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SD
Sean Duncan
MaleCalifornia2007–2026
45
Total Finishes
31
Different Races
13
States (26%)
1:07:22
PR (5:09/mi)
2:20:30
Average
+1:07:11
Slower (first to last)
Medal House
2011
Rock 'n' Roll New Orleans
1:39:13
#431 overall#344 gender
2011
Carlsbad Marathon
2:04:57
#2646 overall#1480 gender
2011
Tri-City Medical Center Carlsbad Marathon
2:04:57
#2648 overall#1481 gender
2011
La Jolla Half Marathon, 10K, & 5K
2:26:38
#4593 overall#2448 gender
2010
La Jolla Half Marathon, 10K, & 5K
2:04:41
#2245 overall#1432 gender
2010
La Jolla Half Marathon
2:04:41
#2244 overall#1432 gender
2009
Kaiser Permanente Colfax Marathon
2:10:51
#1198 overall#598 gender
2009
The Denver Post Colorado Colfax Marathon
2:10:51
#1123 overall#581 gender
2008
Dallas Marathon Weekend
2:23:52
#3482 overall#1816 gender
2008
Dallas White Rock Marathon
2:23:52
#3485 overall
2008
Shamrock'n Half Marathon
2:25:18
#1837 overall#823 gender
2007
Kenner's Ole Man River Half Marathon
1:48:04
#71 overall#61 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | DONNA Marathon WeekendJacksonville Beach | FL | 2:08:49 | #1324 |
| 2026 | Seattle Cherry Blossom RunSeattle | WA | 2:55:15 | #1258 |
| 2025 | REVEL Mt CharlestonLas Vegas | NV | 1:31:38 | #63 |
| 2024 | Rio Grande Half Marathon and One Medal 5k Run/WalkAlbuquerque | NM | 1:47:26 | #30 |
| 2024 | 2025 500 Festival Running EventsIndianapolis | IN | 2:12:17 | #5323 |
| 2023 | Corvallis Half MarathonCorvallis | OR | 1:56:02 | #208 |
| 2023 | Corvallis Half Marathon and 5KCorvallis | OR | 1:56:02 | — |
| 2023 | Kentucky Derby Festival Race WeekendLouisville | KY | 3:54:12 | #6051 |
| 2022 | Carlsbad MarathonCarlsbad | CA | 3:16:21 | #2858 |
| 2022 | Kentucky Derby Festival Race WeekendLouisville | KY | 3:58:58 | #4757 |
| 2018 | Byers Peak Stampede Half Marathon & 5K RunFraser | CO | 2:09:32 | #47 |
| 2018 | Kentucky Derby Festival Race WeekendLouisville | KY | 3:42:01 | #7977 |
| 2017 | Encinitas Half MarathonEncinitas | CA | 2:15:54 | #2265 |
| 2017 | Encinitas Half Marathon | — | 2:15:54 | #2265 |
| 2017 | Kentucky Derby Festival Race WeekendLouisville | KY | 3:52:40 | #8565 |
| 2016 | New Bedford Half MarathonNew Bedford | MA | 1:10:50 | #28 |
| 2016 | HBF Run for a ReasonPerth | WA | 1:47:40 | #678 |
| 2016 | Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort Collins | CO | 2:05:45 | #626 |
| 2015 | Kentucky Derby Festival Race WeekendLouisville | KY | 3:47:19 | #10136 |
| 2014 | New Bedford Half MarathonNew Bedford | MA | 1:09:36 | #12 |
| 2014 | Kentucky Derby Festival Race WeekendLouisville | KY | 4:05:30 | #11486 |
| 2013 | New Bedford Half MarathonNew Bedford | MA | 1:07:22 | #4 |
| 2013 | New Bedford Half Marathon | — | 1:07:22 | #4 |
| 2013 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:41:31 | #3295 |
| 2013 | Kenner's Ole Man River Half MarathonKenner | LA | 1:45:38 | #74 |
| 2013 | Carlsbad MarathonCarlsbad | CA | 2:07:54 | #2848 |
| 2013 | Tri-City Medical Center Carlsbad Marathon | — | 2:07:54 | #2850 |
| 2013 | Kentucky Derby Festival Race WeekendLouisville | KY | 4:09:36 | #11362 |
| 2012 | Monadnock 1/2 Marathon & 2 Person Relay | — | 1:16:07 | #1 |
| 2012 | California Classic Half MarathonFresno | CA | 1:58:58 | #386 |
| 2012 | Kentucky Derby Festival Race WeekendLouisville | KY | 3:40:31 | #11481 |
| 2011 | Rock 'n' Roll New OrleansNew Orleans | LA | 1:39:13 | #431 |
| 2011 | Carlsbad MarathonCarlsbad | CA | 2:04:57 | #2646 |
| 2011 | Tri-City Medical Center Carlsbad Marathon | — | 2:04:57 | #2648 |
| 2011 | La Jolla Half Marathon, 10K, & 5KLa Jolla | CA | 2:26:38 | #4593 |
| 2011 | La Jolla Half Marathon | — | 2:26:38 | #4593 |
| 2010 | La Jolla Half Marathon, 10K, & 5KLa Jolla | CA | 2:04:41 | #2245 |
| 2010 | La Jolla Half Marathon | — | 2:04:41 | #2244 |
| 2009 | Kaiser Permanente Colfax MarathonDenver | CO | 2:10:51 | #1198 |
| 2009 | The Denver Post Colorado Colfax Marathon | — | 2:10:51 | #1123 |
| 2008 | Dallas Marathon WeekendDallas | TX | 2:23:52 | #3482 |
| 2008 | Dallas White Rock Marathon | — | 2:23:52 | #3485 |
| 2008 | Shamrock'n Half MarathonSacramento | CA | 2:25:18 | #1837 |
| 2007 | Kenner's Ole Man River Half MarathonKenner | LA | 1:48:04 | #71 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
8 racesKYKentucky
8 racesLALouisiana
3 racesCOColorado
3 racesMAMassachusetts
3 racesWAWashington
2 racesOROregon
2 racesTXTexas
1 raceNYNew York
1 raceNMNew Mexico
1 raceINIndiana
1 raceNVNevada
1 raceFLFlorida
1 race50-State Challenge
13/ 50 states
37 states to go