The 1998 MBNA Gold 400 was the 26th stock car race of the 1998 NASCAR Winston Cup Series season and the 30th iteration of the event. The race was held on Sunday, September 20, 1998, in Dover, Delaware at Dover International Speedway, a 1-mile (1.6 km) permanent oval-shaped racetrack. The race took the scheduled 400 laps to complete. At race's end, Roush Racing driver Mark Martin would dominate the race weekend to take his 28th career NASCAR Winston Cup Series victory and his sixth victory of the season. To fill out the podium, Hendrick Motorsports driver Jeff Gordon and Penske-Kranefuss Racing driver Jeremy Mayfield would finish second and third, respectively.