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JD
Joseph Duffy
MaleIllinois2004–2026
25
Total Finishes
20
Different Races
8
States (16%)
1:32:27
PR (7:03/mi)
2:11:20
Average
-1:12:14
Faster (first to last)
Medal House
2023
Good Life Halfsy
1:40:39
#519 overall
2022
North Shore Classic
2:36:18
#629 overall#337 gender
2021
Urban Cow Half Marathon
1:43:40
#251 overall#174 gender
2017
Rock 'n' Roll Chicago Half Marathon
2:41:37
#7670 overall#3517 gender
2017
Chicago Country Sole / Chicago Fall Classic
3:19:16
#697 overall#270 gender
2014
Philadelphia Marathon
2:12:22
#7025 overall#3277 gender
2013
Rock 'n' Roll Chicago Half Marathon
1:51:40
#1790 overall#1249 gender
2013
Rock ‘n’ Roll Philadelphia Half Marathon
2:02:59
#7354 overall#4046 gender
2011
Get Lucky Half Marathon
2:10:27
#1000 overall#476 gender
2011
Greater St. Louis Marathon
2:22:44
#5849 overall#2932 gender
2006
Rock ‘n’ Roll Philadelphia Half Marathon
2:49:06
#10294 overall#5504 gender
2004
Rock ‘n’ Roll Philadelphia Half Marathon
3:06:30
#7280 overall#4190 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | The Notre Dame Holy HalfNotre Dame | IN | 1:32:27 | #62 |
| 2026 | Shamrock'n Half MarathonSacramento | CA | 1:42:08 | #330 |
| 2026 | San Diego Beach & Bay Half MarathonSan Diego | CA | 1:54:16 | #697 |
| 2025 | Shamrock'n Half MarathonSacramento | CA | 1:39:33 | #237 |
| 2025 | Shipyard Old Port Half MarathonPortland | ME | 1:47:06 | #464 |
| 2025 | United Airlines NYC HalfNew York | NY | 1:48:40 | #6811 |
| 2025 | NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklyn | NY | 2:03:56 | #11034 |
| 2025 | Long Grove's Oktoberfest Half Marathon, 10K & 5KLong Grove | IL | 2:35:48 | #325 |
| 2025 | Hometown Half Marathon & 5k/10k - Greater ChicagoChicago | IL | 2:52:02 | #280 |
| 2024 | Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartford | CT | 1:44:16 | #512 |
| 2024 | Manda RunLoomis | CA | 1:45:44 | #33 |
| 2024 | Shamrock'n Half MarathonSacramento | CA | 1:55:46 | #603 |
| 2024 | Hometown Half Marathon & 5k/10k - Greater ChicagoChicago | IL | 2:25:36 | #153 |
| 2023 | Good Life HalfsyLincoln | NE | 1:40:39 | #519 |
| 2023 | Lincoln MarathonLincoln | NE | 1:44:21 | #373 |
| 2023 | Run the ParkwayCarmichael | CA | 1:53:47 | #47 |
| 2023 | Hometown Half Marathon & 5k/10k - Greater ChicagoChicago | IL | 2:47:25 | #134 |
| 2022 | North Shore ClassicHighland Park | IL | 2:36:18 | #629 |
| 2021 | Urban Cow Half MarathonSacramento | CA | 1:43:40 | #251 |
| 2017 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:41:37 | #7670 |
| 2017 | Chicago Country Sole / Chicago Fall ClassicChicago | IL | 3:19:16 | #697 |
| 2014 | Philadelphia MarathonPhiladelphia | PA | 2:12:22 | #7025 |
| 2013 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 1:51:40 | #1790 |
| 2013 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 2:02:59 | #7354 |
| 2011 | Get Lucky Half MarathonMinneapolis | MN | 2:10:27 | #1000 |
| 2011 | Greater St. Louis MarathonSt. Louis | MO | 2:22:44 | #5849 |
| 2006 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 2:49:06 | #10294 |
| 2004 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 3:06:30 | #7280 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
ILIllinois
8 racesCACalifornia
7 racesNENebraska
2 racesNYNew York
2 racesINIndiana
1 raceMEMaine
1 raceMNMinnesota
1 raceMOMissouri
1 race50-State Challenge
8/ 51 states + DC
43 states to go