The 1990 Miller Genuine Draft 200 was the seventh stock car race of the 1990 NASCAR Winston West Series season. The race was held on Sunday, September 30, 1990, at Tri-City Raceway, a 0.500 mi (0.805 km) trioval shaped racetrack in West Richland, Washington. The race took the scheduled 200 laps to complete. The race was won by Roy Smith, his second win of the season and the last of his career. Smith took the lead from Mike Chase on lap 148, beating Chase off of pit road after yellow flag stops.[2] Defending series champion Bill Schmitt finished third, and Terry Fisher and Robert Sprague rounded out the top five.
Tri-City Raceway is a 0.500 mi (0.805 km) asphalt oval race track located in West Richland, Washington. The track was built to represent and is named after the three nearby cities to the racetrack. The track is the only 0.500 mi (0.805 km) mile paved trioval in North America.