1991 Petty Enterprises NASCAR Winston Cup statistics
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| Race # | Track | Driver | Start | Finish | Car # | Sponsor | Engine | Crew Chief | Qualifying Speed | Laps | X Led | Laps Led | Status | Money | Points |
| 1 | Daytona | Richard Petty | 3 | 19 | 43 | STP | Pontiac | Loomis | 195 | 0 | 0 | running | 43120 | 106 | |
| 2 | Richmond | Richard Petty | 23 | 11 | 43 | STP | Pontiac | Loomis | 398 | 0 | 0 | running | 7750 | 130 | |
| 3 | Rockingham | Richard Petty | 25 | 15 | 43 | STP | Pontiac | Loomis | 486 | 0 | 0 | running | 9900 | 118 | |
| 4 | Atlanta | Richard Petty | 30 | 38 | 43 | STP | Pontiac | Loomis | 188 | 0 | 0 | engine | 6240 | 49 | |
| 5 | Darlington | Richard Petty | 30 | 37 | 43 | STP | Pontiac | Loomis | 52 | 0 | 0 | engine | 5750 | 52 | |
| 6 | Bristol | Richard Petty | 33 | 17 | 43 | STP | Pontiac | Loomis | 496 | 0 | 0 | running | 7225 | 112 | |
| 7 | North Wilkesboro | Richard Petty | 33 | 16 | 43 | STP | Pontiac | Loomis | 397 | 0 | 0 | running | 6550 | 115 | |
| 8 | Martinsville | Richard Petty | 12 | 14 | 43 | STP | Pontiac | Loomis | 495 | 0 | 0 | running | 7500 | 121 | |
| 9 | Talladega | Richard Petty | 26 | 40 | 43 | STP | Pontiac | Loomis | 2 | 0 | 0 | accident | 5500 | 43 | |
| 10 | Charlotte | Richard Petty | 24 | 20 | 43 | STP | Pontiac | Loomis | 383 | 0 | 0 | accident | 10000 | 103 | |
| 11 | Dover | Richard Petty | 31 | 17 | 43 | STP | Pontiac | Loomis | 494 | 0 | 0 | running | 6050 | 112 | |
| 12 | Sonoma | Richard Petty | 39 | 34 | 43 | STP | Pontiac | Loomis | 59 | 0 | 0 | accident | 5200 | 61 | |
| 13 | Pocono | Richard Petty | 23 | 11 | 43 | STP | Pontiac | Loomis | 200 | 0 | 0 | running | 10450 | 130 | |
| 14 | Michigan | Richard Petty | 36 | 35 | 43 | STP | Pontiac | Loomis | 166 | 0 | 0 | valve | 7360 | 58 | |
| 15 | Daytona | Richard Petty | 21 | 22 | 43 | STP | Pontiac | Loomis | 159 | 0 | 0 | running | 8490 | 97 | |
| 16 | Pocono | Richard Petty | 17 | 31 | 43 | STP | Pontiac | Loomis | 97 | 0 | 0 | accident | 6575 | 70 | |
| 17 | Talladega | Richard Petty | 20 | 18 | 43 | STP | Pontiac | Loomis | 187 | 0 | 0 | running | 10880 | 109 | |
| 18 | Watkins Glen | Richard Petty | 31 | 9 | 43 | STP | Pontiac | Loomis | 90 | 0 | 0 | running | 11640 | 138 | |
| 19 | Michigan | Richard Petty | 23 | 23 | 43 | STP | Pontiac | Loomis | 195 | 0 | 0 | running | 8350 | 94 | |
| 20 | Bristol | Richard Petty | 30 | 12 | 43 | STP | Pontiac | Loomis | 491 | 0 | 0 | running | 8125 | 127 | |
| 21 | Darlington | Richard Petty | 30 | 16 | 43 | STP | Pontiac | Loomis | 363 | 0 | 0 | running | 9380 | 115 | |
| 22 | Richmond | Richard Petty | 19 | 24 | 43 | STP | Pontiac | Loomis | 393 | 1 | 1 | running | 5550 | 96 | |
| 23 | Dover | Richard Petty | 29 | 20 | 43 | STP | Pontiac | Loomis | 389 | 0 | 0 | engine | 6200 | 103 | |
| 24 | Martinsville | Richard Petty | 29 | 30 | 43 | STP | Pontiac | Loomis | 348 | 0 | 0 | accident | 4500 | 73 | |
| 25 | North Wilkesboro | Richard Petty | 33 | 19 | 43 | STP | Pontiac | Loomis | 396 | 0 | 0 | running | 5975 | 106 | |
| 26 | Charlotte | Richard Petty | 39 | 12 | 43 | STP | Pontiac | Loomis | 329 | 0 | 0 | running | 11400 | 127 | |
| 27 | Rockingham | Richard Petty | 31 | 16 | 43 | STP | Pontiac | Loomis | 485 | 0 | 0 | running | 9700 | 115 | |
| 28 | Phoenix | Richard Petty | 20 | 41 | 43 | STP | Pontiac | Loomis | 89 | 0 | 0 | accident | 3250 | 40 | |
| 29 | Atlanta | Richard Petty | 30 | 22 | 43 | STP | Pontiac | Loomis | 319 | 0 | 0 | running | 7425 | 97 |

