Race: Mason-Dixon 300
NASCAR Grand National Series: Race 41 of 48
Date: September 20, 1970
Track: Dover International Speedway
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Mason-Dixon 300 Race Information
| Winner | Richard Petty | Car | No. 43 Plymouth |
| Team / Owner | Petty Enterprises | Winner Start | 2nd |
| Started First | Bobby Isaac | Most Laps Led | Richard Petty (186) |
| Race Distance | 300 miles (300 laps) | Track Length | 1 miles |
| Track Type | Paved oval | Starters | 36 |
| Different Leaders | 3 | Lead-Lap Finishers | 2 |
| Points Leader After Race | Bobby Isaac | Season Race | 41 of 48 |
Mason-Dixon 300 Race Results
| Fin | Start | No. | Driver | Team / Owner | Make | Laps | Led | Status | Points |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 43 | Richard Petty | Petty Enterprises | Plymouth | 300 | 186 | running | 100 |
| 2 | 4 | 22 | Bobby Allison | Mario Rossi (Owner) | Dodge | 300 | 0 | running | 98 |
| 3 | 36 | 99 | Charlie Glotzbach | Nichels Engineering | Dodge | 299 | 31 | running | 0 |
| 4 | 5 | 17 | David Pearson | Holman Moody | Ford | 296 | 0 | running | 94 |
| 5 | 6 | 72 | Benny Parsons | DeWitt Racing | Ford | 296 | 0 | running | 92 |
| 6 | 1 | 71 | Bobby Isaac | K&K Insurance Racing | Dodge | 291 | 0 | running | 90 |
| 7 | 25 | 48 | James Hylton | Hylton Engineering | Ford | 289 | 0 | running | 88 |
| 8 | 14 | 10 | Bill Champion | Champion Racing | Ford | 285 | 0 | running | 86 |
| 9 | 29 | 68 | Larry Baumel | Allan Schlauer (Owner) | Ford | 285 | 0 | running | 84 |
| 10 | 11 | 24 | Cecil Gordon | Gordon Racing | Ford | 281 | 0 | running | 82 |
| 11 | 3 | 6 | Buddy Baker | Owens Racing | Dodge | 280 | 83 | accident | 80 |
| 12 | 32 | 54 | Bill Dennis | Bill Dennis (Owner) | Chevrolet | 278 | 0 | running | 78 |
| 13 | 12 | 79 | Frank Warren | Warren Racing | Plymouth | 277 | 0 | running | 76 |
| 14 | 13 | 4 | John Sears | John Sears (Owner) | Dodge | 275 | 0 | running | 74 |
| 15 | 19 | 06 | Neil Castles | Neil Castles (Owner) | Dodge | 272 | 0 | running | 72 |
| 16 | 16 | 74 | Bill Shirey | Bill Shirey (Owner) | Plymouth | 268 | 0 | running | 70 |
| 17 | 31 | 58 | Buck Baker | Robert Brown (Owner) | Chevrolet | 267 | 0 | running | 0 |
| 18 | 27 | 65 | Joe Phipps | Joe Phipps (Owner) | Chevrolet | 266 | 0 | running | 66 |
| 19 | 8 | 64 | Elmo Langley | Langley-Woodfield Racing | Mercury | 262 | 0 | engine | 64 |
| 20 | 21 | 26 | Earl Brooks | Brooks Racing | Ford | 253 | 0 | battery | 62 |
| 21 | 18 | 76 | Ben Arnold | Arnold Racing | Ford | 252 | 0 | running | 0 |
| 22 | 20 | 87 | Lee Roy Carrigg | John Pemberton (Owner) | Ford | 245 | 0 | running | 58 |
| 23 | 7 | 30 | Dave Marcis | Marcis Auto Racing | Dodge | 203 | 0 | a-frame | 56 |
| 24 | 17 | 18 | Joe Frasson | Frasson Racing | Plymouth | 199 | 0 | oil leak | 54 |
| 25 | 23 | 70 | J.D. McDuffie | McDuffie Racing | Mercury | 116 | 0 | oil pressure | 52 |
| 26 | 15 | 19 | Henley Gray | Gray Racing | Ford | 95 | 0 | radiator | 50 |
| 27 | 30 | 03 | Tommy Gale | Smokey Yunick Racing | Mercury | 88 | 0 | engine | 48 |
| 28 | 10 | 8 | Ed Negre | Negre Racing | Ford | 82 | 0 | overheating | 46 |
| 29 | 34 | 0 | Cliff Tyler | — | Chevrolet | 79 | 0 | accident | 0 |
| 30 | 24 | 45 | Bill Seifert | Seifert Racing | Ford | 74 | 0 | accident | 42 |
| 31 | 33 | 92 | Roy Tyner | Roy Tyner (Owner) | Ford | 42 | 0 | valve | 40 |
| 32 | 28 | 67 | Dick May | Ron Ronacher (Owner) | Ford | 17 | 0 | oil leak | 38 |
| 33 | 22 | 84 | Raymond Williams | Buster Davis (Owner) | Ford | 14 | 0 | vibration | 36 |
| 34 | 26 | 77 | John Kenney | Bob Freeman (Owner) | Ford | 6 | 0 | transmission | 34 |
| 35 | 9 | 25 | Jabe Thomas | Robertson Racing | Plymouth | 2 | 0 | engine | 32 |
| 36 | 35 | 34 | Wendell Scott | Scott Racing | Ford | 1 | 0 | engine | 30 |
Season Navigation
1970 NASCAR Grand National Series Results