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DK
David Kornfield
MaleWashington2008–2026
31
Total Finishes
10
Different Races
3
States (6%)
1:18:29
PR (5:59/mi)
1:27:28
Average
+0:03:04
Slower (first to last)
Medal House
2015
Mercer Island Rotary Half Marathon
1:18:29
#12 overall#11 gender
2015
St. Jude Rock 'n' Roll Seattle
1:25:26
#64 overall#55 gender
2015
Race to Robie Creek®
1:26:31
#6 overall#6 gender
2013
Race to Robie Creek®
1:24:22
#3 overall#3 gender
2012
Race to Robie Creek®
1:27:03
#7 overall#7 gender
2011
Race to Robie Creek®
1:25:00
#5 overall#5 gender
2010
Race to Robie Creek®
1:27:33
#8 overall#8 gender
2009
Run SF "Golden Gate City" 5K/10K/13.1
1:19:52
#8 overall#8 gender
2009
US Half Marathon
1:19:52
#8 overall#8 gender
2009
Race to Robie Creek®
1:33:16
#26 overall#25 gender
2008
Run SF "Golden Gate City" 5K/10K/13.1
1:30:00
#31 overall#30 gender
2008
Race to Robie Creek®
1:36:53
#63 overall#59 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Race to Robie Creek®Boise | ID | 1:33:04 | #20 |
| 2025 | Race to Robie Creek®Boise | ID | 1:34:30 | #34 |
| 2025 | Race to Robie Creek®Boise | ID | 1:34:30 | #34 |
| 2024 | Race to Robie Creek®Boise | ID | 1:31:30 | #19 |
| 2024 | Race to Robie Creek®Boise | ID | 1:31:31 | #19 |
| 2023 | Monterey Bay Half MarathonMonterey | CA | 1:19:35 | #48 |
| 2023 | Race to Robie Creek®Boise | ID | 1:34:07 | #24 |
| 2023 | Race to Robie Creek®Boise | ID | 1:34:07 | #24 |
| 2022 | Race to Robie Creek®Boise | ID | 1:36:42 | #33 |
| 2022 | Race to Robie Creek®Boise | ID | 1:36:43 | #33 |
| 2019 | Race to Robie Creek®Boise | ID | 1:25:42 | #10 |
| 2019 | Race to Robie Creek®Boise | ID | 1:25:42 | #10 |
| 2018 | Summer's Done 13.1Austin | TX | 1:19:29 | #27 |
| 2018 | Race to Robie Creek®Boise | ID | 1:27:19 | #9 |
| 2018 | Race to Robie Creek®Boise | ID | 1:27:19 | #9 |
| 2016 | Brooks Lake Sammamish Half Marathon presented by REIRedmond | WA | 1:18:45 | #11 |
| 2016 | Lake Sammamish Half | — | 1:18:45 | #11 |
| 2016 | Race to Robie Creek®Boise | ID | 1:24:02 | #9 |
| 2016 | Race to Robie Creek®Boise | ID | 1:24:02 | #9 |
| 2015 | Mercer Island Rotary Half MarathonMercer Island | WA | 1:18:29 | #12 |
| 2015 | St. Jude Rock 'n' Roll SeattleSeattle | WA | 1:25:26 | #64 |
| 2015 | Race to Robie Creek®Boise | ID | 1:26:31 | #6 |
| 2013 | Race to Robie Creek®Boise | ID | 1:24:22 | #3 |
| 2012 | Race to Robie Creek®Boise | ID | 1:27:03 | #7 |
| 2011 | Race to Robie Creek®Boise | ID | 1:25:00 | #5 |
| 2010 | Race to Robie Creek®Boise | ID | 1:27:33 | #8 |
| 2009 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 1:19:52 | #8 |
| 2009 | US Half Marathon | — | 1:19:52 | #8 |
| 2009 | Race to Robie Creek®Boise | ID | 1:33:16 | #26 |
| 2008 | Run SF "Golden Gate City" 5K/10K/13.1San Francisco | CA | 1:30:00 | #31 |
| 2008 | Race to Robie Creek®Boise | ID | 1:36:53 | #63 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
IDIdaho
22 racesCACalifornia
3 racesWAWashington
3 races50-State Challenge
3/ 50 states
47 states to go