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KO
Kate O'Brien
FemaleNew York1998–2026
43
Total Finishes
34
Different Races
15
States (29%)
1:26:23
PR (6:36/mi)
2:14:19
Average
-0:30:41
Faster (first to last)
Medal House
2010
Maine Marathon, Half Marathon and Marathon Relay
2:03:13
#1098 overall#532 gender
2009
United Airlines NYC Half
2:02:29
#4082 overall#1399 gender
2009
Baltimore Running Festival
2:27:47
#5735 overall#2958 gender
2008
United Airlines NYC Half
1:56:08
#3574 overall#1076 gender
2008
The LESS Popular Brooklyn Half Marathon!
1:57:51
#3166 overall#924 gender
2007
The LESS Popular Brooklyn Half Marathon!
2:03:57
#3081 overall#929 gender
2007
United Airlines NYC Half
2:10:47
#6781 overall#2672 gender
2006
NYCRUNS Brooklyn Ice Cream Social Half Marathon
1:54:38
#1492 overall#350 gender
2004
NYRR Fred Lebow Half Marathon
2:02:12
#2627 overall#689 gender
2001
Big Brothers Big Sisters of Flagstaff Dave McKay Memorial Half Marathon and 5K Run/Walk
1:57:52
#74 overall#16 gender
1999
The Unforgettable Staten Island Half Marathon!
1:53:55
#1064 overall#234 gender
1998
The Unforgettable Staten Island Half Marathon!
1:57:04
#1315 overall#310 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Tobacco Road MarathonCary | NC | 1:26:23 | #56 |
| 2025 | Half Marathon UnpluggedBurlington | VT | 1:47:07 | #265 |
| 2025 | Milwaukee MarathonMilwaukee | WI | 2:35:21 | #2102 |
| 2024 | Credit Union Cherry Blossom Ten MileWashington | DC | 1:35:27 | #73 |
| 2024 | Twin Lobster Half MarathonGloucester | MA | 2:30:09 | #555 |
| 2023 | Black Diamond Express Trail RaceMendon | NY | 2:39:28 | #93 |
| 2022 | DC Half RacesWashington | DC | 1:56:49 | #700 |
| 2021 | Sunburst RacesSouth Bend | IN | 2:05:17 | #284 |
| 2021 | Sunburst Races - South BendSouth Bend | IN | 2:05:17 | #284 |
| 2021 | Sleepy Hollow Half MarathonSleepy Hollow | NY | 2:06:11 | #182 |
| 2020 | Brooks Fremantle Running FestivalFremantle | WA | 2:00:59 | #533 |
| 2019 | Lincoln MarathonLincoln | NE | 1:49:57 | #868 |
| 2019 | Good Life HalfsyLincoln | NE | 2:03:03 | #1714 |
| 2018 | JSRC RunAPaloozaAsbury Park | NJ | 2:26:47 | #1160 |
| 2018 | Runapalooza Asbury ParkAsbury Park | NJ | 2:26:47 | #1101 |
| 2017 | Good Life HalfsyLincoln | NE | 1:57:13 | #1193 |
| 2017 | Sunburst RacesSouth Bend | IN | 2:12:20 | #482 |
| 2016 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:21:17 | #2522 |
| 2015 | 2025 500 Festival Running EventsIndianapolis | IN | 2:02:32 | #5494 |
| 2015 | Rock 'n' Roll Washington DCWashington | DC | 2:26:51 | #10144 |
| 2015 | Lake Powell Half MarathonPage | AZ | 2:31:11 | #509 |
| 2015 | Grand Canyon Trail Marathon, Half-Marathon, & 5k Run/WalkGrand Canyon Village | AZ | 2:49:41 | #573 |
| 2015 | Rocky Mountain Half Marathon & 5KEstes Park | CO | 2:55:07 | #1074 |
| 2014 | 2026 National Women's Half Marathon and 8KWashington | DC | 2:16:22 | #6161 |
| 2014 | Lincoln Memorial Half MarathonSpringfield | IL | 2:37:28 | #1522 |
| 2014 | Second Wind Christie Clinic Illinois Race Weekend Training ProgramChampaign | IL | 2:44:54 | #4758 |
| 2013 | Indy Half Marathon at Fort BenIndianapolis | IN | 2:12:44 | #727 |
| 2013 | Charlevoix MarathonCharlevoix | MI | 2:39:39 | #533 |
| 2013 | Second Wind Christie Clinic Illinois Race Weekend Training ProgramChampaign | IL | 2:56:11 | #5676 |
| 2012 | Second Wind Christie Clinic Illinois Race Weekend Training ProgramChampaign | IL | 2:34:28 | #5476 |
| 2012 | Charlevoix MarathonCharlevoix | MI | 2:45:08 | #516 |
| 2011 | The Giant RaceSan Francisco | CA | 2:21:34 | #1649 |
| 2011 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 2:37:31 | #2785 |
| 2011 | Midwest Financial Group Madison Mini MarathonMadison | WI | 2:42:28 | #2670 |
| 2010 | Maine Marathon, Half Marathon and Marathon RelayPortland | ME | 2:03:13 | #1098 |
| 2009 | United Airlines NYC HalfNew York | NY | 2:02:29 | #4082 |
| 2009 | Baltimore Running FestivalBaltimore | MD | 2:27:47 | #5735 |
| 2008 | United Airlines NYC HalfNew York | NY | 1:56:08 | #3574 |
| 2008 | The LESS Popular Brooklyn Half Marathon!Brooklyn | NY | 1:57:51 | #3166 |
| 2007 | The LESS Popular Brooklyn Half Marathon!Brooklyn | NY | 2:03:57 | #3081 |
| 2007 | United Airlines NYC HalfNew York | NY | 2:10:47 | #6781 |
| 2006 | NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklyn | NY | 1:54:38 | #1492 |
| 2004 | NYRR Fred Lebow Half MarathonNew York | NY | 2:02:12 | #2627 |
| 2001 | Big Brothers Big Sisters of Flagstaff Dave McKay Memorial Half Marathon and 5K Run/WalkFlagstaff | AZ | 1:57:52 | #74 |
| 1999 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 1:53:55 | #1064 |
| 1998 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 1:57:04 | #1315 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
NYNew York
11 racesINIndiana
5 racesAZArizona
4 racesDCDistrict of Columbia
4 racesILIllinois
4 racesNENebraska
3 racesCACalifornia
2 racesMIMichigan
2 racesNJNew Jersey
2 racesWIWisconsin
2 racesNCNorth Carolina
1 raceVTVermont
1 raceMNMinnesota
0 racesPAPennsylvania
0 racesVAVirginia
0 races50-State Challenge
15/ 51 states + DC
36 states to go