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DK
David Kos
MaleNew York1991–2025
44
Total Finishes
20
Different Races
9
States (18%)
1:37:52
PR (7:28/mi)
2:16:06
Average
+1:47:00
Slower (first to last)
Medal House
1999
Rock ‘n’ Roll Philadelphia Half Marathon
1:52:26
#3039 overall#2320 gender
1998
Less Popular Brooklyn Half Marathon
1:46:44
#801 overall#670 gender
1998
NYCRUNS Brooklyn Ice Cream Social Half Marathon
1:54:05
#1031 overall#798 gender
1998
Fairfield Road Races
1:54:28
#1118 overall#872 gender
1997
Fairfield Road Races
1:53:27
#801 overall#666 gender
1996
LONG ISLAND MARATHON FESTIVAL
1:44:32
#810 overall#715 gender
1996
Less Popular Brooklyn Half Marathon
1:59:44
#1228 overall#974 gender
1994
LONG ISLAND MARATHON FESTIVAL
1:40:53
#826 overall#751 gender
1994
Less Popular Brooklyn Half Marathon
1:44:14
#432 overall#380 gender
1993
LONG ISLAND MARATHON FESTIVAL
1:37:52
#536 overall#498 gender
1993
Less Popular Brooklyn Half Marathon
1:38:56
#292 overall#269 gender
1991
Less Popular Brooklyn Half Marathon
1:53:42
#841 overall#726 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2025 | Philadelphia MarathonPhiladelphia | PA | 3:40:42 | #11584 |
| 2023 | Philadelphia MarathonPhiladelphia | PA | 3:32:16 | #12878 |
| 2022 | Philadelphia MarathonPhiladelphia | PA | 3:24:01 | #10022 |
| 2021 | Philadelphia MarathonPhiladelphia | PA | 3:18:47 | #7609 |
| 2019 | Philadelphia MarathonPhiladelphia | PA | 3:00:27 | #10922 |
| 2018 | Philadelphia MarathonPhiladelphia | PA | 2:57:23 | #9883 |
| 2017 | Hapalua Hawaii's Half MarathonHonolulu | HI | 3:14:08 | #5031 |
| 2016 | All American Half MarathonFort Bragg | NC | 2:05:25 | #601 |
| 2016 | Philadelphia MarathonPhiladelphia | PA | 2:45:39 | #9237 |
| 2015 | Charleston Half MarathonCharleston | SC | 2:59:18 | #2427 |
| 2012 | Rock 'n' Roll New OrleansNew Orleans | LA | 2:28:34 | #8292 |
| 2012 | Philadelphia MarathonPhiladelphia | PA | 2:29:50 | #8459 |
| 2011 | Rock 'n' Roll New OrleansNew Orleans | LA | 2:22:24 | #5757 |
| 2011 | Providence Rhode RacesEast Providence | RI | 2:23:44 | #1996 |
| 2011 | Eident Sports Half Marathon | — | 2:24:46 | #1983 |
| 2011 | Philadelphia MarathonPhiladelphia | PA | 2:25:10 | #6631 |
| 2010 | Philadelphia MarathonPhiladelphia | PA | 2:11:12 | #4431 |
| 2009 | Philadelphia MarathonPhiladelphia | PA | 2:37:48 | #5816 |
| 2008 | River Run Half MarathonBerea | OH | 1:51:49 | #267 |
| 2008 | Philadelphia MarathonPhiladelphia | PA | 2:19:56 | #3392 |
| 2007 | River Run Half MarathonBerea | OH | 1:55:15 | #309 |
| 2005 | NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklyn | NY | 2:01:16 | #1658 |
| 2005 | Hook Mountain Half Marathon & Rockland Lake 10KValley Cottage | NY | 2:06:12 | #185 |
| 2003 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 2:05:26 | #2309 |
| 2001 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:55:11 | #3280 |
| 2001 | NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklyn | NY | 1:59:04 | #1350 |
| 2000 | NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklyn | NY | 1:52:39 | #936 |
| 2000 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:53:07 | #1183 |
| 1999 | Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphia | PA | 1:52:26 | #3039 |
| 1999 | Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartford | CT | 1:56:59 | #635 |
| 1999 | NYRR Fred Lebow Half MarathonNew York | NY | 1:57:40 | #1895 |
| 1998 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:46:44 | #801 |
| 1998 | NYCRUNS Brooklyn Ice Cream Social Half MarathonBrooklyn | NY | 1:54:05 | #1031 |
| 1998 | Fairfield Road RacesFairfield | CT | 1:54:28 | #1118 |
| 1997 | Fairfield Road RacesFairfield | CT | 1:53:27 | #801 |
| 1996 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 1:44:32 | #810 |
| 1996 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:59:44 | #1228 |
| 1994 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 1:40:53 | #826 |
| 1994 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:44:14 | #432 |
| 1993 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 1:37:52 | #536 |
| 1993 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:38:56 | #292 |
| 1991 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:53:42 | #841 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
NYNew York
16 racesPAPennsylvania
14 racesCTConnecticut
3 racesOHOhio
2 racesLALouisiana
2 racesRIRhode Island
1 raceSCSouth Carolina
1 raceNCNorth Carolina
1 raceHIHawaii
1 race50-State Challenge
9/ 50 states
41 states to go