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JK
Jonathan Kaufman
MaleIllinois2006–2026
40
Total Finishes
33
Different Races
8
States (16%)
1:26:47
PR (6:37/mi)
1:58:58
Average
+0:19:29
Slower (first to last)
Medal House
2012
Crystal Lake Half Marathon
1:46:01
#88 overall#74 gender
2012
Less Popular Brooklyn Half Marathon
1:53:43
#5345 overall#3793 gender
2012
Rock 'n' Roll Chicago Half Marathon
1:57:06
#2377 overall#1572 gender
2010
LONG ISLAND MARATHON FESTIVAL
2:04:24
#1706 overall#1115 gender
2009
13.1 Fort Lauderdale
1:54:22
#520 overall#384 gender
2008
Less Popular Brooklyn Half Marathon
1:34:33
#579 overall#517 gender
2008
2026 Napa to Sonoma Wine Country Half Marathon & Rosé 5K
1:39:28
#106 overall#75 gender
2008
2027 Publix Fort Lauderdale A1A Marathon, Half Marathon, 6K & Kids of Love Run, & Celsius 5k Presented by Colavita
2:04:37
#992 overall#615 gender
2006
Boston's Run To Remember
1:39:27
#592 overall#487 gender
2006
Ocean Running Club's Seaside Half Marathon and 5K
1:39:46
#34 overall#26 gender
2006
Big Lake Half Marathon
1:42:00
#192 overall#149 gender
2006
Tucson Marathon
1:47:23
#292 overall#204 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Hapalua Half MarathonHonolulu | HI | — | — |
| 2026 | Hapalua Half Marathon 2026 for elitesHonolulu | HI | — | — |
| 2025 | Shamrock'n Half MarathonSacramento | CA | 1:53:32 | #619 |
| 2025 | Nationwide Children's Hospital Columbus Marathon & 1/2 Marathon, Jesse Owens 5K, 1 Mile & Kids RunColumbus | OH | 1:58:56 | #2169 |
| 2024 | Run MalibuMalibu | CA | 1:26:47 | #32 |
| 2022 | Oakland Running FestivalOakland | CA | 1:44:57 | #346 |
| 2020 | Boston's Run To RememberBoston | MA | 2:39:38 | #1117 |
| 2020 | Boston's Run To RememberBoston | MA | 2:39:38 | #1119 |
| 2019 | Maine Marathon, Half Marathon and Marathon RelayPortland | ME | 2:04:23 | #914 |
| 2017 | United Airlines NYC HalfNew York | NY | 2:32:01 | #16364 |
| 2016 | Twin Lobster Half MarathonGloucester | MA | 1:41:15 | #38 |
| 2016 | Newburyport River Run Half Marathon & 5K | — | 1:42:21 | #85 |
| 2016 | Cambridge Half Marathon + 5KCambridge | MA | 1:42:35 | #823 |
| 2016 | North Shore ClassicHighland Park | IL | 2:04:33 | #692 |
| 2016 | Rock 'n' Roll Los Angeles Half MarathonLos Angeles | CA | 2:24:38 | #3635 |
| 2015 | North Shore Half Marathon | — | 1:43:37 | #40 |
| 2015 | North Shore ClassicHighland Park | IL | 1:55:08 | #575 |
| 2015 | Northshore half marathonHighland Park | IL | 1:55:08 | #575 |
| 2015 | Brewers Mini Marathonmilwaukee | WI | 2:00:40 | #831 |
| 2015 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:03:13 | #2199 |
| 2014 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 1:52:46 | #2106 |
| 2014 | North Shore ClassicHighland Park | IL | 1:57:00 | #390 |
| 2014 | Publix Atlanta Marathon, Half Marathon & 5KAtlanta | GA | 2:05:00 | #2750 |
| 2014 | Thanksgiving Day Half MarathonAtlanta | GA | 2:05:46 | #2871 |
| 2014 | Asheville Craft Beer Half Marathon & 10K/5KAsheville | NC | 2:28:41 | #609 |
| 2013 | Jingle Bell Half MarathonAtkinson | NH | 1:47:53 | #164 |
| 2013 | North Shore ClassicHighland Park | IL | 1:56:31 | #898 |
| 2013 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:03:25 | #3880 |
| 2013 | Thanksgiving Day Half MarathonAtlanta | GA | 2:08:01 | #3215 |
| 2013 | Bands On The Run Half Marathon and 5K | — | 2:38:43 | #461 |
| 2012 | Crystal Lake Half MarathonCrystal Lake | IL | 1:46:01 | #88 |
| 2012 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:53:43 | #5345 |
| 2012 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 1:57:06 | #2377 |
| 2012 | North Shore ClassicHighland Park | IL | 2:01:10 | #782 |
| 2010 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 2:04:24 | #1706 |
| 2009 | 13.1 Fort LauderdaleFort Lauderdale | FL | 1:54:22 | #520 |
| 2008 | Less Popular Brooklyn Half MarathonBrooklyn | NY | 1:34:33 | #579 |
| 2008 | 2026 Napa to Sonoma Wine Country Half Marathon & Rosé 5KNapa | CA | 1:39:28 | #106 |
| 2008 | 2027 Publix Fort Lauderdale A1A Marathon, Half Marathon, 6K & Kids of Love Run, & Celsius 5k Presented by ColavitaFort Lauderdale | FL | 2:04:37 | #992 |
| 2006 | Boston's Run To RememberBoston | MA | 1:39:27 | #592 |
| 2006 | Ocean Running Club's Seaside Half Marathon and 5KSeaside Park | NJ | 1:39:46 | #34 |
| 2006 | Big Lake Half MarathonAlton Bay | NH | 1:42:00 | #192 |
| 2006 | Tucson MarathonTucson | AZ | 1:47:23 | #292 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
ILIllinois
11 racesCACalifornia
5 racesMAMassachusetts
5 racesNYNew York
4 racesGAGeorgia
3 racesFLFlorida
2 racesAZArizona
1 raceNJNew Jersey
1 race50-State Challenge
8/ 50 states
42 states to go