Back to League Tables
JD
John Duffy
MaleArizona1987–2026
184
Total Finishes
93
Distinct Races
22
States (43%)
1:29:32
PR (6:50/mi)
2:15:14
Average
+1:31:57
Slower (first to last)
Medal House
2000
Georgetown to Idaho Springs Half Marathon
1:57:03
#1194 overall#807 gender
1999
2025 500 Festival Running Events
2:26:41
#10192 overall#6864 gender
1998
Georgetown to Idaho Springs Half Marathon
1:36:37
#242 overall#214 gender
1998
2025 500 Festival Running Events
2:43:29
#12202 overall#7900 gender
1995
Buhl Half Marathon and 5K
2:07:47
#241 overall#192 gender
1995
2025 500 Festival Running Events
2:41:25
#8964 overall#6351 gender
1992
The Unforgettable Staten Island Half Marathon!
3:08:20
#1554 overall#1186 gender
1991
The Unforgettable Staten Island Half Marathon!
2:15:34
#1226 overall#1005 gender
1990
New Prague Half Marathon
1:37:23
#209 overall#189 gender
1990
The Unforgettable Staten Island Half Marathon!
2:12:59
#1351 overall#1103 gender
1990
The LESS Popular Brooklyn Half Marathon!
2:16:34
#1450 overall#1192 gender
1987
Buhl Half Marathon and 5K
1:32:06
#126 overall#126 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Frederick Running FestivalFrederick | MD | 1:58:25 | #976 |
| 2026 | Gasparilla Distance Classic Race WeekendTampa | FL | 2:04:25 | #1287 |
| 2026 | 2027 All Day Running Co. Clearwater Marathon & Running FestivalClearwater | FL | 2:19:38 | #534 |
| 2026 | Florida Shamrock Distance ClassicSaint Petersburg | FL | 2:38:14 | #435 |
| 2026 | Gasparilla Distance Classic Race WeekendTampa | FL | 3:04:03 | #3803 |
| 2025 | Rosendale Runs Half Marathon and 6K Run/WalkRosendale | NY | 1:50:07 | #40 |
| 2025 | Hudson Valley Marathon at the Walkway Over the HudsonHighland | NY | 1:50:42 | #197 |
| 2025 | St. Pete Run FestSaint Petersburg | FL | 1:52:31 | #672 |
| 2025 | The LESS Popular Brooklyn Half Marathon!Brooklyn | NY | 1:52:46 | #8101 |
| 2025 | United Airlines NYC HalfNew York | NY | 1:53:35 | #8871 |
| 2025 | LT Michael P. Murphy Run 15K & 5KHauppauge | NY | 1:54:21 | #176 |
| 2025 | Buffalo Marathon WeekendBuffalo | NY | 1:57:57 | #884 |
| 2025 | 2027 All Day Running Co. Clearwater Marathon & Running FestivalClearwater | FL | 2:05:39 | #342 |
| 2025 | Frederick Running FestivalFrederick | MD | 2:06:43 | #1028 |
| 2025 | Frederick Running FestivalFrederick | MD | 2:06:44 | #1028 |
| 2025 | Time Travel Half-Marathon (and 5k/10k) - TampaLargo | FL | 2:20:41 | #9 |
| 2025 | Sarasota Half MarathonSarasota | FL | 2:23:46 | #92 |
| 2025 | Gasparilla Distance Classic Race WeekendTampa | FL | 2:25:41 | #2593 |
| 2025 | Florida Halloween Distance ClassicSaint Petersburg | FL | 2:40:43 | #176 |
| 2025 | Halloween Distance ClassicSt. Petersburg | FL | 2:40:43 | #176 |
| 2025 | Lock 2 Lock Marathon/Half Marathon/10kWilliamsport | MD | 2:43:48 | #103 |
| 2024 | Rock Hall Half Marathon presented by INFINITICleveland | OH | 1:48:06 | #99 |
| 2024 | Gasparilla Distance Classic Race WeekendTampa | FL | 1:56:22 | #957 |
| 2024 | Frederick Running FestivalFrederick | MD | 2:01:50 | #910 |
| 2024 | Frederick Running FestivalFrederick | MD | 2:01:51 | #910 |
| 2024 | Buffalo Marathon WeekendBuffalo | NY | 2:03:13 | #1158 |
| 2024 | Lock 2 Lock Marathon/Half Marathon/10kWilliamsport | MD | 2:03:53 | #44 |
| 2024 | Cambridge Half Marathon + 5KCambridge | MA | 2:09:44 | #5327 |
| 2024 | St. Pete Run FestSaint Petersburg | FL | 2:20:24 | #1440 |
| 2024 | Gasparilla Distance Classic Race WeekendTampa | FL | 2:29:11 | #2498 |
| 2024 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:34:32 | #7369 |
| 2023 | Flying Pig Pump and RunCincinnati | OH | 1:49:10 | #786 |
| 2023 | Buffalo Marathon WeekendBuffalo | NY | 1:57:22 | #7 |
| 2023 | Cambridge Half Marathon + 5KCambridge | MA | 2:10:27 | #3838 |
| 2023 | Lock 2 Lock Marathon/Half Marathon/10kWilliamsport | MD | 2:13:32 | #25 |
| 2023 | Frederick Running FestivalFrederick | MD | 2:15:58 | #1512 |
| 2023 | Frederick Running FestivalFrederick | MD | 2:15:59 | #1320 |
| 2023 | Gasparilla Distance Classic Race WeekendTampa | FL | 2:16:52 | #1660 |
| 2023 | Florida Shamrock Distance ClassicSaint Petersburg | FL | 2:18:14 | #104 |
| 2023 | Florida Shamrock Halfathon and 5KSt Petersburg | FL | 2:18:15 | #104 |
| 2023 | The Jersey City Marathon & Half Marathon Marquee Experience at NewportJersey City | NJ | 2:40:44 | #2254 |
| 2022 | Pittsburgh Marathon WeekendPittsburgh | PA | 1:29:32 | #151 |
| 2022 | The ThermoFisher Scientific Grand Island 1/2 MarathonGrand Island | NY | 1:30:29 | #14 |
| 2022 | 2027 Syracuse Half MarathonSyracuse | NY | 1:36:11 | #238 |
| 2022 | Buffalo Marathon WeekendBuffalo | NY | 1:49:47 | #341 |
| 2022 | The Lagerhead Marathon and HalfOttawa | KS | 2:04:37 | #43 |
| 2022 | 2026 Miami Beach Halloween Half Marathon & Freaky 4-MilerMiami Beach | FL | 2:13:56 | #298 |
| 2022 | Sunrise Half MarathonSunrise | FL | 2:17:47 | #114 |
| 2021 | EVL Halloween Half Marathon, 5k, Half Marathon RelayEllicottville | NY | 1:31:40 | #8 |
| 2021 | Cassadaga Lakes Running FestivalCassadaga | NY | 1:32:45 | #4 |
| 2021 | Happy HalfEllicottville | NY | 1:33:37 | #19 |
| 2021 | Kinzua Half Marathon & 5kMount Jewett | PA | 1:34:10 | #5 |
| 2021 | The ThermoFisher Scientific Grand Island 1/2 MarathonGrand Island | NY | 1:36:01 | #25 |
| 2021 | All-Out FallfestWestminster | CO | 1:56:20 | #28 |
| 2020 | EVL Halloween Half Marathon, 5k, Half Marathon RelayEllicottville | NY | 1:43:02 | #58 |
| 2020 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 3:08:38 | #6073 |
| 2019 | Pittsburgh Marathon WeekendPittsburgh | PA | 1:48:46 | #1344 |
| 2019 | Rock 'n' Roll Washington DCWashington | DC | 1:56:19 | #2513 |
| 2019 | Hershey Half MarathonHershey | PA | 2:08:26 | #1291 |
| 2019 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:47:04 | #3252 |
| 2019 | Lost Dutchman MarathonApache Junction | AZ | 2:49:33 | #726 |
| 2019 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:57:37 | #5820 |
| 2019 | The Runners Den Scottsdale 1/2 Marathon & 5KScottsdale | AZ | 2:58:50 | #1086 |
| 2018 | David Herlocker Bachman Valley Half MarathonWestminster | MD | 1:51:12 | #45 |
| 2018 | Frederick Running FestivalFrederick | MD | 1:53:13 | #650 |
| 2018 | Frederick Running FestivalFrederick | MD | 1:53:14 | #643 |
| 2018 | Star Wars Half Marathon - The Dark SideLake Buena Vista | FL | 1:56:22 | #740 |
| 2018 | Baltimore Running FestivalBaltimore | MD | 1:59:25 | #1534 |
| 2018 | Rock 'n' Roll Washington DCWashington | DC | 1:59:33 | #3127 |
| 2018 | Detroit Free Press MarathonDetroit | MI | 2:01:03 | #453 |
| 2018 | LewisGale Salem Half Marathon, 8K and Kids Fun RunSalem | VA | 2:02:53 | #122 |
| 2018 | Historic Half Training (sponsored by FARC)Fredericksburg | VA | 2:15:53 | #241 |
| 2018 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:40:43 | #2994 |
| 2018 | Charcoal RunPine Grove Furnace | PA | 2:49:32 | #87 |
| 2018 | Iron Run Trail Half Marathon and 5KGardners | PA | 2:49:32 | #87 |
| 2018 | Lost Dutchman MarathonApache Junction | AZ | 2:50:15 | #643 |
| 2018 | The Runners Den Scottsdale 1/2 Marathon & 5KScottsdale | AZ | 2:50:29 | #948 |
| 2018 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:50:57 | #6390 |
| 2018 | Gilbert Half MarathonGilbert | AZ | 2:56:17 | #589 |
| 2017 | Rock 'n' Roll Washington DCWashington | DC | 1:58:34 | #3351 |
| 2017 | Baltimore Running FestivalBaltimore | MD | 1:59:06 | #1348 |
| 2017 | David Herlocker Bachman Valley Half MarathonWestminster | MD | 2:00:02 | #50 |
| 2017 | Dahlgren Trail Half MarathonKing George | VA | 2:03:11 | #70 |
| 2017 | Ashland Half Marathon & 5kAshland | VA | 2:05:18 | #431 |
| 2017 | LewisGale Salem Half Marathon, 8K and Kids Fun RunSalem | VA | 2:06:36 | #59 |
| 2017 | Foot Levelers Blue Ridge MarathonRoanoke | VA | 2:19:14 | #274 |
| 2017 | Prince William Half MarathonBristow | VA | 2:27:29 | #1002 |
| 2017 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:33:07 | #2912 |
| 2017 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:33:29 | #6299 |
| 2017 | Dam to DSMDes Moines | IA | 2:39:31 | #3746 |
| 2017 | The Runners Den Scottsdale 1/2 Marathon & 5KScottsdale | AZ | 2:41:41 | #893 |
| 2017 | Gilbert Half MarathonGilbert | AZ | 2:49:37 | #660 |
| 2017 | Lost Dutchman MarathonApache Junction | AZ | 2:52:04 | #584 |
| 2016 | Downhill @ Dawn Half MarathonRidgecrest | NC | 1:47:45 | #69 |
| 2016 | Rock 'n' Roll Washington DCWashington | DC | 1:59:06 | #3930 |
| 2016 | Historic Half Training (sponsored by FARC)Fredericksburg | VA | 1:59:18 | #1367 |
| 2016 | 757 Road RaceNewport News | VA | 2:01:10 | #149 |
| 2016 | 47th Colonial Half Marathon and 5KWilliamsburg | VA | 2:02:16 | #296 |
| 2016 | LewisGale Salem Half Marathon, 8K and Kids Fun RunSalem | VA | 2:06:01 | #100 |
| 2016 | Foot Levelers Blue Ridge MarathonRoanoke | VA | 2:12:27 | #250 |
| 2016 | Ashland Half Marathon & 5kAshland | VA | 2:15:04 | #427 |
| 2016 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:29:22 | #2879 |
| 2016 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:31:41 | #6810 |
| 2016 | The Runners Den Scottsdale 1/2 Marathon & 5KScottsdale | AZ | 2:34:53 | #815 |
| 2016 | Lost Dutchman MarathonApache Junction | AZ | 2:41:50 | #564 |
| 2016 | Gilbert Half MarathonGilbert | AZ | 2:48:37 | #708 |
| 2015 | Fox Valley Marathon RacesSaint Charles | IL | 1:46:45 | #156 |
| 2015 | Naperville Half MarathonNaperville | IL | 1:47:39 | #392 |
| 2015 | Buffalo Marathon WeekendBuffalo | NY | 1:48:01 | #445 |
| 2015 | Crawlin' Crab Half MarathonHampton | VA | 1:54:53 | #270 |
| 2015 | Shamrock MarathonVirginia Beach | VA | 1:56:02 | #2027 |
| 2015 | Runtastic THANKFULLehi | UT | 1:57:55 | #269 |
| 2015 | Runtastic THANKFUL - LehiLehi | UT | 1:57:55 | #269 |
| 2015 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:33:36 | #2808 |
| 2015 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:36:21 | #7467 |
| 2015 | The Runners Den Scottsdale 1/2 Marathon & 5KScottsdale | AZ | 2:38:46 | #953 |
| 2015 | Gilbert Half MarathonGilbert | AZ | 2:45:10 | #605 |
| 2015 | Lost Dutchman MarathonApache Junction | AZ | 2:46:15 | #700 |
| 2015 | Rock 'n' Roll Half Marathon San FranciscoSan Francisco | CA | 3:43:33 | #6795 |
| 2014 | Barron Collier Companies Naples Half MarathonNaples | FL | 1:41:16 | #294 |
| 2014 | Get Lucky Half MarathonMinneapolis | MN | 2:05:51 | #1262 |
| 2014 | Buffalo Marathon WeekendBuffalo | NY | 2:12:06 | #1969 |
| 2014 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:25:35 | #8495 |
| 2014 | Gilbert Half MarathonGilbert | AZ | 2:26:42 | #475 |
| 2014 | The Runners Den Scottsdale 1/2 Marathon & 5KScottsdale | AZ | 2:29:12 | #927 |
| 2014 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:29:30 | #8032 |
| 2014 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:37:53 | #2691 |
| 2014 | Naperville Half MarathonNaperville | IL | 3:19:56 | #3250 |
| 2013 | Park2Park Half MarathonHolland | MI | 1:31:40 | #39 |
| 2013 | March Madness Half MarathonCary | IL | 1:44:26 | #333 |
| 2013 | Buffalo Marathon WeekendBuffalo | NY | 1:48:07 | #480 |
| 2013 | Allianz Richmond Marathon, CarMax Richmond Half Marathon, & Richmond 8kRichmond | VA | 1:49:03 | #1179 |
| 2013 | Rock 'n' Roll Washington DCWashington | DC | 1:52:47 | #3439 |
| 2013 | Hershey Half MarathonHershey | PA | 2:05:48 | #1645 |
| 2013 | Monster DashMinneapolis | MN | 2:18:42 | #4011 |
| 2013 | St. Luke's Half Marathon & 5KAllentown | PA | 2:19:52 | #2488 |
| 2013 | Life Time Miami Marathon & HalfMiami | FL | 2:27:28 | #8578 |
| 2013 | Cleveland Marathon & Half MarathonCleveland | OH | 2:28:16 | #5653 |
| 2013 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:38:31 | #11468 |
| 2013 | Sprouts Mesa - Phoenix MarathonMesa | AZ | 2:39:02 | #1767 |
| 2013 | Lost Dutchman MarathonApache Junction | AZ | 2:48:35 | #777 |
| 2013 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 2:49:35 | #16419 |
| 2013 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:49:38 | #10083 |
| 2012 | 17th Annual Myrtle Beach Mini Marathon & Coastal 5KMyrtle Beach | SC | 1:37:52 | #223 |
| 2012 | Shamrock MarathonVirginia Beach | VA | 1:48:12 | #974 |
| 2012 | Capital City Half MarathonColumbus | OH | 2:02:35 | #2546 |
| 2012 | Alexandria Running FestivalAlexandria | VA | 2:08:27 | #469 |
| 2012 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:10:42 | #5181 |
| 2012 | First Energy Akron MarathonAkron | OH | 2:16:44 | #2547 |
| 2012 | St. Luke's Half Marathon & 5KAllentown | PA | 2:20:32 | #2493 |
| 2012 | Fargo Marathon WeekendFargo | ND | 2:21:17 | #4052 |
| 2012 | Cleveland Marathon & Half MarathonCleveland | OH | 2:26:15 | #4927 |
| 2012 | Marshall University MarathonHuntington | WV | 2:28:32 | #670 |
| 2012 | Rockfest Half MarathonHampton Beach | NH | 2:31:00 | #2706 |
| 2012 | Lost Dutchman MarathonApache Junction | AZ | 2:58:43 | #1032 |
| 2011 | Rock 'n' Roll Washington DCWashington | DC | 1:53:16 | #2805 |
| 2011 | Great Western Half Marathon and 10KSaint Charles | IL | 1:59:13 | #364 |
| 2011 | First Energy Akron MarathonAkron | OH | 2:29:35 | #2657 |
| 2011 | Monster DashMinneapolis | MN | 2:31:29 | #4231 |
| 2011 | Pittsburgh Marathon WeekendPittsburgh | PA | 2:32:42 | #6685 |
| 2011 | Lost Dutchman MarathonApache Junction | AZ | 2:40:56 | #882 |
| 2011 | Philadelphia MarathonPhiladelphia | PA | 2:43:09 | #8070 |
| 2010 | March Madness Half MarathonCary | IL | 1:53:03 | #527 |
| 2010 | Baltimore Running FestivalBaltimore | MD | 2:15:12 | #4407 |
| 2010 | First Energy Akron MarathonAkron | OH | 2:26:40 | #2555 |
| 2010 | Lost Dutchman MarathonApache Junction | AZ | 2:33:55 | #832 |
| 2010 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 3:00:25 | #7891 |
| 2009 | March Madness Half MarathonCary | IL | 1:33:14 | #133 |
| 2009 | Schaumburg Turkey Trot Half Marathon & 5KElk Grove Village | IL | 1:54:40 | #167 |
| 2009 | Lost Dutchman MarathonApache Junction | AZ | 2:27:19 | #677 |
| 2008 | City of Oaks MarathonRaleigh | NC | 1:48:27 | #430 |
| 2008 | Lost Dutchman MarathonApache Junction | AZ | 2:40:14 | #706 |
| 2008 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 3:17:07 | #3624 |
| 2007 | United Airlines NYC HalfNew York | NY | 1:45:58 | #2028 |
| 2007 | Jacksonville Bank Marathon, Half MarathonJacksonville | FL | 2:02:41 | #540 |
| 2007 | Rock 'n' Roll Arizona MarathonPhoenix | AZ | 2:29:16 | #11621 |
| 2007 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 2:36:46 | #3878 |
| 2007 | Lost Dutchman MarathonApache Junction | AZ | 3:02:53 | #686 |
| 2006 | Northwell Health Great South Bay RunBay Shore | NY | 1:35:07 | #30 |
| 2006 | Greater St. Louis MarathonSt. Louis | MO | 1:48:55 | #820 |
| 2006 | MO' Cowbell Marathon/Half-Marathon/10K/5KSaint Charles | MO | 1:51:13 | #416 |
| 2005 | Lost Dutchman MarathonApache Junction | AZ | 2:30:52 | #260 |
| 2004 | Borgess Run For The Health Of It!Kalamazoo | MI | 2:13:57 | #626 |
| 2003 | March Madness Half MarathonCary | IL | 1:32:37 | #141 |
| 2003 | Crystal Lake Half MarathonCrystal Lake | IL | 1:50:22 | #188 |
| 2003 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 2:52:59 | #2439 |
| 2002 | March Madness Half MarathonCary | IL | 1:34:44 | #298 |
| 2002 | 2025 500 Festival Running EventsIndianapolis | IN | 2:31:51 | #13053 |
| 2001 | 2025 500 Festival Running EventsIndianapolis | IN | 2:34:47 | #11899 |
| 2000 | Georgetown to Idaho Springs Half MarathonUnknown | CO | 1:57:03 | #1194 |
| 2000 | 2025 500 Festival Running EventsIndianapolis | IN | 2:35:05 | #8007 |
| 1999 | 2025 500 Festival Running EventsIndianapolis | IN | 2:26:41 | #10192 |
| 1998 | Georgetown to Idaho Springs Half MarathonUnknown | CO | 1:36:37 | #242 |
| 1998 | 2025 500 Festival Running EventsIndianapolis | IN | 2:43:29 | #12202 |
| 1995 | Buhl Half Marathon and 5KHermitage | PA | 2:07:47 | #241 |
| 1995 | 2025 500 Festival Running EventsIndianapolis | IN | 2:41:25 | #8964 |
| 1992 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 3:08:20 | #1554 |
| 1991 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 2:15:34 | #1226 |
| 1990 | New Prague Half MarathonNew Prague | MN | 1:37:23 | #209 |
| 1990 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 2:12:59 | #1351 |
| 1990 | The LESS Popular Brooklyn Half Marathon!Brooklyn | NY | 2:16:34 | #1450 |
| 1987 | Buhl Half Marathon and 5KHermitage | PA | 1:32:06 | #126 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
AZArizona
40 racesNYNew York
27 racesFLFlorida
23 racesVAVirginia
18 racesMDMaryland
17 racesPAPennsylvania
16 racesILIllinois
13 racesOHOhio
8 racesDCDistrict of Columbia
6 racesINIndiana
6 racesMNMinnesota
4 racesCOColorado
3 racesMIMichigan
3 racesMAMassachusetts
2 racesMOMissouri
2 racesNCNorth Carolina
2 racesUTUtah
2 racesIAIowa
1 raceNJNew Jersey
1 raceSCSouth Carolina
1 raceNVNevada
0 racesWIWisconsin
0 races50-State Challenge
22/ 51 states + DC
29 states to go