After starting CrossFit in 2009, Jennifer began competing on the CrossFit Maximus affiliate team at the Games in 2010 and 2012, the team just missing qualification in 2011. Jennifer made her individual CrossFit Games debut in 2013 after winning the Central East Regionals, and placing 22nd at the Games. She has competed at the CrossFit Games individually in 2013, 2016, and 2018. Barely missing qualifying to the Games in 2014 and 2015, Jennifer again qualified individually in 2016 where she placed 36th place. She experienced a ruptured plantar fascia in the first event on the Aromas Trail run, and continued competing over the course of the weekend despite the injury.