Chicagoultra.org

Spring and Fall Ultra Marathons on Chicago's Lakefront

Results

Spring 50k (George Cheung Memorial Race) Fall 50/50
Racecourse Records:
M, 37: 2:54:06.5 Jeremy Arthur 2026
M, 37: 2:57:29 Dave Dunham 2001
M, 45: 2:58:30.2 Samuel Bradbury 2026
M, 28: 2:58:54.5 Nolan McKenna 2024
F, 41: 3:48:08 Lisa Menninger 2006		 Racecourse Records:
50K
M, 27: 3:04:48.5 Nolan McKenna 2022
M, 29: 3:15:09 Wes Judd 2020
F, 42: 3:34:56 Camille Shiflett 2016
50M
M, 27: 5:12:36 Zach Bitter 2013
F, 36: 6:20:27 Tera Moody 2017
April 2000 November 2000
April 2001 November 2001
April 2002 2002 50k | 2002 50m
April 2003 2003 50k | 2003 50m
April 2004 2004 50k | 2004 50m
April 2005 2005 50k | 2005 50m
April 2006 2006 50k | 2006 50m
March 2007 2007 50k | 2007 50m | 2007 Marathon
April 2008
 2008 50k | 2008 50m
April 2009 2009 50k | 2009 50m
March 2010 2010 50k | 2010 50m
March 2011 2011 50k | 2011 50m
March 2012 2012 50k | 2012 50m
March 2013 2013 50k | 2013 50m
April 2014 2014 50k | 2014 50m
March 2015 2015 50k | 2015 50m
April 2016 2016 50k | 2016 50m
April 2017 2017 50k | 2017 50m
April 2018 2018 50k | 2018 50m
March 2019 2019 50k | 2019 50m
March 2020
Race Cancelled
 2020 50k | 2020 50m
March 2021 2021 50k | 2021 50m
March 2022 2022 50k | 2022 50m
March 2023 2023 50k | 2023 50m
March 2024: 50k | Half Marathon | Buildup Run 2024 50k | 2024 50m
March 2025: 50k | Half Marathon | Buildup Run | RD's Run Report2025 50k | 2025 50m | RD's Run Report
March 2026: 50k | Half Marathon | Buildup Run | RD's Run Report2026 50k | 2026 50m