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KB
Krzysztof Bak
MaleIllinois2005–2026
7
Total Finishes
6
Different Races
2
States (4%)
1:15:10
PR (5:44/mi)
1:19:47
Average
+0:09:53
Slower (first to last)
Medal House
2026
18th Annual F^3 Lake Half Marathon & 5k
1:26:52
#53 overall#45 gender
2025
Fox Valley Marathon Races
1:21:28
#6 overall#6 gender
2014
First Midwest Half Marathon
1:15:10
#2 overall#2 gender
2013
March Madness Half Marathon
1:16:51
#7 overall#7 gender
2013
18th Annual F^3 Lake Half Marathon & 5k
1:23:37
#17 overall#15 gender
2009
Fort4Fitness Fall Festival
1:17:31
#8 overall#8 gender
2005
Life Time Chicago Half Marathon + 5K
1:16:59
#11 overall#11 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | 18th Annual F^3 Lake Half Marathon & 5kChicago | IL | 1:26:52 | #53 |
| 2025 | Fox Valley Marathon RacesSaint Charles | IL | 1:21:28 | #6 |
| 2014 | First Midwest Half MarathonPalos Heights | IL | 1:15:10 | #2 |
| 2013 | March Madness Half MarathonCary | IL | 1:16:51 | #7 |
| 2013 | 18th Annual F^3 Lake Half Marathon & 5kChicago | IL | 1:23:37 | #17 |
| 2009 | Fort4Fitness Fall FestivalFort Wayne | IN | 1:17:31 | #8 |
| 2005 | Life Time Chicago Half Marathon + 5KChicago | IL | 1:16:59 | #11 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
ILIllinois
6 racesINIndiana
1 race50-State Challenge
2/ 51 states + DC
49 states to go