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JW
Jack Williamson
MaleCalifornia2005–2026
18
Total Finishes
14
Different Races
10
States (20%)
1:23:30
PR (6:22/mi)
2:07:43
Average
+1:43:32
Slower (first to last)
Medal House
2018
HBF Run for a Reason
1:49:33
#827 overall#699 gender
2018
Summer's Done 13.1
2:12:10
#3332 overall#1899 gender
2016
Summer's Done 13.1
2:00:22
#42 overall#30 gender
2011
Two Cities Marathon
2:05:46
#954 overall#600 gender
2010
Two Cities Marathon
1:52:28
#443 overall#328 gender
2009
Silver Comet Half & Full Marathon
1:49:43
#304 overall#231 gender
2009
Two Cities Marathon
2:15:44
#1222 overall#663 gender
2008
OC Marathon - Half Marathon - 5K
1:58:44
#979 overall#737 gender
2008
The Unforgettable Staten Island Half Marathon!
2:13:05
#2704 overall#1827 gender
2008
Tucson Marathon
2:58:29
#1288 overall#534 gender
2006
Spinx Run Fest
2:06:28
#241 overall#142 gender
2005
2026 2XU Long Beach Marathon & Half Marathon
1:53:15
#683 overall#523 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Bend Marathon and HalfBend | OR | 3:36:47 | #1019 |
| 2025 | Philadelphia MarathonPhiladelphia | PA | 1:40:03 | #945 |
| 2025 | Snow Joke Half MarathonSeeley Lake | MT | 2:35:42 | #362 |
| 2022 | Arizona Half MarathonPeoria | AZ | 1:47:15 | #31 |
| 2021 | DEXTER-ANN ARBOR RUNDexter | MI | 1:33:20 | #127 |
| 2019 | Scranton Half MarathonScranton | PA | 1:23:30 | #46 |
| 2019 | Summer's Done 13.1Austin | TX | 2:25:12 | #4593 |
| 2018 | HBF Run for a ReasonPerth | WA | 1:49:33 | #827 |
| 2018 | Summer's Done 13.1Austin | TX | 2:12:10 | #3332 |
| 2016 | Summer's Done 13.1Austin | TX | 2:00:22 | #42 |
| 2011 | Two Cities MarathonFresno | CA | 2:05:46 | #954 |
| 2010 | Two Cities MarathonFresno | CA | 1:52:28 | #443 |
| 2009 | Silver Comet Half & Full MarathonMableton | GA | 1:49:43 | #304 |
| 2009 | Two Cities MarathonFresno | CA | 2:15:44 | #1222 |
| 2008 | OC Marathon - Half Marathon - 5KNewport Beach | CA | 1:58:44 | #979 |
| 2008 | The Unforgettable Staten Island Half Marathon!Staten Island | NY | 2:13:05 | #2704 |
| 2008 | Tucson MarathonTucson | AZ | 2:58:29 | #1288 |
| 2006 | Spinx Run FestGreenville | SC | 2:06:28 | #241 |
| 2005 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 1:53:15 | #683 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
5 racesTXTexas
3 racesAZArizona
2 racesPAPennsylvania
2 racesMIMichigan
1 raceMTMontana
1 raceNYNew York
1 raceOROregon
1 raceSCSouth Carolina
1 raceILIllinois
0 races50-State Challenge
10/ 51 states + DC
41 states to go