HalfRuns
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Katherine Cox

FemaleMaryland1998–2026

61

Total Finishes

43

Distinct Races

22

States (43%)

1:43:43

PR (7:55/mi)

2:27:55

Average

+0:01:16

Slower (first to last)

Medal House

2008

Seacoast Half Marathon

2:17:48
#845 overall
2007

Mercedes Benz Marathon and Half Marathon

2:32:16
#1918 overall#824 gender
2007

Shamrock Marathon

2:44:34
#3857 overall#1992 gender
2006

Mercedes Benz Marathon and Half Marathon

2:38:31
#1846 overall#823 gender
2006

2026 Helvetia

3:09:09
#1774 overall#1078 gender
2001

The LESS Popular Brooklyn Half Marathon!

1:44:07
#826 overall#134 gender
2000

NYCRUNS Brooklyn Ice Cream Social Half Marathon

2:03:10
#1369 overall#350 gender
2000

NYRR Fred Lebow Half Marathon

2:08:16
#3455 overall#1076 gender
2000

The Unforgettable Staten Island Half Marathon!

2:09:55
#2215 overall#658 gender
1999

NYRR Fred Lebow Half Marathon

2:08:23
#2710 overall#894 gender
1999

NYCRUNS Brooklyn Ice Cream Social Half Marathon

2:09:49
#1483 overall#404 gender
1998

The Unforgettable Staten Island Half Marathon!

2:04:54
#1733 overall#491 gender

Performance Timeline

PR 1:43:43199819991999200020002000200120062006200720072008200820082008200920092011201120112011201220122012201220122013201320142014201420142014201520152015201520152016201620172017201720172017201820182018201820182018201820192019201920192019202020212021202220222022202320252025202520252026

Complete Race Log

YearRaceStateTimePlace
2026Novant Health Wilmington NC MarathonWilmingtonNC2:06:10#1083
2025Anacortes Half Marathon & 5kAnacortesWA1:58:00#67
2025San Diego Beach & Bay Half MarathonSan DiegoCA1:59:51#922
2025Skagit Flats Marathon, Half & 5kBurlingtonWA2:00:09#70
2025South Shore *3 Beach Minimum" Half MarathonHullMA2:19:30#282
2023OCNJ Half Marathon, 10 Mile & 5KOcean CityNJ2:30:30#492
2022Northern Ohio Half Marathon, 2-Person Relay, & 5KMentorOH1:45:43#41
2022Frederick Running FestivalFrederickMD2:35:23#2027
2022Frederick Running FestivalFrederickMD2:35:24#2028
2021Indianapolis Monumental MarathonIndianapolisIN1:44:48#968
2021Allianz Richmond Marathon, CarMax Richmond Half Marathon, & Richmond 8kRichmondVA2:26:58#4054
2020Austin MarathonAustinTX2:00:09#1900
2019Indianapolis Monumental MarathonIndianapolisIN1:43:43#1165
2019Cowtown Marathon, Half Marathon and Ultra MarathonFort WorthTX2:04:05#1846
2019Urban Bourbon Half Marathon and 5KLouisvilleKY2:37:59#2231
2019Frederick Running FestivalFrederickMD2:44:58#2864
2019Frederick Running FestivalFrederickMD2:44:59#2868
2018Indianapolis Monumental MarathonIndianapolisIN1:52:03#1561
2018RUN THE ALAMOSan AntonioTX2:04:09#453
2018Cowtown Marathon, Half Marathon and Ultra MarathonFort WorthTX2:10:40#2311
2018Great Smoky Mountains Half Marathon & 5KTownsendTN2:41:07#1011
2018Frederick Running FestivalFrederickMD2:45:57#3122
2018Frederick Running FestivalFrederickMD2:45:58#3109
2018Urban Bourbon Half Marathon and 5KLouisvilleKY2:59:04#2928
2017BCS College Station MarathonCollege StationTX2:09:18#618
2017Baltimore Running FestivalBaltimoreMD2:12:17#2522
2017Cowtown Marathon, Half Marathon and Ultra MarathonFort WorthTX2:14:39#2638
2017Shipyard Old Port Half MarathonPortlandME2:28:48#1935
2017Cleveland Marathon & Half MarathonClevelandOH2:56:42#4257
2016Metro North YMCA Half MarathonPeabodyMA1:54:01#86
2016Corvallis Half Marathon and 5KCorvallisOR2:05:11#387
2015Rock 'n' Roll Las VegasLas VegasNV2:35:07#12025
2015Frederick Running FestivalFrederickMD2:38:00#3209
2015Lincoln MarathonLincolnNE2:52:12#7427
2015Baltimore Running FestivalBaltimoreMD2:56:39#6701
2015REVEL Big CottonwoodSalt Lake CityUT4:14:11#2497
20142026 National Women's Half Marathon and 8KWashingtonDC2:14:05#5683
2014Frederick Running FestivalFrederickMD2:30:43#3144
2014Baltimore Running FestivalBaltimoreMD2:48:02#7051
2014Lincoln MarathonLincolnNE2:49:22#7678
2014Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA2:49:32#13660
2013Rock 'n' Roll Washington DCWashingtonDC2:37:33#16361
2013Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA2:40:28#15659
2012Austin MarathonAustinTX2:02:57#3483
2012Corvallis Half Marathon and 5KCorvallisOR2:06:33#691
2012Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA2:32:53#12373
2012Women's Half MarathonNew YorkNY2:55:15#6136
2012Deadwood Mickelson Trail MarathonDeadwoodSD3:44:57#1824
2011Murfreesboro Half MarathonMurfreesboroTN2:03:40#510
2011Rock n Roll NashvilleNashvilleTN2:09:55#6521
20112026 HelvetiaHillsboroOR3:20:53#2423
20112027 Walt Disney World® Marathon WeekendOrlandoFL3:33:34#20942
2009Pacific Crest Sports FestivalSunriverOR2:22:12#770
2009Rock n Roll NashvilleNashvilleTN2:58:59#17270
2008Seacoast Half MarathonPortsmouthNH2:17:48#845
2008DONNA Marathon WeekendJacksonville BeachFL2:24:39#1302
2008Detroit Free Press MarathonDetroitMI2:27:39#4512
20082026 - San Antonio MarathonSan AntonioTX2:37:20#10633
2007Mercedes Benz Marathon and Half MarathonBirminghamAL2:32:16#1918
2007Shamrock MarathonVirginia BeachVA2:44:34#3857
2006Mercedes Benz Marathon and Half MarathonBirminghamAL2:38:31#1846
20062026 HelvetiaHillsboroOR3:09:09#1774
2001The LESS Popular Brooklyn Half Marathon!BrooklynNY1:44:07#826
2000NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklynNY2:03:10#1369
2000NYRR Fred Lebow Half MarathonNew YorkNY2:08:16#3455
2000The Unforgettable Staten Island Half Marathon!Staten IslandNY2:09:55#2215
1999NYRR Fred Lebow Half MarathonNew YorkNY2:08:23#2710
1999NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklynNY2:09:49#1483
1998The Unforgettable Staten Island Half Marathon!Staten IslandNY2:04:54#1733

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

MDMaryland
11 races
NYNew York
8 races
TXTexas
8 races
OROregon
5 races
TNTennessee
4 races
INIndiana
3 races
ALAlabama
2 races
DCDistrict of Columbia
2 races
FLFlorida
2 races
MAMassachusetts
2 races
NENebraska
2 races
OHOhio
2 races
VAVirginia
2 races
WAWashington
2 races
CACalifornia
1 race
MEMaine
1 race
MIMichigan
1 race
NCNorth Carolina
1 race
NHNew Hampshire
1 race
NJNew Jersey
1 race
SDSouth Dakota
1 race
UTUtah
1 race

50-State Challenge

22/ 51 states + DC

29 states to go