| Official Race Results | |||||||||
| Mason-Dixon 500 | Dover Downs International Speedway | |||||||||
| May 18, 1980 | Race 12 of 31 | |||||||||
| Average Speed: 113.866 mph | |||||||||
| Margin of Victory: 25 seconds | Time of Race: 04:23:28 | ||||||||
| Lead Changes: 17 | |||||||||
| Cautions: 9 for 67 laps. | |||||||||
| Fin | St | Car | Driver | Make | Sponsor | Pts / Bonus | Laps | Status | Winnings |
| 1 | 8 | #15 | Bobby Allison | Ford | Hodgdon/Mike Curb | 180/5 | 500 | Running | $21,900 |
| 2 | 9 | #43 | Richard Petty | Chevrolet | STP | 175/5 | 500 | Running | $16,775 |
| 3 | 4 | #28 | Buddy Baker | Chevrolet | Napa/Regal Ride | 165/0 | 497 | Running | $7,800 |
| 4 | 6 | #47 | Harry Gant | Chevrolet | Race Hill Farm | 160/0 | 495 | Running | $7,530 |
| 5 | 19 | #44 | Terry Labonte | Chevrolet | Stratagraph | 155/0 | 494 | Running | $6,255 |
| 6 | 18 | #90 | Jody Ridley * | Ford | Truxmore/Sunny King | 150/0 | 492 | Running | $5,335 |
| 7 | 15 | #40 | Dick May | Chevrolet | Ulrich | 146/0 | 488 | Running | $4,275 |
| 8 | 20 | #3 | Richard Childress | Chevrolet | Crc Chemicals | 142/0 | 488 | Running | $4,065 |
| 9 | 25 | #24 | Cecil Gordon | Oldsmobile | Sadler Mtrs/Smith Used Cars | 138/0 | 476 | Running | $3,820 |
| 10 | 16 | #2 | Dale Earnhardt | Chevrolet | Mike Curb/Hodgdon | 134/0 | 475 | Engine Failure | $7,675 |
| 11 | 12 | #25 | Ronnie Thomas | Buick | Shelton Construction | 130/0 | 472 | Running | $3,460 |
| 12 | 17 | #64 | Tommy Gale | Ford | Sunny King Ford & Honda | 127/0 | 468 | Running | $3,240 |
| 13 | 23 | #17 | Roger Hamby | Chevrolet | Kings Inn Daytona | 124/0 | 464 | Running | $1,605 |
| 14 | 28 | #45 | Baxter Price | Chevrolet | Iron Peddlers/Mcwhirter | 121/0 | 457 | Running | $1,520 |
| 15 | 33 | #32 | Jim Ingram | Chevrolet | Ingram Racing | 118/0 | 437 | Running | $1,435 |
| 16 | 1 | #11 | Cale Yarborough | Chevrolet | Busch | 125/10 | 411 | Running | $7,800 |
| 17 | 7 | #7 | Dick Brooks | Chevrolet | Sanyo Electronics | 112/0 | 390 | Accident | $2,705 |
| 18 | 5 | #21 | Neil Bonnett | Mercury | Purolator | 114/5 | 376 | Engine Failure | $1,680 |
| 19 | 22 | #48 | James Hylton | Chevrolet | Palatine Automotive | 106/0 | 360 | Running | $2,400 |
| 20 | 2 | #88 | Darrell Waltrip | Chevrolet | Gatorade | 108/5 | 339 | Broken Valve | $5,960 |
| 21 | 13 | #42 | Kyle Petty | Chevrolet | STP | 100/0 | 290 | Accident | $900 |
| 22 | 3 | #27 | Benny Parsons | Chevrolet | Melling Tool Company | 102/5 | 283 | Accident | $5,650 |
| 23 | 11 | #30 | Tighe Scott | Chevrolet | Russ Togs | 94/0 | 279 | Accident | $775 |
| 24 | 32 | #63 | Jocko Maggiacomo | Oldsmobile | Shaw Motors | 91/0 | 278 | Engine Failure | $700 |
| 25 | 14 | #71 | Dave Marcis | Chevrolet | Buck Stove/Hudson Chev. | 88/0 | 264 | Engine Failure | $1,740 |
| 26 | 26 | #67 | Buddy Arrington | Dodge | Reid Trailer Sales | 85/0 | 264 | Engine Failure | $1,705 |
| 27 | 31 | #52 | Jimmy Means | Chevrolet | Thompson Industries | 82/0 | 224 | Rear Sway Bar | $1,670 |
| 28 | 34 | #34 | Nestor Peles | Oldsmobile | Peles Racing | 79/0 | 207 | Quit | $600 |
| 29 | 30 | #74 | Bobby Wawak | Chevrolet | Wooten's Texaco | 76/0 | 206 | Engine Failure | $575 |
| 30 | 10 | #75 | Bill Elswick | Chevrolet | Performance Boats | 73/0 | 109 | Accident | $1,075 |
| 31 | 24 | #79 | Junior Miller | Chevrolet | Miller Roofing | 70/0 | 106 | Oil Pump | $1,040 |
| 32 | 27 | #20 | Rick Newsom | Oldsmobile | Louise Smith Special | 67/0 | 61 | Engine Failure | $530 |
| 33 | 21 | #70 | J.D. McDuffie | Chevrolet | Bailey Excavating | 64/0 | 26 | Engine Failure | $1,020 |
| 34 | 29 | #99 | D.k. Ulrich | Chevrolet | Hollar Auto Parts | 61/0 | 2 | Engine Failure | $510 |
| * Denotes Rookie | |||||||||