| 1991 Winston Cup Race Winners | |||
| Race # | Location | Race Name | Winner |
| non-points | Daytona, FL | Busch Clash | Dale Earnhardt |
| 1 | Daytona, FL | Daytona 500 | Ernie Irvan |
| 2 | Richmond,VA | Pontiac Excitement 400 | Dale Earnhardt |
| 3 | Rockingham, NC | Goodwrench 500 | Kyle Petty |
| 4 | Atlanta, GA | Motorcraft Quality Parts 500 | Ken Schrader |
| 5 | Darlington, SC | TransSouth 500 | Ricky Rudd |
| 6 | Bristol, TN | Valleydale Meats 500 | Rusty Wallace |
| 7 | North Wilkesboro, NC | First Union 400 | Darrell Waltrip |
| 8 | Martinsville, VA | Hanes 500 | Dale Earnhardt |
| 9 | Talladega, AL | Winston 500 | Harry Gant |
| non-points | Concord, NC | The Winston Select | Davey Allison |
| 10 | Charlotte, NC | Coca-Cola 600 | Davey Allison |
| 11 | Dover Downs, DE | Budweiser 500 | Ken Schrader |
| 12 | Sears Point, CA | Banquet Frozen Foods 300 | Davey Allison |
| 13 | Pocono, PA | Champion Spark Plug 500 | Darrell Waltrip |
| 14 | Michigan | Miller Genuine Draft 400 | Davey Allison |
| 15 | Daytona, FL | Pepsi 400 | Bill Elliott |
| 16 | Pocono, PA | Miller Genuine Drift 500 | Rusty Wallace |
| 17 | Talladega, AL | DieHard 500 | Dale Earnhardt |
| 18 | Watkins Glen, NY | Budweiser at the Glen | Ernie Irvan |
| 19 | Michigan | Champion Spark Plug 400 | Dale Jarrett |
| 20 | Bristol, TN | Bud 500 | Alan Kulwicki |
| 21 | Darlington, SC | Heinz Southern 500 | Harry Gant |
| 22 | Richmond, VA | Miller Genuine Draft 400 | Harry Gant |
| 23 | Dover Downs, DE | Peak Antifreeze 500 | Harry Gant |
| 24 | Martinsville, VA | Goody's 500 | Harry Gant |
| 25 | North Wilkesboro, NC | Tyson Holly Farms 400 | Dale Earnhardt |
| 26 | Charlotte, NC | Mellow Yello 500 | Geoff Bodine |
| 27 | Rockingham, NC | AC Delco 400 | Davey Allison |
| 28 | Phoenix, AZ | Pyroil Chemicals 500 | Davey Allison |
| 29 | Atlanta, GA | Hardee's 500 | Mark Martin |