The 1991 Budweiser at The Glen racing event was officially sanctioned as part of the NASCAR Winston Cup Series. Taking place on August 11, 1991, at Watkins Glen International, this race was the 18th race completed out of the 29 attempted during the 1991 NASCAR Winston Cup Series season. The race was won by Ernie Irvan driving the No. 4 Kodak Chevrolet Lumina for Morgan-McClure Motorsports, but was marred by an early crash that claimed the life of veteran driver J. D. McDuffie. It also marked the final top-ten finish for seven-time Winston Cup Champion Richard Petty.