Atlanta 300
Atlanta Motor Speedway
1.5 Mile Paved Oval
200 Laps/300 Miles
June 26, 1966
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
Points |
| 1 | 1 | Mario Andretti | 1 | Dean Van Lines | Brawner Hawk | Ford | 200 | 2:09:12 139.319 | 600 |
| 2 | 4 | Billy Foster | 27 | Jim Robbins | Vollstedt | Ford | 199 | Flagged | 480 |
| 3 | 2 | Gordon Johncock | 72 | Weinberger Homes | Gerhardt | Ford | 197 | Flagged | 420 |
| 4 | 6 | Chuck Hulse | 12 | Wynn's | Watson | Ford | 196 | Flagged | 360 |
| 5 | 15 | Al Smith | 25 | Dayton Steel Wheel | Watson FE | Offy | 191 | Flagged | 300 |
| 6 | 3 | Don Branson | 4 | Leader Card | Gerhardt | Ford | 188 | Flagged | 240 |
| 7 | 21 | Johnny Boyd | 41 | Prestone | BRP | Ford | 186 | Flagged | 180 |
| 8 | 29 | Arnie Knepper | 95 | Leader Card | Watson FE | Offy | 184 | Flagged | 150 |
| 9 | 16 | Sam Sessions | 86 | Leader Card | Watson | Offy | 182 | Flagged | 120 |
| 10 | 14 | Al Miller (Krulac) | 85 | Caves Buick | Gerhardt | Offy SC | 176 | Flagged | 90 |
| 11 | 26 | Chuck Arnold | 80 | California Speed Shop | Halibrand | Offy | 173 | Flagged | 60 |
| 12 | 20 | Jim McElreath | 3 | Zink-Urschel-Slick | Brabham | Ford | 172 | Flagged | 30 |
| 13 | 24 | Bobby Grim | 39 | Racing Associates | Watson FE | Offy | 172 | Magneto | |
| 14 | 23 | Bobby Unser | 66 | Jim Robbins | Vollstedt | Ford | 164 | Engine | |
| 15 | 18 | Carl Williams | 77 | Dayton Steel Wheel | Gerhardt | Ford | 159 | Flagged | |
| 16 | 8 | Al Unser | 24 | American Red Ball | Lola | Ford | 149 | Lost oil pressure | |
| 17 | 10 | Ronnie Duman | 96 | Harrison | Eisert | Ford | 141 | Engine | |
| 18 | 27 | Ron Lux | 55 | Barnett Bros. | Kuzma FE | Offy | 140 | Engine | |
| 19 | 19 | Larry Dickson | 34 | Michner Petroleum | Lola | Ford | 123 | Engine | |
| 20 | 11 | Bob Harkey | 81 | Central Excavating | Gerhardt | Offy | 99 | Rear end | |
| 21 | 28 | Joe Leonard | 11 | Vita Fresh Orange Juice | Huffaker | Offy SC | 74 | Broken fuel line | |
| 22 | 5 | Art Pollard | 76 | Pure Firebird | Gerhardt | Offy SC | 64 | Caught fire, pits | |
| 23 | 30 | Dick Atkins | 98 | Agajanian REV 500 | Shrike | Offy SC | 64 | Lost hose | |
| 24 | 12 | Gary Congdon | 54 | Valvoline | Huffaker | Offy | 59 | Engine | |
| 25 | 22 | Bruce Jacobi | 44 | Heger & Compton | Vollstedt | Offy | 50 | Rear end | |
| 26 | 17 | Jim Hurtubise | 56 | Gerhardt | Gerhardt | Offy SC | 48 | Fuel leak | |
| 27 | 13 | Roger McCluskey | 8 | G. C. Murphy | Eagle | Ford | 34 | Fuel pump | |
| 28 | 9 | Bud Tingelstad | 22 | Federal Engineering | Gerhardt | Offy SC | 34 | Fuel line | |
| 29 | 7 | A. J. Foyt | 82 | Sheraton-Thompson | Lotus | Ford | 5 | Broken rear end | |
| 30 | 25 | Tommy Copp | 94 | Gerhardt | Gerhardt | Offy | 0 | Wrecked, fire | |
| -- | -- | Leo Caldwell | 84 | Gehlhausen | Kurtis 4000D | Offy | -- | DNS, too slow, S6 | |
| -- | -- | Gary Bettenhausen | 61 | McManus Bros. | Halibrand | Offy | -- | Wrecked practice | |
| -- | -- | Ray Duckworth | 97 | Stoye Racing | Stoye D | Offy | -- | DNS, too slow, S4 | |
| -- | -- | Wally Dallenbach | 24 | Ken Brenn | Meskowski D | Offy | -- | DNS, too slow, S1 | |
| -- | -- | Dick Guldstrand | 49 | Anson | Trout-Barnes | Offy | -- | Wrecked practice | |
| -- | -- | John Hollansworth | 20 | S & D | Meskowski D | Offy | -- | DNS, too slow, S3 | |
| -- | -- | Arnie Knepper | 26 | Lucy | Lola | Offy | -- | Wrecked practice | |
| -- | -- | Dave Paul | 23 | Valiant Homes | Halibrand | Offy | -- | DNS, too slow, S5 | |
| -- | -- | Greg Weld | 59 | STP | Kurtis FE | Novi SC | -- | Did not qualify | |
| -- | -- | Gig Stephens | 71 | Fairchild-Hiller | Halibrand | Offy | -- | Did not qualify, S2 | |
| -- | -- | George Snider | 2 | Sheraton-Thompson | Coyote | Ford | -- | Did not qualify |
| Lap Leaders | Total | Laps |
| Mario Andretti | 200 | 1-200 |