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DO
Daniel O'Brien
MaleOhio2000–2026
103
Total Finishes
61
Distinct Races
28
States (55%)
1:19:13
PR (6:03/mi)
2:08:17
Average
+0:35:36
Slower (first to last)
Medal House
2006
Dallas Marathon Weekend
1:44:18
#491 overall#398 gender
2006
Flying Pig Pump and Run
2:04:25
#1366 overall#791 gender
2005
2025 500 Festival Running Events
1:48:26
#3088 overall#2551 gender
2005
Seattle Marathon
2:02:44
#2170 overall#1303 gender
2005
Flying Pig Pump and Run
2:14:44
#1842 overall#959 gender
2004
The Unforgettable Staten Island Half Marathon!
1:45:39
#911 overall#775 gender
2004
NYRR Fred Lebow Half Marathon
1:53:46
#1676 overall#1348 gender
2003
2025 500 Festival Running Events
1:57:57
#5797 overall#4351 gender
2002
Seattle Marathon
1:29:20
#119 overall#106 gender
2002
2025 500 Festival Running Events
2:13:28
#9591 overall#6610 gender
2002
2027 Walt Disney World® Marathon Weekend
2:34:57
#2554 overall#1215 gender
2000
NYRR Fred Lebow Half Marathon
1:56:17
#2395 overall#1860 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | 2025 Aramco Houston Half Marathon Searchable Finish Line VideoHouston | TX | 1:24:08 | #433 |
| 2026 | Apple Valley Half MarathonApple Valley | CA | 2:31:53 | #64 |
| 2025 | Rockfest Half MarathonHampton Beach | NH | 1:45:43 | #276 |
| 2025 | DC Half RacesWashington | DC | 1:49:09 | #1370 |
| 2025 | Allianz Richmond Marathon, CarMax Richmond Half Marathon, & Richmond 8kRichmond | VA | 2:26:58 | #5770 |
| 2024 | La Porte By the Bay Half MarathonLa Porte | TX | 1:34:23 | #12 |
| 2024 | Boise River MarathonEagle | ID | 1:44:58 | #50 |
| 2024 | Jersey Shore Half Marathon and 2 Mile RunHighlands | NJ | 1:47:43 | #159 |
| 2024 | Disneyland® Halloween Half Marathon Weekend 2025Anaheim | CA | 2:26:35 | #1596 |
| 2024 | St. Jude Memphis Marathon WeekendMemphis | TN | 2:35:44 | #4494 |
| 2023 | DC Half RacesWashington | DC | 1:46:52 | #781 |
| 2023 | Jersey Shore Half Marathon and 2 Mile RunHighlands | NJ | 1:53:51 | #156 |
| 2023 | The Notre Dame Holy HalfNotre Dame | IN | 1:54:25 | #309 |
| 2023 | Shamrock'n Half MarathonSacramento | CA | 1:57:21 | #479 |
| 2023 | Perth Half MarathonBurswood | WA | 1:57:34 | #630 |
| 2023 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 1:58:58 | #4185 |
| 2023 | St. Jude Memphis Marathon WeekendMemphis | TN | 2:18:25 | #3105 |
| 2023 | Olympia Lakefair Races - Half Marathon, 8K & 3KOlympia | WA | 2:57:57 | #185 |
| 2022 | 2025 Aramco Houston Half Marathon Searchable Finish Line VideoHouston | TX | 1:35:43 | #634 |
| 2022 | Peace Officer Memorial RunModesto | CA | 2:32:38 | #86 |
| 2021 | Peace Officer Memorial RunModesto | CA | 2:12:37 | #83 |
| 2021 | 2026 Acadia Half Marathon and 10KBar Harbor | ME | 2:13:30 | #130 |
| 2021 | St. Jude Memphis Marathon WeekendMemphis | TN | 2:24:22 | #2499 |
| 2019 | Chicago Spring Half MarathonChicago | IL | 1:40:52 | #280 |
| 2019 | 3M Half MarathonAustin | TX | 1:42:25 | #794 |
| 2019 | Space Coast Marathon & Half MarathonCocoa | FL | 1:45:05 | #79 |
| 2019 | B.A.A. Half MarathonBoston | MA | 1:57:24 | #2121 |
| 2019 | Chevron City to Surf for ActivBurswood | WA | 1:59:58 | #958 |
| 2019 | Flying Pig Pump and RunCincinnati | OH | 2:43:12 | #7856 |
| 2018 | Chicago Spring Half MarathonChicago | IL | 1:44:39 | #485 |
| 2018 | Lane Purser Memorial Road Race SeriesMemphis | TN | 2:17:07 | #273 |
| 2018 | St. Jude Memphis Marathon WeekendMemphis | TN | 2:30:05 | #3844 |
| 2018 | Hershey Half MarathonHershey | PA | 2:34:08 | #2616 |
| 2018 | Hapalua Hawaii's Half MarathonHonolulu | HI | 3:19:50 | #5642 |
| 2017 | Galveston Marathon & Half MarathonGalveston | TX | 1:46:46 | #54 |
| 2017 | Long Grove's Prairie State Half Marathon, 10K & Oktoberfest 5KLong Grove | IL | 1:48:25 | #51 |
| 2017 | Beat The BlerchCarnation | WA | 1:50:42 | #50 |
| 2017 | Hyannis MarathonHyannis | MA | 1:58:05 | #749 |
| 2017 | Greater St. Louis MarathonSt. Louis | MO | 2:04:56 | #1546 |
| 2017 | Go! St. Louis Halloween 10K/5K/Fun RunSaint Louis | MO | 2:14:50 | #437 |
| 2017 | Natural Bridge Caverns Trail RunSan Antonio | TX | 2:17:10 | #83 |
| 2017 | Lane Purser Memorial Road Race SeriesMemphis | TN | 2:22:42 | #346 |
| 2017 | St. Jude Memphis Marathon WeekendMemphis | TN | 2:24:24 | #4288 |
| 2017 | Hershey Half MarathonHershey | PA | 2:30:12 | #2647 |
| 2017 | Rock n Roll NashvilleNashville | TN | 2:41:10 | #9272 |
| 2017 | Air Force MarathonDayton | OH | 2:52:29 | #2789 |
| 2016 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:39:53 | #305 |
| 2016 | Austin MarathonAustin | TX | 1:41:54 | #389 |
| 2016 | Trinity Health Probility Ann Arbor Marathon: 5K • 10K • Half-Marathon • Full Marathon • Marathon Relay • Half-Marathon WalkAnn Arbor | MI | 1:48:10 | #222 |
| 2016 | Ann Arbor MarathonAnn Arbor | MI | 1:48:10 | #212 |
| 2016 | Earth Rock RunNorth Andover | MA | 1:55:39 | #280 |
| 2016 | Newport MarathonNewport | RI | 1:56:11 | #507 |
| 2016 | Lane Purser Memorial Road Race SeriesMemphis | TN | 2:15:37 | #317 |
| 2016 | Go! St. Louis Halloween 10K/5K/Fun RunSaint Louis | MO | 2:21:25 | #783 |
| 2016 | Hershey Half MarathonHershey | PA | 2:55:24 | #3557 |
| 2015 | Earth Rock RunNorth Andover | MA | 1:47:50 | #93 |
| 2015 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:52:41 | #1277 |
| 2015 | Lane Purser Memorial Road Race SeriesMemphis | TN | 1:56:31 | #177 |
| 2015 | St. Jude Memphis Marathon WeekendMemphis | TN | 1:59:34 | #1210 |
| 2015 | Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan Francisco | CA | 2:20:46 | #3666 |
| 2015 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:27:17 | #3643 |
| 2015 | Hershey Half MarathonHershey | PA | 2:48:10 | #3345 |
| 2014 | Little Miami Half Marathon and 10KMorrow | OH | 1:19:13 | #4 |
| 2014 | Pittsburgh Marathon WeekendPittsburgh | PA | 1:21:43 | #53 |
| 2014 | Philadelphia MarathonPhiladelphia | PA | 1:41:07 | #1070 |
| 2014 | Recycled Run BBSC Endurance RunningHenderson | NV | 1:54:52 | #21 |
| 2014 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 1:56:20 | #2521 |
| 2014 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:13:07 | #7289 |
| 2014 | Golden Leaf Half MarathonAspen | CO | 2:19:16 | #204 |
| 2014 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:29:44 | #4188 |
| 2013 | Two Cities MarathonFresno | CA | 1:43:25 | #86 |
| 2013 | Flying Pig Pump and RunCincinnati | OH | 2:31:10 | #6976 |
| 2013 | Air Force MarathonDayton | OH | 2:32:48 | #3153 |
| 2013 | Life Time Chicago Half Marathon + 5KChicago | IL | 2:38:54 | #8826 |
| 2012 | Greater St. Louis MarathonSt. Louis | MO | 1:58:13 | #1872 |
| 2012 | Whistlestop MarathonAshland | WI | 2:10:17 | #786 |
| 2012 | Life Time Chicago Half Marathon + 5KChicago | IL | 2:10:27 | #6088 |
| 2012 | Caesar Rodney Half MarathonWilmington | DE | 2:13:07 | #1167 |
| 2012 | Jazz Half Marathon and 5KNew Orleans | LA | 2:14:45 | #1273 |
| 2011 | Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartford | CT | 1:45:45 | #742 |
| 2011 | Whistlestop MarathonAshland | WI | 2:01:07 | #585 |
| 2011 | Dances with Dirt Devil's LakeBaraboo | WI | 2:04:25 | #44 |
| 2011 | Jazz Half Marathon and 5KNew Orleans | LA | 2:09:39 | #1215 |
| 2010 | Life Time Chicago Half Marathon + 5KChicago | IL | 2:38:18 | #11890 |
| 2009 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:31:32 | #12311 |
| 2008 | Manchester City MarathonManchester | NH | 1:58:25 | #472 |
| 2008 | Life Time Chicago Half Marathon + 5KChicago | IL | 2:16:02 | #6340 |
| 2008 | United Airlines NYC HalfNew York | NY | 2:26:12 | #8825 |
| 2008 | Flying Pig Pump and RunCincinnati | OH | 2:33:03 | #4855 |
| 2007 | 2025 500 Festival Running EventsIndianapolis | IN | 1:59:27 | #7017 |
| 2007 | Flying Pig Pump and RunCincinnati | OH | 2:20:48 | #3085 |
| 2007 | United Airlines NYC HalfNew York | NY | 2:21:37 | #8237 |
| 2006 | Dallas Marathon WeekendDallas | TX | 1:44:18 | #491 |
| 2006 | Flying Pig Pump and RunCincinnati | OH | 2:04:25 | #1366 |
| 2006 | Whistlestop MarathonAshland | WI | 2:10:50 | #595 |
| 2006 | B.A.A. Half MarathonBoston | MA | 2:12:02 | #2830 |
| 2006 | Ridgefield Pamby Half MarathonRidgefield | CT | 2:14:06 | #447 |
| 2006 | United Airlines NYC HalfNew York | NY | 2:21:09 | #8549 |
| 2006 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 2:44:10 | #10116 |
| 2005 | 2025 500 Festival Running EventsIndianapolis | IN | 1:48:26 | #3088 |
| 2005 | Seattle MarathonSeattle | WA | 2:02:44 | #2170 |
| 2005 | Flying Pig Pump and RunCincinnati | OH | 2:14:44 | #1842 |
| 2004 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 1:45:39 | #911 |
| 2004 | NYRR Fred Lebow Half MarathonNew York | NY | 1:53:46 | #1676 |
| 2003 | 2025 500 Festival Running EventsIndianapolis | IN | 1:57:57 | #5797 |
| 2002 | Seattle MarathonSeattle | WA | 1:29:20 | #119 |
| 2002 | 2025 500 Festival Running EventsIndianapolis | IN | 2:13:28 | #9591 |
| 2002 | 2027 Walt Disney World® Marathon WeekendOrlando | FL | 2:34:57 | #2554 |
| 2000 | NYRR Fred Lebow Half MarathonNew York | NY | 1:56:17 | #2395 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
TNTennessee
11 racesCACalifornia
9 racesILIllinois
9 racesOHOhio
9 racesTXTexas
8 racesNYNew York
7 racesPAPennsylvania
7 racesWAWashington
6 racesINIndiana
5 racesMAMassachusetts
5 racesMOMissouri
4 racesWIWisconsin
4 racesCTConnecticut
2 racesDCDistrict of Columbia
2 racesFLFlorida
2 racesLALouisiana
2 racesMIMichigan
2 racesNHNew Hampshire
2 racesNJNew Jersey
2 racesNVNevada
2 racesCOColorado
1 raceHIHawaii
1 raceIDIdaho
1 raceMEMaine
1 raceRIRhode Island
1 raceVAVirginia
1 raceMDMaryland
0 racesMNMinnesota
0 races50-State Challenge
28/ 51 states + DC
23 states to go