| | 1979 | Sprint Grand Nationals |
| | 103rd Street Sports Complex | Jacksonville, FL |
| Finish | Driver | Hometown | Kart | Engine |
| | 100cc McCulloch Amateur Heavy |
| 1 | | Todd Barron | Hollywood, FL | Invader | Mc91 |
| 2 | | R. Rolling | Orlando, FL | Hartman | Mac |
| 3 | | J. Ervien | St. Petersburg, FL | Margay | Mc91B1 |
| 4 | | John Tipps | Santee, CA | Margay | Mac |
| 5 | | J. Boswell | Miramar, FL | Invader | Mc91 |
| | 100cc McCulloch Amateur Light |
| 1 | | Todd Barron | Hollywood, FL | Invader | Mc91 |
| 2 | | George Ito | Ventura, CA | Emmick | Mc91 |
| 3 | | Phil Harris | Dallas, TX | Margay | Mc91B |
| 4 | | Kel McIntee | W. Los Angeles, CA | Hartman | Mc91 |
| 5 | | Mike Ensign | Tulsa, OK | Invader | Mc92 |
| | 100cc Stock Heavy |
| 1 | | Tommy Nolting | Jacksonville, FL | Magnum | Yamaha |
| 2 | | W.T. Higgenbotham | Jacksonville, FL | Emmick | Yamaha |
| 3 | | R. Smith | Jacksonville, FL | Margay | Yamaha |
| 4 | | Mike Manning | Northridge, CA | Emmick | Parilla |
| 5 | | M. Batson | Richland, WA | Invader | Yamaha |
| | 100cc Stock Light |
| 1 | | Ron Emmick | Sacramento, CA | Emmick | Parilla |
| 2 | | V.P. Burris | Manhattan Beach, CA | Burco | Komet |
| 3 | | Charlie Bellavia | Miami, FL | Invader | Yamaha |
| 4 | | Greg Mayr | Greenfield, WI | Magnum | Yamaha |
| 5 | | L. Castillo | Mexico |
| | 125cc McCulloch |
| 1 | | Scott Sellergren | Park Ridge, IL | Magnum |
| 2 | | Larry Fox | Dewey, IL | Emmick | Mc101 |
| 3 | | George Ito | Ventura, CA | Invader | Mc101 |
| 4 | | J. Boswell | Miramar, FL | Hartman | Mc101 |
| 5 | | Chuck West | Altamonte Springs, FL | Mc101 |
| | 80cc McCulloch Jr. |
| 1 | | Joey Rodriguez | Tampa, FL | Invader | Yamaha |
| 2 | | Derek Burris | Fountain Valley, CA | Invader | Yamaha |
| 3 | | Sal Noto, Jr, | Ozone Park, NY | Invader | Yamaha |
| 4 | | Tim Koscher | Elkhart, IN | Twister | Yamaha |
| 5 | | Matt Reed | Bakersfield, CA | Magnum | Yamaha |
| | 80cc McCulloch Sr. |
| 1 | | Dave Armstrong | Jacksonville, FL | Margay | Yamaha |
| 2 | | J. Nolting | Jacksonville, FL | Margay | Yamaha |
| 3 | | Martin Rebac | Michigan City, MI | Burton | Yamaha |
| 4 | | J. De Rhodes | Laughlin AFB | Margay | Yamaha |
| 5 | | C. Suggs | Jacksonville, FL | Margay | Yamaha |
| | Expert I |
| 1 | | Victor Gonzales | Miami, FL | Bug | Parilla |
| 2 | | Harlan Willis | Oxnard, CA | Hartman | Yamaha |
| 3 | | Howard Combee | Ontario, CA | Yamaha | Yamaha |
| 4 | | Sam Rodriguez | Tampa, FL | Invader | Yamaha |
| 5 | | Scott Pruett | Roseville, CA | Margay | Komet |
| | Expert II |
| 1 | | Rocky Buff | Pico Rivera, CA | Bug BW | Komet K78 WC |
| 2 | | Scott Pruett | Roseville, CA | Margay | Komet |
| 3 | | Scott Sellergren | Parkridge, IL | Margay | Mc101 |
| 4 | | Chip Pendleton | Racine, WI | Emmick | Komet |
| 5 | | Howard Combee | Ontario, CA | Yamaha | Yamaha |
| | Expert III |
| 1 | | Ron Emmick | Sacramento, CA | Emmick | Parilla |
| 2 | | Chip Pendleton | Racine, WI | Emmick | Komet |
| 3 | | B. Alloro | Garland, TX | Hartman | Corsair |
| 4 | | J. Bond | Wannatosa, WI | Margay | Komet |
| 5 | | Dave Bradley | Tulsa, OK | Hartman | Corsair |
| | Expert IV |
| 1 | | George Ito | Ventura, CA | Emmick | BM-130 |
| 2 | | B. Kalfas | Tallahassee, FL | Margay | BM-130 |
| 3 | | J. Harrell | Valdosta, GA | Margay | BM-130 |
| 4 | | S. Kriner | Hollywood, FL | Margay | Mc91B |
| 5 | | D. Needleman | Crystal River, FL | Margay | Mc101 |
| | Junior I |
| 1 | | Mike De Jenzano | Miami, FL | Invader | Komet |
| 2 | | Robby Flock | Industry, CA | Hartman | Komet |
| 3 | | Kurt Burris | Fountain Valley, CA | Margay | Yamaha |
| 4 | | Rod Tull | Ontario, CA | Hartman | Komet |
| 5 | | A. Griffin | Jacksonville, FL | Invader | Komet |
| | Junior II |
| 1 | | Kurt Burris | Fountain Valley, CA | Margay | Yamaha |
| 2 | | Rod Tull | Ontario, CA | Hartman | Komet |
| 3 | | Billy Boulware | Rock Hill, SC | Margay | Mc101 |
| 4 | | Robby Flock | Industry, CA | Hartman | Komet |
| 5 | | Bill Ross, Jr. | Yakima, WA | Emmick | Komet |