WorthTX2:10:25#2986
2024Cowtown Marathon, Half Marathon and Ultra MarathonFort WorthTX2:26:00#3882
20192026 Napa to Sonoma Wine Country Half Marathon & Rosé 5KNapaCA2:05:20#694
2019B.A.A. Half MarathonBostonMA2:20:47#4486
2017Shipyard Old Port Half MarathonPortlandME2:05:08#1062
2017Shipyard Old Port Half Marathon and 5k—2:05:08#1062
2017Philadelphia MarathonPhiladelphiaPA2:25:26#7427
2017Maine Coast Marathon & Half MarathonBiddefordME2:25:32#1063
2017Shipyard Maine Coast Half Marathon—2:25:32#1066
2016Rock ‘n' Roll Washington DCWashingtonDC1:35:42#500
2016Philadelphia Mayor's CupPhiladelphiaPA2:07:50#13
2015Rock ‘n' Roll Washington DCWashingtonDC1:40:23#833
2015Less Popular Brooklyn Half MarathonBrooklynNY1:52:18#7686
2015Philadelphia Mayor's CupPhiladelphiaPA2:15:12#20
2014Less Popular Brooklyn Half MarathonBrooklynNY1:45:10#4682
2014Skinny Turkey Half MarathonRaleighNC1:48:49#104
2014Women's Half MarathonNew YorkNY2:09:44#2625
2013NYRR Fred Lebow Half MarathonNew YorkNY1:43:54#969
2013United Airlines NYC HalfNew YorkNY1:46:39#3240
2013Less Popular Brooklyn Half MarathonBrooklynNY1:51:49#7314
2013Indianapolis Monumental MarathonIndianapolisIN2:44:41#5222
2012The Big Turkey Half Marathon, 10k, 5kClarkNJ1:44:39#88
2012United Airlines NYC HalfNew YorkNY1:44:57#3400
2012NYCRuns Narrows Half MarathonNew YorkNY1:46:05#97
2012Sarasota Half MarathonSarasotaFL1:46:11#224
2012Women's Half MarathonNew YorkNY1:50:19#484
2012B.A.A. Half MarathonBostonMA2:07:06#3419
201212th Annual B.a.a. Half Marathon—2:07:06#3419
2012Flying Pig Pump and RunCincinnatiOH2:15:49#4526
2009Rock 'n' Roll Chicago Half MarathonChicagoIL2:38:41#11289
2008Rock 'n' Roll Chicago Half MarathonChicagoIL2:30:40#6844
2007Rock 'n' Roll Chicago Half MarathonChicagoIL2:36:02#7027
2006Life Time Chicago Half Marathon + 5KChicagoIL2:12:37#5452
2006Greater St. Louis MarathonSt. LouisMO2:28:47#4437
2006MO' Cowbell Marathon/Half-Marathon/10K/5KSaint CharlesMO2:29:29#1912
2005St Louis Half MarathonSt LouisMO3:03:23#35
2004B&A Trail MarathonSeverna ParkMD2:00:11#359
2004Life Time Chicago Half Marathon + 5KChicagoIL2:07:30#3187
2004Chicago Distance Classic—2:27:50#3439
2003MO' Cowbell Marathon/Half-Marathon/10K/5KSaint CharlesMO2:59:38#1399
2003St Louis Marathon—3:06:01#1544

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

NYNew York
9 races
ILIllinois
5 races
MOMissouri
4 races
PAPennsylvania
3 races
TXTexas
3 races
MAMassachusetts
2 races
DCDistrict of Columbia
2 races
MEMaine
2 races
MDMaryland
1 race
NJNew Jersey
1 race
FLFlorida
1 race
OHOhio
1 race
INIndiana
1 race
NCNorth Carolina
1 race
CACalifornia
1 race

50-State Challenge

15/ 50 states

35 states to go