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DR
David Rosenfeld
MaleCalifornia2004–2025
32
Total Finishes
22
Different Races
8
States (16%)
1:33:43
PR (7:09/mi)
2:07:57
Average
+0:24:47
Slower (first to last)
Medal House
2011
Marin County Half Marathon
2:12:46
#344 overall#177 gender
2011
US Half Marathon 2 "The Other Half"
2:17:30
#1391 overall#775 gender
2010
St. Jude Rock 'n' Roll Seattle
1:43:43
#800 overall#555 gender
2010
Rock 'n' Roll Nashville
2:16:26
#8906 overall#4550 gender
2009
Eugene Marathon 2024
1:38:23
#204 overall#155 gender
2009
Eugene Marathon
1:38:23
#204 overall#155 gender
2009
Rock 'n' Roll Nashville
2:10:51
#5923 overall#3431 gender
2008
Vancouver Lake Half Marathon & 4 Mile Run
1:33:43
#47 overall#38 gender
2008
North Face Endurance Challenge - Championships
2:51:11
#173 overall#116 gender
2006
Kaiser Permanente San Francisco Half Marathon & 5K
1:55:30
#1744 overall#1194 gender
2005
Run SF "Golden Gate City" 5K/10K/13.1
1:58:59
#435 overall#433 gender
2004
Rock 'n' Roll Nashville
2:02:48
#2365 overall#1489 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2025 | Presidio 10 RaceSan Francisco | CA | 2:27:35 | #957 |
| 2024 | OUC Orlando Half MarathonOrlando | FL | 1:52:27 | #659 |
| 2024 | United Airlines NYC HalfNew York | NY | 2:56:03 | #26165 |
| 2023 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:23:41 | #2138 |
| 2022 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:13:48 | #1547 |
| 2020 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:06:40 | #1797 |
| 2019 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:05:25 | #1751 |
| 2018 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:03:34 | #1994 |
| 2017 | The Giant RaceSan Francisco | CA | 1:59:56 | #714 |
| 2016 | Boston's Run To RememberBoston | MA | 1:44:47 | #756 |
| 2016 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:15:36 | #2564 |
| 2015 | Carlsbad MarathonCarlsbad | CA | 1:42:02 | #439 |
| 2015 | Carlsbad Marathon | — | 1:42:02 | #439 |
| 2015 | 2026 HiTOPS Princeton Half MarathonPrinceton | NJ | 1:50:53 | #288 |
| 2015 | Love Run Half MarathonPhiladelphia | PA | 1:52:29 | #1252 |
| 2015 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:04:18 | #2530 |
| 2015 | La Jolla Half Marathon | — | 2:08:59 | #2081 |
| 2015 | La Jolla Half Marathon, 10K, & 5KLa Jolla | CA | 2:09:53 | #2136 |
| 2015 | North Face Endurance Challenge - ChampionshipsSan Francisco | CA | 2:59:34 | #798 |
| 2014 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:32:10 | #472 |
| 2014 | North Face Endurance Challenge - ChampionshipsSan Francisco | CA | 2:46:40 | #741 |
| 2013 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:42:16 | #1878 |
| 2013 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 2:06:09 | #3232 |
| 2013 | Whole Foods Tiburon Half MarathonBelvedere Tiburon | CA | 2:06:30 | #259 |
| 2013 | North Face Endurance Challenge - ChampionshipsSan Francisco | CA | 2:46:05 | #603 |
| 2012 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:48:44 | #2630 |
| 2012 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 1:59:28 | #2457 |
| 2012 | Marin County Half MarathonSan Rafael | CA | 2:03:47 | #295 |
| 2011 | Marin County Half MarathonSan Rafael | CA | 2:12:46 | #344 |
| 2011 | US Half Marathon 2 "The Other Half" | — | 2:17:30 | #1391 |
| 2011 | North Face Endurance Challenge - ChampionshipsSan Francisco | CA | 2:31:17 | #284 |
| 2010 | St. Jude Rock 'n' Roll SeattleSeattle | WA | 1:43:43 | #800 |
| 2010 | Rock 'n' Roll NashvilleNashville | TN | 2:16:26 | #8906 |
| 2009 | Eugene Marathon 2024Eugene | OR | 1:38:23 | #204 |
| 2009 | Eugene MarathonEugene | OR | 1:38:23 | #204 |
| 2009 | Rock 'n' Roll NashvilleNashville | TN | 2:10:51 | #5923 |
| 2008 | Vancouver Lake Half Marathon & 4 Mile RunVancouver | WA | 1:33:43 | #47 |
| 2008 | North Face Endurance Challenge - ChampionshipsSan Francisco | CA | 2:51:11 | #173 |
| 2006 | Kaiser Permanente San Francisco Half Marathon & 5KSan Francisco | CA | 1:55:30 | #1744 |
| 2005 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 1:58:59 | #435 |
| 2004 | Rock 'n' Roll NashvilleNashville | TN | 2:02:48 | #2365 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
23 racesPAPennsylvania
4 racesOROregon
2 racesFLFlorida
1 raceMAMassachusetts
1 raceNJNew Jersey
1 raceNYNew York
1 race--
0 races50-State Challenge
8/ 50 states
42 states to go