| Official Race Results | |||||||||
| Mason-Dixon 500 | Dover Downs International Speedway | |||||||||
| May 19, 1975 | Race 12 of 30 | |||||||||
| Average Speed: 100.82 mph | |||||||||
| Margin of Victory: 7 laps | Time of Race: 04:57:34 | ||||||||
| Lead Changes: 19 | |||||||||
| Cautions: 8 for 101 laps. | |||||||||
| Fin | St | Car | Driver | Make | Sponsor | Pts / Bonus | Laps | Status | Winnings |
| 1 | 1 | #21 | David Pearson | Mercury | Purolator | 185/10 | 500 | Running | $14,925 |
| 2 | 11 | #24 | Cecil Gordon | Chevrolet | Bob Stott Chevrolet | 170/0 | 493 | Running | $9,900 |
| 3 | 3 | #43 | Richard Petty | Dodge | STP | 165/0 | 490 | Running | $7,050 |
| 4 | 17 | #48 | James Hylton | Chevrolet | Nitro 9 | 160/0 | 487 | Running | $6,450 |
| 5 | 14 | #05 | Dave Sisco | Chevrolet | Reliable Plumbing | 155/0 | 486 | Running | $3,225 |
| 6 | 12 | #14 | Coo Coo Marlin | Chevrolet | Cunningham-Kelley | 155/5 | 482 | Running | $2,300 |
| 7 | 13 | #93 | Kenny Brightbill | Ford | Truxmore Industries | 146/0 | 480 | Running | $2,000 |
| 8 | 19 | #47 | Bruce Hill * | Chevrolet | Hill Racing | 142/0 | 475 | Running | $1,900 |
| 9 | 27 | #19 | Henley Gray | Chevrolet | Lafayette Racing | 138/0 | 468 | Running | $1,800 |
| 10 | 34 | #25 | Jabe Thomas | Chevrolet | Ward's Mobile Homes | 134/0 | 468 | Running | $1,700 |
| 11 | 2 | #15 | Buddy Baker | Ford | Bud Moore Engineering | 135/5 | 467 | Engine Failure-Wrecked | $1,750 |
| 12 | 20 | #64 | Elmo Langley | Ford | Central Dist/Pabst | 127/0 | 465 | Running | $1,500 |
| 13 | 26 | #67 | Buddy Arrington | Plymouth | Jesse R. Stanley Trucking | 124/0 | 464 | Running | $1,425 |
| 14 | 28 | #18 | Joe Frasson | Dodge | Frasson Racing | 121/0 | 453 | Running | $1,350 |
| 15 | 23 | #79 | Frank Warren | Dodge | Koa Of Dover | 118/0 | 448 | Running | $1,275 |
| 16 | 18 | #96 | Richard Childress | Chevrolet | L.C. Newton Trucking | 115/0 | 438 | Running | $1,200 |
| 17 | 15 | #7 | Dean Dalton | Ford | Belden Asphalt | 112/0 | 424 | Running | $1,125 |
| 18 | 16 | #70 | J.D. McDuffie | Chevrolet | Glenn's/Bel Aire Datsun | 109/0 | 421 | Engine Failure | $1,050 |
| 19 | 24 | #10 | Bill Champion | Ford | Rudd Auto Parts | 106/0 | 420 | Running | $1,000 |
| 20 | 9 | #71 | Dave Marcis | Dodge | K&K Insurance | 103/0 | 406 | Broken Ball Joint | $925 |
| 21 | 35 | #22 | John Harkins | Dodge | H & H Auto | PE | 382 | Engine Failure | $800 |
| 22 | 8 | #17 | Darrell Waltrip | Chevrolet | Terminal Transport | 97/0 | 370 | Engine Failure | $800 |
| 23 | 7 | #72 | Benny Parsons | Chevrolet | Kings Row Fireplaces | 99/5 | 360 | Engine Failure | $750 |
| 24 | 32 | #46 | Travis Tiller | Dodge | Skip's Auto Parts | 91/0 | 312 | Running | $700 |
| 25 | 21 | #30 | Walter Ballard | Chevrolet | Milford Stitching | 88/0 | 308 | Engine Failure | $675 |
| 26 | 29 | #23 | Earl Brooks | Dodge | Brooks Racing | 85/0 | 305 | Engine Failure | $650 |
| 27 | 4 | #11 | Cale Yarborough | Chevrolet | Holly Farms | 87/5 | 295 | Engine Failure | $700 |
| 28 | 10 | #88 | Donnie Allison | Chevrolet | Dean's Power Oil | 79/0 | 214 | Overheating | $625 |
| 29 | 5 | #90 | Dick Brooks | Ford | Truxmore | 76/0 | 189 | Engine Failure | $625 |
| 30 | 22 | #40 | D.k. Ulrich | Chevrolet | Garden State Auto/J & F | 73/0 | 163 | No Oil Pressure | $550 |
| 31 | 30 | #2 | Ed Negre | Dodge | 10,000 RPM Speed Equipment | 70/0 | 152 | Engine Failure | $540 |
| 32 | 31 | #57 | Joey Arrington | Dodge | J.R. Stanley Trucking | PE | 82 | Overheating | $530 |
| 33 | 6 | #54 | Lennie Pond | Chevrolet | Master Chevrolet | 64/0 | 66 | Engine Failure | $545 |
| 34 | 33 | #01 | Earle Canavan | Dodge | Kava Coffee | 61/0 | 57 | Engine Failure | $510 |
| 35 | 25 | #8 | Dick May | Dodge | Jones Chrysler-Plymouth | 58/0 | 43 | Quit | $500 |
| * Denotes Rookie | |||||||||