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KO
Katelyn O'Brien
FemaleMaryland2011–2026
35
Total Finishes
26
Different Races
11
States (22%)
1:49:03
PR (8:19/mi)
2:20:05
Average
+0:55:31
Slower (first to last)
Medal House
2017
Philadelphia Marathon
2:08:42
#4969 overall#2351 gender
2017
Rockfest Half Marathon
2:22:54
#3262 overall#2070 gender
2017
Festival Foods La Crosse Marathon
2:26:52
#657 overall#369 gender
2016
Chilly Half Marathon
1:55:34
#440 overall#186 gender
2016
Rock ‘n' Roll Washington DC
2:04:46
#5248 overall#2338 gender
2016
Pittsburgh Marathon Weekend
2:09:23
#5199 overall#2365 gender
2015
Chilly Half Marathon
1:49:03
#375 overall#134 gender
2015
Pittsburgh Marathon Weekend
2:01:56
#4211 overall#1831 gender
2015
Life Time 305 Half Marathon and 5K Presented by Baptist Health
2:02:29
#672 overall#196 gender
2015
Midwest Financial Group Madison Mini Marathon
2:16:03
#2170 overall#1028 gender
2015
City to the Sea Half Marathon & 5K
2:30:03
#1197 overall#710 gender
2011
Old Sandwich Road Races - June 4 & 5
2:18:18
#305 overall#187 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Shamrock MarathonVirginia Beach | VA | 3:13:49 | #5785 |
| 2025 | Maui Oceanfront MarathonLahaina | HI | 2:02:28 | #110 |
| 2025 | Nationwide Children's Hospital Columbus Marathon & 1/2 Marathon, Jesse Owens 5K, 1 Mile & Kids RunColumbus | OH | 2:51:48 | #7650 |
| 2024 | OCNJ Half Marathon, 10 Mile & 5KOcean City | NJ | 1:56:35 | #292 |
| 2024 | Cambridge Half Marathon + 5KCambridge | MA | 2:01:55 | #4333 |
| 2023 | 2026 Trinity Health Seaway RunMuskegon | MI | 1:54:51 | #95 |
| 2023 | Mercy Health Seaway RunMuskegon | MI | 1:54:51 | #95 |
| 2023 | Newport Rhode RacesNewport | RI | 2:29:22 | #1548 |
| 2023 | Newport Rhode RaceNewport | RI | 2:29:22 | #1548 |
| 2022 | 2026 Trinity Health Seaway RunMuskegon | MI | 1:58:51 | #93 |
| 2022 | Mercy Health Seaway RunMuskegon | MI | 1:58:52 | #93 |
| 2022 | Cambridge Half Marathon + 5KCambridge | MA | 2:15:51 | #2868 |
| 2022 | Nationwide Children's Hospital Columbus Marathon & 1/2 Marathon, Jesse Owens 5K, 1 Mile & Kids RunColumbus | OH | 2:40:36 | #5127 |
| 2022 | Frederick Running FestivalFrederick | MD | 3:09:10 | #2482 |
| 2022 | Frederick Running FestivalFrederick | MD | 3:09:11 | #2483 |
| 2021 | Detroit Free Press MarathonDetroit | MI | 2:49:53 | #4095 |
| 2020 | Baltimore Running FestivalBaltimore | MD | 3:26:26 | #407 |
| 2019 | B.A.A. Half MarathonBoston | MA | 1:50:57 | #1430 |
| 2019 | Cambridge Half Marathon + 5KCambridge | MA | 2:07:33 | #3161 |
| 2019 | Town of Celebration Marathon & Half MarathonCelebration | FL | 2:07:38 | #405 |
| 2019 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:15:11 | #5783 |
| 2018 | Rockfest Half MarathonHampton Beach | NH | 1:56:18 | #814 |
| 2018 | Baltimore Running FestivalBaltimore | MD | 2:23:55 | #3681 |
| 2018 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:30:53 | #8973 |
| 2017 | Philadelphia MarathonPhiladelphia | PA | 2:08:42 | #4969 |
| 2017 | Rockfest Half MarathonHampton Beach | NH | 2:22:54 | #3262 |
| 2017 | Festival Foods La Crosse MarathonLa Crosse | WI | 2:26:52 | #657 |
| 2017 | Hot Cider Hustle - Omaha Half Marathon, 10K, & 5KOmaha | NE | 2:33:17 | #147 |
| 2016 | Chilly Half Marathon | — | 1:55:34 | #440 |
| 2016 | Rock ‘n' Roll Washington DCWashington | DC | 2:04:46 | #5248 |
| 2016 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:09:23 | #5199 |
| 2015 | Chilly Half Marathon | — | 1:49:03 | #375 |
| 2015 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:01:56 | #4211 |
| 2015 | Life Time 305 Half Marathon and 5K Presented by Baptist HealthMiami Beach | FL | 2:02:29 | #672 |
| 2015 | Midwest Financial Group Madison Mini MarathonMadison | WI | 2:16:03 | #2170 |
| 2015 | City to the Sea Half Marathon & 5KSan Luis Obispo | CA | 2:30:03 | #1197 |
| 2011 | Old Sandwich Road Races - June 4 & 5 | — | 2:18:18 | #305 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
MIMichigan
5 racesPAPennsylvania
5 racesMAMassachusetts
4 racesMDMaryland
4 racesFLFlorida
2 racesOHOhio
2 racesWIWisconsin
2 racesCACalifornia
1 raceDCDistrict of Columbia
1 raceNENebraska
1 raceCTConnecticut
0 races50-State Challenge
11/ 50 states
39 states to go