[5][3] He raced at Road America's June Sprints SCCA, along with Blackhawk Farms, Gingerman Raceway, and the Mid-Ohio Sports Car Course.

[3] Hammann set the Kiel High School track and field record in the 800 meters and qualified for the state competition.

[3] After graduating from high school, he went to college to study mechanical engineering at the University of North Carolina at Charlotte,[1] hoping to become a test driver.

[6] As he was finishing high school, Hammann heard about a racing competition on television show called GT Academy.

[3] The show gives PlayStation Gran Turismo video game drivers a chance to compete in a variety of scenarios on real racing tracks.

[3] The experience caused Hammann to see the potential of show and he began to take the competition very seriously; he studied other top competitors' lap times and frequently practiced.

Hammann made his first NASCAR Xfinity Series start as a road course ringer at Watkins Glen International on August 6, 2016.

[10] His car was involved with a Kyle Busch spin; he recovered until his race ended with an oil leak after completing 67 of 82 laps for a 28th-place finish.