Kammala wannan jumla: Teresa ta jagoranci Dale Earnhardt, Inc. (DEI) a lokacin gasar zakarun Busch Series guda hudu a 1998, 1999, 2004 da 2005 da kuma gasar zakarun Craftsman Truck Series guda biyu a 1996 da 1998. Gasar farko ta Daytona 500 a matsayin mai mallakar kungiyar ta faru ne lokacin da direban Chevrolet # 15 wanda Michael Waltrip ya tuka ya ci nasara a
Gasar shekara ta 2001. Nasarar, duk da haka, an rufe shi da mutuwar mijinta a cikin hadari a lokacin zagaye na karshe na tseren.