NASCAR Seri Grand National musim 1966
Rekapitulasi musim

| 0 | 1 | 2 | 3 | 4 | 5 | 6 |
| --- | --- | --- | --- | --- | --- | --- |
| No. | Tanggal | Lomba | Sirkuit | Pemenang | Kedua | Ketiga |
| 1 | 14-nov | Georgia Cracker 300 | Augusta Speedway1 | Richard Petty | Bobby Isaac | Ned Jarrett |
| 2 | 23-jan | Motor Trend 500 | Riverside International Raceway | Dan Gurney | David Pearson | Paul Goldsmith |
| 3 | 25-feb | Daytona 500 Qualifier #1 | Daytona International Speedway | Paul Goldsmith | Richard Petty | Don White |
| 4 | 25-feb | Daytona 500 Qualifier #2 | Daytona International Speedway | Earl Balmer | Jim Hurtubise | Dick Hutcherson |
| 5 | 27-feb | Daytona 500 | Daytona International Speedway | Richard Petty | Cale Yarborough | David Pearson |
| 6 | 13-mrt | Peach Blossom 500 | North Carolina Speedway | Paul Goldsmith | Cale Yarborough | Bobby Allison |
| 7 | 20-mrt | Southeastern 400 | Bristol Motor Speedway | Dick Hutcherson | Paul Lewis | James Hylton |
| 8 | 27-mrt | Atlanta 500 | Atlanta Motor Speedway | Jim Hurtubise | Fred Lorenzen | Dick Hutcherson |
| 9 | 3-apr | Hickory 250 | Hickory Motor Speedway | David Pearson | Curtis Turner | Bobby Isaac |
| 10 | 7-apr | Columbia 200 | Columbia Speedway | David Pearson | Paul Goldsmith | Tom Pistone |
| 11 | 9-apr | Greenville 200 | Greenville-Pickens Speedway | David Pearson | Richard Petty | Tiny Lund |
| 12 | 11-apr | Race 12 | Bowman Gray Stadium | David Pearson | Tom Pistone | Richard Petty |
| 13 | 17-apr | Gwyn Staley 400 | North Wilkesboro Speedway | Jim Paschal | G.C. Spencer | David Pearson |
| 14 | 24-apr | Virginia 500 | Martinsville Speedway | Jim Paschal | Paul Goldsmith | Richard Petty |
| 15 | 30-apr | Rebel 400 | Darlington Raceway | Richard Petty | Paul Goldsmith | David Pearson |
| 16 | 7-mei | Tidewater 250 | Langley Field Speedway | Richard Petty | James Hylton | Neil Castles |
| 17 | 10-mei | Speedy Morelock 200 | Middle Georgia Raceway | Richard Petty | Tom Pistone | Bobby Allison |
| 18 | 13-mei | Independent 250 | Starlite Speedway2 | Darel Dieringer | Clyde Lynn | Wendell Scott |
| 19 | 15-mei | Richmond 250 | Richmond International Raceway | David Pearson | Richard Petty | J.T. Putney |
| 20 | 22-mei | World 600 | Charlotte Motor Speedway | Marvin Panch | G.C. Spencer | Don White |
| 21 | 29-mei | Race 21 | Dog Track Speedway3 | David Pearson | Tiny Lund | James Hylton |
| 22 | 2-jun | Asheville 300 | New Asheville Speedway | David Pearson | J.T. Putney | John Sears |
| 23 | 4-jun | Race 23 | Piedmont Interstate Fairgrounds | Elmo Langley | Neil Castles | Doug Cooper |
| 24 | 9-jun | East Tennessee 200 | Smoky Mountain Raceway | David Pearson | Buck Baker | Paul Lewis |
| 25 | 12-jun | Fireball 300 | Asheville-Weaverville Speedway | Richard Petty | David Pearson | Paul Lewis |
| 26 | 15-jun | Beltsville 200 | Beltsville Speedway | Tiny Lund | James Hylton | Hank Thomas |
| 27 | 25-jun | Pickens 200 | Greenville-Pickens Speedway | David Pearson | Tom Pistone | Elmo Langley |
| 28 | 4-jul | Firecracker 400 | Daytona International Speedway | Sam McQuagg | Darel Dieringer | Jim Paschal |
| 29 | 7-jul | Race 29 | Old Dominion Speedway4 | Elmo Langley | John Sears | James Hylton |
| 30 | 10-jul | Race 30 | Bridgehampton Raceway5 | David Pearson | James Hylton | Marvin Panch |
| 31 | 12-jul | Race 31 | Oxford Plains Speedway6 | Bobby Allison | Tiny Lund | Richard Petty |
| 32 | 14-jul | Race 32 | Fonda Speedway7 | David Pearson | Richard Petty | Rene Charland |
| 33 | 16-jul | Race 33 | Islip Speedway | Bobby Allison | James Hylton | Ned Jarrett |
| 34 | 24-jul | Volunteer 500 | Bristol Motor Speedway | Paul Goldsmith | Richard Petty | David Pearson |
| 35 | 28-jul | Smokey Mountain 200 | Smoky Mountain Raceway | Paul Lewis | David Pearson | J.T. Putney |
| 36 | 30-jul | Nashville 400 | Music City Motorplex | Richard Petty | Buck Baker | Bobby Allison |
| 37 | 7-aug | Dixie 400 | Atlanta Motor Speedway | Richard Petty | Buddy Baker | Sam McQuagg |
| 38 | 18-aug | Sandlapper 200 | Columbia Speedway | David Pearson | Richard Petty | Curtis Turner |
| 39 | 21-aug | Western North Carolina 500 | Asheville-Weaverville Speedway | Darel Dieringer | G.C. Spencer | James Hylton |
| 40 | 24-aug | Maryland 200 | Beltsville Speedway | Bobby Allison | Elmo Langley | James Hylton |
| 41 | 27-aug | Myers Brothers 250 | Bowman Gray Stadium | David Pearson | Richard Petty | James Hylton |
| 42 | 5-sep | Southern 500 | Darlington Raceway | Darel Dieringer | Richard Petty | David Pearson |
| 43 | 9-sep | Buddy Shuman 250 | Hickory Motor Speedway | David Pearson | Richard Petty | Paul Lewis |
| 44 | 11-sep | Capital City 300 | Richmond International Raceway | David Pearson | Buck Baker | Paul Lewis |
| 45 | 18-sep | Joe Weatherly 150 | Occoneechee Speedway | Dick Hutcherson | David Pearson | Paul Lewis |
| 46 | 25-sep | Old Dominion 500 | Martinsville Speedway | Fred Lorenzen | Darel Dieringer | Bobby Allison |
| 47 | 2-okt | Wilkes 400 | North Wilkesboro Speedway | Dick Hutcherson | David Pearson | Paul Lewis |
| 48 | 16-okt | National 500 | Charlotte Motor Speedway | LeeRoy Yarbrough | Darel Dieringer | Paul Goldsmith |
| 49 | 30-okt | American 500 | North Carolina Speedway | Fred Lorenzen | Don White | Ned Jarrett |
1 Dua belas balapan diadakan antara tahun 1962 dan 1969 di Augusta di Augusta Speedway.
2 Balapan satu kali diadakan pada tahun 1966 di [[Monroe, North Carolina]|Monroe]] di Starlite Speedway.
3 Tujuh balapan diadakan di Currituck County antara tahun 1962 dan 1966 di Dog Track Speedway.
4 Tujuh balapan diadakan antara tahun 1958 dan 1966 di Manassas di Old Dominion Speedway.
5 Empat balapan diadakan di Bridgehampton di Bridgehampton Raceway antara tahun 1958 dan 1966.
6 Antara tahun 1966 dan 1968, tiga balapan diadakan di Oxford, Maine di Oxford Plains Speedway.
7 Empat balapan diadakan antara tahun 1955 dan 1968 di Fonda, Montgomery County di Fonda Speedway.