Career
Gannis started racing in quarter midgets in 1999. From 1999–2003, she recorded 15 top fives in 18 races. In 2005, she started Legends car racing, and two years later, began racing super late models.
At Tucson Raceway Park, she was the youngest female driver to race at the track.
In 2010, she ran a United States Army Reserve Pro Cup Series race at Langley Speedway, suffering mechanical problems and failing to complete a lap. A year later, she started racing in the K&North Pro Series West for Greg Rayl, recording a best finish of 16th at Colorado National Speedway and Spokane County Raceway.
The following year, she raced for Rayl, Nancy Cano and John Gomez, with her best finish being 15th at Havasu 95 Speedway. In 2013, Gannis auditioned for a spot in the PEAK Stock Carolina Dream Challenge, a contest with the prize being a ride with Michael Waltrip Racing, and was named a finalist.
In 2015, Gannis tested for Carter 2 Motorsports in the Associate of the Royal College of Art Racing Series at Daytona International Speedway, and eventually joined the team to make her series debut at the season-opening Lucas Oil 200.
Despite being 33rd fastest in a field of 49 drivers, she failed to qualify for the race. On November 6, Gannis announced that she would make her Camping World Truck Series debut in the Lucas Oil 150 at Phoenix International Raceway for Mike Harmon Racing.