| | 1988 | Speedway Grand Nationals |
| | Oakland Valley Raceway | Cuddebackville, NY |
| Finish | Driver | Hometown | Kart | Engine |
| | 100cc Open |
| 1 | | Bill Nellis | Palatine Bridge, NY | Proline | TKM |
| 2 | | Ralph Burris, Jr. | Cypress, TX |
| 3 | | Gary Arthur | Middletown, OH | Mike Strieker | Komet |
| 4 | | Mark Hollenbeck | Candor, NY | Wolf | DAP |
| 5 | | Ralph Woodard | Omaha, NE | Buller | TKM |
| 6 | | James Scott Adair | Sante Fe, TX |
| 7 | | Cliff Casterline | Athens, PA |
| 8 | | Gary Woodbury | Unioon City, OH |
| 9 | | Fred Muller | Pine Bush, NY |
| 10 | | Brian Dench | Oakland, NJ |
| | 100cc Super Stock Heavy |
| 1 | | Todd Cooney | Des Moines, IA | Buller | TKM |
| 2 | | Jamie Meracle | E. Greenbush, NY | Proline | TKM |
| 3 | | Bob Hellwig | E. Greenbush, NY | Proline | TKM |
| 4 | | Jeff Johnson | Schenectady, NY | Buller | TKM |
| 5 | | James Flach | Ravena, NY |
| 6 | | Ralph Burris, Jr. | Cypress, TX |
| 7 | | Bruce Divis | Lincoln, NE |
| 8 | | Dave Davies | Schenectady, NY |
| 9 | | Russell Brown | Mannsville, NY |
| 10 | | Jordan Hermansader | Rancho Palos Verdes, CA |
| | 100cc Super Stock Light |
| 1 | | Bill Nellis | Palatine Bridge, NY | Proline | TKM |
| 2 | | Todd Cooney | Des Moines, IA | Buller | TKM |
| 3 | | Jamie Meracle | E. Greenbush, NY | Proline | TKM |
| 4 | | Ralph Woodard | Omaha, NE |
| 5 | | Ralph Burris, Jr. | Cypress, TX |
| 6 | | Jeff Johnson | Bettendorf, IA |
| 7 | | Miles Neal | Schenectady, NY |
| 8 | | Bruce Divis | Lincoln, NE |
| 9 | | James Scott Adair | Sante Fe, TX |
| 10 | | Jordan Hermansader | Rancho Palos Verdes, CA |
| | 150cc Open |
| 1 | | Tony Mormile | Amsterdam, NY | Proline | TKM |
| 2 | | Kenneth Pieniazek | Schenectady, NY | Olson | Komet |
| 3 | | Chuck Burgess | Huntington, WV | Sauder | Komet |
| 4 | | David Cooper | Findlay, OH | Cooper | Komet |
| 5 | | Mike Traver | Middletown, NY |
| 6 | | Louis Boughan | Lima, OH |
| 7 | | Ralph Woodard | Omaha, NE |
| 8 | | Frank Carpinello | Renss, NY |
| 9 | | Ralph Burris, Jr. | Cypress, TX |
| 10 | | Mike Ryck | Waverly, NY |
| | 200cc Stock |
| 1 | | Ralph Woodard | Omaha, NE | Buller | Yamaha |
| 2 | | Ruben Parr | Palmyra, NY | Emmick | Komet |
| 3 | | Ralph Burris, Jr. | Cypress, TX |
| 4 | | Eddie Rice | Des Moines, IA |
| 5 | | Terry Dalton | Bramalda, Ontario, Canada | Emmick | Yamaha |
| 6 | | Michael Zipay | Anchorage, AK |
| 7 | | Todd Parsons | Des Moines, IA |
| 8 | | Richard Applebee | Port Byron, NY |
| 9 | | Denny Rice | Des Moines, IA |
| 10 | | Patrick Thompson | Des Moines, IA |
| | Junior I |
| 1 | | Jamie Ferrell | Des Moines, IA | Margay | Yamaha |
| 2 | | Justin Waller | Traer, IA | Invader | Yamaha |
| 3 | | Jamie McMurray | Joplin, MO |
| 4 | | Gene Mangino, Jr. | Schenectady, NY | Olson | Yamaha |
| 5 | | Robbie Hass | Houston, TX |
| | Junior II |
| 1 | | Denise Myers | Des Moines, IA | Proline | Yamaha |
| 2 | | Mike Clausen | Bettandorf, IA | Proline | Yamaha |
| 3 | | Brad Bennett | Stanford, CT | Dominator | Yamaha |
| 4 | | Nicole Merando | Tecumseh, KS | CKS | Yamaha |
| 5 | | Tom Sabiel | Waldwick, NY | Laguna | Yamaha |
| 6 | | Mike Doty | Middletown, NY |
| 7 | | Daniel Meracle | E. Greenbush, NY |
| 8 | | Josh Walker | Newton, IA |
| | Senior Sportsman |
| 1 | | Jimmy Ball | Chariton, IA | Margay | Yamaha |
| 2 | | Larry Ball, Jr. | Altoona, IA | Margay | Yamaha |
| 3 | | Fred Weyrick | Wapello, IA |
| 4 | | Dave Burrell | Traer, IA | Olson | Yamaha |
| 5 | | J.R. Newton | Danbury, CT | Margay | Yamaha |
| 6 | | Bill Ferrell | Des Moines, IA |
| 7 | | Jordy Verstegh | Newton, IA |
| 8 | | Mike Schwarz | Davenport, IA |
| 9 | | Dave Davies | Schenectady, NY |
| 10 | | Jerry Nadeau | Danbury, CT |
| | Stock Heavy |
| 1 | | Bruce Divis | Lincoln, NE | Buller | Yamaha |
| 2 | | Chad Waller | Traer, IA | Buller | Yamaha |
| 3 | | Larry Ball, Jr. | Altoona, IA | Margay | TKM |
| 4 | | Jordan Hermansader | Rancho Palos Verdes, CA | Dominator | TKM |
| 5 | | Mark Finnell | Rock Port, MO |
| 6 | | Jamie Meracle | E. Greenbush, NY |
| 7 | | Alan Davidson | Islip Terrace, NY |
| 8 | | Ken Moore | Middlesex, NJ |
| 9 | | Mike Duffus | Newton, IA |
| 10 | | Robert Pulte | Newton, IA |
| | Stock Light |
| 1 | | Todd Cooney | Des Moines, IA | Buller | TKM |
| 2 | | Ralph Woodard | Omaha, NE | Buller | TKM |
| 3 | | David Podmijersky | Valatie, NY | Coyote | TKM |
| 4 | | Mike Duffus | Newton, IA | Buller | TKM |
| 5 | | Alan Davidson | Islip Terrace, NY | Dominator | Yamaha |
| 6 | | Mark Finnell | Rock Port, MO |
| 7 | | Larry Ball | Altoona, IA |
| 8 | | Mark Laughren | Central City, IA |
| 9 | | Stephen Guattery | Farmington, NM |
| 10 | | Jamie Meracle | E. Greenbush, NY |
| | Yamaha KT100S |
| 1 | | Keith Still | Middletown, NY | Coyote | Yamaha |
| 2 | | Todd Cooney | Des Moines, IA | Buller | Yamaha |
| 3 | | Larry Ball | Altoona, IA | Margay | Yamaha |
| 4 | | Jeff Johnson | Schenectady, NY | Buller | Yamaha |
| 5 | | Kevin Clark | Newton, IA | Proline | Yamaha |
| 6 | | Russell Brown | Mannsville, NY |
| 7 | | Stephen Guattery | Farmington, NM |
| 8 | | Dave Davies | Schenectady, NY |
| 9 | | Ken Moore | Middlesex, NJ |
| 10 | | Mike Schwarz | Davenport, IA |