1978 Lucas Oil AMA Pro Motocross Championship
Lake Whitney Cycle Ranch - 500MX Results
Lake Whitney Cycle Ranch
Lake Whitney, TX US 
May 28, 1978
500MX Results
| Rider | Hometown | Motos | Bike | |
|---|---|---|---|---|
| 1 | Danny Laporte | Yucca Valley, CA  | 1 - 1 | Suzuki |
| 2 | Tommy Croft | San Diego, CA | 6 - 2 | Honda |
| 3 | Rick Burgett | Sandy, OR | 8 - 3 | Yamaha |
| 4 | Rex Staten | Fontana, CA | 4 - 6 | Yamaha |
| 5 | Steve Stackable | Austin, TX | 9 - 4 | Kawasaki |
| 6 | Mickey Boone | Winston Salem, NC | 7 - 5 | Suzuki |
| 7 | Darrell Shultz | Orangevale, CA | 5 - 9 | Suzuki |
| 8 |  Marty Smith | San Diego, CA | 2 - 15 | Honda |
| 9 | Gary Semics | Lisbon, OH | 12 - 8 | Can-am |
| 10 | Mike Bell | Lakewood, CA | 3 | Yamaha |
| 11 | Pat Moroney | Newburgh, NY | 13 - 12 | Suzuki |
| 12 | Denny Swartz | Reno, OH | 15 - 11 | Maico |
| 13 | Terry Clark | Lake Hughes, CA | - 7 | Maico |
| 14 | Ken Adams | West Grove, PA | 14 - 14 | Maico |
| 15 | Frank Stacy | Cheektowaga, NY | - 10 | KTM |
| 16 | Tony Summey | Forest City, NC | 10 | Yamaha |
| 17 | Roger Brown | New Braunfels, TX | 11 | |
| 18 | Bobby Picard | Fort Worth, TX | 16 - 17 | Maico |
| 19 | Mickey Kessler | Farmingdale, NJ | - 13 | Yamaha |
| 20 | Tim Riddle | Fort Worth, TX | - 16 | Maico |
| 21 | Dan Waller | Truckee, CA | 19 - 19 | Maico |
| 22 | John Calathes | Winter Park, FL | 17 | Maico |
| 23 | Randall Tarter | Euless, TX | - 18 | KTM |
| 24 | Gary Pustelak | Girard, PA | 18 | Maico |
| 25 | Frank Gallo | Macon, GA | 20 - 20 | KTM |
