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SC
Shannon Costello
FemaleMaryland1999–2025
20
Total Finishes
17
Different Races
7
States (14%)
1:48:35
PR (8:17/mi)
2:21:06
Average
+0:08:29
Slower (first to last)
Medal House
2010
Rock 'n' Roll New Orleans
2:01:48
#2338 overall#926 gender
2010
Boston's Run To Remember
2:12:31
#3196 overall#1680 gender
2010
Rock 'n' Roll Chicago Half Marathon
2:29:13
#11893 overall#6684 gender
2010
Rock ‘n’ Roll Denver Marathon & 1/2 Marathon
2:47:28
#7481 overall#4940 gender
2009
Boston's Run To Remember
2:00:27
#2123 overall#950 gender
2009
Rock 'n' Roll Virgina Beach Half Marathon
2:07:13
#5104 overall#1946 gender
2009
Rock 'n' Roll Washington DC
2:09:07
#2785 overall#1315 gender
2009
Baltimore Running Festival
2:19:06
#4880 overall#2370 gender
2008
Rock 'n' Roll Washington DC
2:13:44
#2135 overall#1033 gender
2007
Rock 'n' Roll Washington DC
2:17:24
#1800 overall#866 gender
2003
Heart Mini Marathon
1:59:43
#3202 overall#1266 gender
1999
Dayton River Corridor Classic
2:28:01
#697 overall#228 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2025 | Barron Collier Companies Naples Half MarathonNaples | FL | 2:05:33 | #676 |
| 2025 | Annapolis Running FestivalAnnapolis | MD | 2:36:29 | #772 |
| 2025 | Annapolis Running FestivalAnnapolis | MD | 2:36:30 | #772 |
| 2024 | REAL SIMPLE Women's Half MarathonCentral Park | NY | 2:10:30 | #3124 |
| 2024 | Annapolis Running FestivalAnnapolis | MD | 2:37:45 | #770 |
| 2024 | Annapolis Running FestivalAnnapolis | MD | 2:37:46 | #771 |
| 2019 | JSRC RunAPaloozaAsbury Park | NJ | 1:48:35 | #267 |
| 2019 | Runapalooza Asbury ParkAsbury Park | NJ | 1:48:36 | #267 |
| 2018 | Annapolis Running ClassicAnnapolis | MD | 2:24:52 | #960 |
| 2016 | Annapolis Running ClassicAnnapolis | MD | 2:04:47 | #808 |
| 2016 | Fort Worth MarathonFort Worth | TX | 2:06:54 | #168 |
| 2015 | DRC Half Marathon and 5KDallas | TX | 2:11:55 | #818 |
| 2015 | Luau 5K, 10K, & 13.1M at Athens, GA (19)Athens | GA | 2:45:29 | #1761 |
| 2014 | The LegendLaingsburg | MI | 1:54:57 | #88 |
| 2014 | Annapolis Running ClassicAnnapolis | MD | 1:58:48 | #816 |
| 2013 | Baltimore Running FestivalBaltimore | MD | 2:02:53 | #3021 |
| 2013 | Annapolis Running ClassicAnnapolis | MD | 2:03:57 | #977 |
| 2013 | Rock 'n' Roll Washington DCWashington | DC | 2:06:57 | #8224 |
| 2012 | Baltimore Running FestivalBaltimore | MD | 2:06:09 | #4053 |
| 2012 | 2026 Disneyland® Half Marathon Weekend presented by HONDAAnaheim | CA | 2:59:34 | #10279 |
| 2011 | Baltimore Running FestivalBaltimore | MD | 2:08:52 | #3706 |
| 2011 | Kaiser Permanente Colfax MarathonDenver | CO | 2:37:50 | #3080 |
| 2011 | Rock ‘n’ Roll Denver Marathon & 1/2 MarathonDenver | CO | 2:41:08 | #7292 |
| 2010 | Rock 'n' Roll New OrleansNew Orleans | LA | 2:01:48 | #2338 |
| 2010 | Boston's Run To RememberBoston | MA | 2:12:31 | #3196 |
| 2010 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:29:13 | #11893 |
| 2010 | Rock ‘n’ Roll Denver Marathon & 1/2 MarathonDenver | CO | 2:47:28 | #7481 |
| 2009 | Boston's Run To RememberBoston | MA | 2:00:27 | #2123 |
| 2009 | Rock 'n' Roll Virgina Beach Half MarathonVirginia Beach | VA | 2:07:13 | #5104 |
| 2009 | Rock 'n' Roll Washington DCWashington | DC | 2:09:07 | #2785 |
| 2009 | Baltimore Running FestivalBaltimore | MD | 2:19:06 | #4880 |
| 2008 | Rock 'n' Roll Washington DCWashington | DC | 2:13:44 | #2135 |
| 2007 | Rock 'n' Roll Washington DCWashington | DC | 2:17:24 | #1800 |
| 2003 | Heart Mini MarathonCincinnati | OH | 1:59:43 | #3202 |
| 1999 | Dayton River Corridor ClassicDayton | OH | 2:28:01 | #697 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
MDMaryland
12 racesDCDistrict of Columbia
4 racesCOColorado
3 racesOHOhio
2 racesTXTexas
2 racesGAGeorgia
1 racePAPennsylvania
0 races50-State Challenge
7/ 51 states + DC
44 states to go