HalfRuns
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Katherine Ericson

FemaleMaryland2003–2025

64

Total Finishes

53

Distinct Races

5

States (10%)

1:48:14

PR (8:16/mi)

2:09:46

Average

+0:01:30

Slower (first to last)

Medal House

2022

St. Michaels Running Festival presented by Brooks (CANCELED)

2:02:01
#294 overall
2022

St. Michaels Running Festival

2:02:02
#294 overall#115 gender
2022

DC Half Races

2:04:48
#992 overall#368 gender
2022

ASICS Susquehanna River Running Festival presented by University of Maryland Upper Chesapeake Health

2:09:03
#227 overall
2022

Susquehanna River Running Festival

2:09:04
#227 overall#85 gender
2022

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

2:09:53
#1689 overall#710 gender
2022

Parks Half Marathon

2:09:53
#543 overall#178 gender
2022

AmeriHealth Atlantic City Marathon, Half Marathon, 10K & G. Larry James 5K

2:12:47
#430 overall#162 gender
2022

Colorado Springs Marathon, Half, 5K, and Kids K

2:14:34
#407 overall#165 gender
2021

Rock 'n' Roll Washington DC

1:59:46
#3219 overall#1100 gender
2019

Austin Marathon

1:54:04
#1346 overall#389 gender
2003

2026 Anchorage Mayor's Marathon & Half Marathon

2:18:50
#505 overall#258 gender

Performance Timeline

PR 1:48:1420032019202120222022202220222022202220222022202220222022202320232023202320232023202320232023202320232023202320232023202320232024202420242024202420242024202420242024202420242024202420242024202420242024202420242024202420252025202520252025202520252025202520252025202520252025

Complete Race Log

YearRaceStateTimePlace
2025Kaiser Permanente Colfax MarathonDenverCO2:02:53#2066
2025Iron Horse Half MarathonNorth BendWA2:04:07#519
2025Great Western Trail RaceSeveranceCO2:05:32#20
2025Georgetown to Idaho Springs Half MarathonUnknownCO2:08:41#503
2025Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO2:09:57#882
2025BoulderthonBoulderCO2:10:09#2544
2025Run the Rockies RoadFriscoCO2:11:48#96
2025Colorado Springs Marathon, Half, 5K, and Kids KColorado SpringsCO2:13:17#457
2025Ralston Creek Half Marathon & 5KArvadaCO2:14:50#79
2025All-Out Mardi CrawlArvadaCO2:15:35#74
2025All-Out Mardi CrawlLakewoodCO2:15:36#74
2025Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO2:20:06#644
2025All-Out Polar ProwlArvadaCO2:20:19#49
2025All-Out Polar ProwlArvadaCO2:20:20#49
2024Newport News One City MarathonNewport NewsVA1:57:49#208
2024Revel RockiesDenverCO1:58:29#559
2024Virginia Credit Union River City Half & River City 5kRichmondVA1:58:41#543
2024Dahlgren Trail Half MarathonKing GeorgeVA1:59:05#73
2024Coastal Delaware Running FestivalRehoboth BeachDE2:04:25#475
2024Coastal Delaware Running FestivalDewey BeachDE2:04:26#475
2024Little Patuxent River Half Marathon, 10K & 5KColumbiaMD2:05:48#103
2024BoulderthonBoulderCO2:07:18#1562
2024Georgetown to Idaho Springs Half MarathonUnknownCO2:08:37#475
2024Colorado Springs Marathon, Half, 5K, and Kids KColorado SpringsCO2:09:58#356
2024Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile RunWindsorCO2:10:13#82
2024Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO2:13:01#657
2024Kaiser Permanente Colfax MarathonDenverCO2:15:27#2618
2024Summer Splash Prairie Dog Half, 10k, & 5kCastle RockCO2:16:18#81
2024All-Out Summer BreezeArvadaCO2:16:22#41
2024All-Out Summer BreezeArvadaCO2:16:23#41
2024All-Out RunapaloozaArvadaCO2:16:44#45
2024RunapaloozaArvadaCO2:16:44#45
2024All-Out Dog DaysWestminsterCO2:18:19#56
2024The Long View MarathonFort CollinsCO2:23:22#187
2024Shamrock MarathonVirginia BeachVA2:26:36#3273
2024Westminster Trail Half Marathon & 10KWestminsterCO2:27:41#75
2024Rosaryville Half Marathon, 10K, 5K Trail RunUpper MarlboroMD2:37:10#104
2023Allianz Richmond Marathon, CarMax Richmond Half Marathon, & Richmond 8kRichmondVA1:48:14#1319
2023DC Half RacesWashingtonDC1:52:05#1106
2023First Energy Akron MarathonAkronOH1:54:45#494
2023Ocean City Running FestivalOcean CityMD1:57:22#87
2023Ocean City Running FestivalOcean CityMD1:57:23#87
2023Novant Health Wilmington NC MarathonWilmingtonNC1:58:19#599
2023St. Michaels Running Festival presented by Brooks (CANCELED)Saint MichaelsMD1:58:20#357
2023NHRMC Wilmington NC Half MarathonWilmingtonNC1:58:20#599
2023St. Michaels Running FestivalSaint MichaelsMD1:58:21#357
2023Love Run Half MarathonPhiladelphiaPA2:02:46#2417
2023Parks Half MarathonRockvilleMD2:07:43#489
2023Freedom's RunShepherdstownWV2:08:02#88
2023Freedom's RunShepherdstownWV2:08:02#88
2023Coastal Delaware Running FestivalRehoboth BeachDE2:09:30#468
2023Coastal Delaware Running FestivalDewey BeachDE2:09:30#468
2023Delaware Running FestivalWilmingtonDE2:10:33#339
2023Ashland Half Marathon & 5kAshlandVA2:13:16#368
2022St. Michaels Running Festival presented by Brooks (CANCELED)Saint MichaelsMD2:02:01#294
2022St. Michaels Running FestivalSaint MichaelsMD2:02:02#294
2022DC Half RacesWashingtonDC2:04:48#992
2022ASICS Susquehanna River Running Festival presented by University of Maryland Upper Chesapeake HealthHavre de GraceMD2:09:03#227
2022Susquehanna River Running FestivalHavre de GraceMD2:09:04#227
2022Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartfordCT2:09:53#1689
2022Parks Half MarathonRockvilleMD2:09:53#543
2022AmeriHealth Atlantic City Marathon, Half Marathon, 10K & G. Larry James 5KAtlantic CityNJ2:12:47#430
2022Colorado Springs Marathon, Half, 5K, and Kids KColorado SpringsCO2:14:34#407
2022Baltimore Running FestivalBaltimoreMD2:20:50#1965
2022North Olympic Discovery Marathon (5K / 10K/ Half / Full / Relay / Kids Marathon)Port AngelesWA2:29:12#383
2021Rock 'n' Roll Washington DCWashingtonDC1:59:46#3219
2019Austin MarathonAustinTX1:54:04#1346
20032026 Anchorage Mayor's Marathon & Half MarathonAnchorageAK2:18:50#505

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

COColorado
29 races
MDMaryland
13 races
DCDistrict of Columbia
3 races
AKAlaska
1 race
NYNew York
0 races

50-State Challenge

5/ 51 states + DC

46 states to go