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JD
Joselyn Duff
FemaleCalifornia2007–2024
19
Total Finishes
13
Different Races
2
States (4%)
2:18:01
PR (10:32/mi)
2:39:02
Average
-0:20:01
Faster (first to last)
Medal House
2014
Kaiser Permanente San Francisco Half Marathon & 5K
2:42:45
#3943 overall#1852 gender
2013
The Giant Race
2:26:21
#3517 overall#1744 gender
2013
Kaiser Permanente San Francisco Half Marathon & 5K
2:27:45
#4623 overall#2182 gender
2013
2026 National Women's Half Marathon and 8K
2:43:24
#10522 overall#10089 gender
2012
The Giant Race
2:28:58
#2927 overall#1540 gender
2011
Urban Cow Half Marathon
2:18:01
#1906 overall#915 gender
2011
Rock 'n' Roll Las Vegas
2:21:17
#13490 overall#6753 gender
2011
American River Parkway Half Marathon
2:25:32
#1530 overall#867 gender
2011
Clarksburg Country Run
2:27:20
#393 overall#174 gender
2010
Clarksburg Country Run
2:27:34
#453 overall#220 gender
2010
Urban Cow Half Marathon
2:31:49
#2236 overall#1243 gender
2007
2026 Disneyland® Half Marathon Weekend presented by HONDA
3:06:55
#7649 overall#4191 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2024 | Yosemite Half MarathonBass Lake | CA | 2:46:54 | #2153 |
| 2023 | Rock 'n' Roll San DiegoSan Diego | CA | 4:05:04 | #14067 |
| 2019 | Armed Forces Half MarathonConcord | CA | 2:24:25 | #376 |
| 2019 | Victory RaceRichmond | CA | 2:36:40 | #248 |
| 2019 | Rock 'n' Roll Las VegasLas Vegas | NV | 3:19:25 | #14033 |
| 2018 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:18:15 | #2732 |
| 2018 | Armed Forces Half MarathonConcord | CA | 2:26:29 | #492 |
| 2016 | Folsom Blues BreakoutFolsom | CA | 2:22:20 | #589 |
| 2016 | Rock 'n' Roll San DiegoSan Diego | CA | 3:09:09 | #14507 |
| 2016 | Rock 'n' Roll Las VegasLas Vegas | NV | 3:32:23 | #20218 |
| 2015 | The Giant RaceSan Francisco | CA | 2:21:55 | #2064 |
| 2015 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:28:13 | #3863 |
| 2015 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:29:46 | #10617 |
| 2014 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:42:45 | #3943 |
| 2014 | Rock 'n' Roll Las VegasLas Vegas | NV | 3:19:34 | #22462 |
| 2013 | The Giant RaceSan Francisco | CA | 2:26:21 | #3517 |
| 2013 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:27:45 | #4623 |
| 2013 | 2026 National Women's Half Marathon and 8KWashington | DC | 2:43:24 | #10522 |
| 2012 | The Giant RaceSan Francisco | CA | 2:28:58 | #2927 |
| 2011 | Urban Cow Half MarathonSacramento | CA | 2:18:01 | #1906 |
| 2011 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:21:17 | #13490 |
| 2011 | American River Parkway Half MarathonSacramento | CA | 2:25:32 | #1530 |
| 2011 | Clarksburg Country RunClarksburg | CA | 2:27:20 | #393 |
| 2010 | Clarksburg Country RunClarksburg | CA | 2:27:34 | #453 |
| 2010 | Urban Cow Half MarathonSacramento | CA | 2:31:49 | #2236 |
| 2007 | 2026 Disneyland® Half Marathon Weekend presented by HONDAAnaheim | CA | 3:06:55 | #7649 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
20 racesNVNevada
5 races50-State Challenge
2/ 51 states + DC
49 states to go