Terrible's SCORE Primm 300 was an off-road race that took place yearly in Primm, Nevada in September. The Primm 300 was part of a series of races that included the Baja 1000, Baja 500 and San Felipe 250. The event had various types of vehicle classes such as stock VW, production vehicles, buggies, trucks, and custom fabricated race vehicles. The race consisted of 4 loops on a 69-mile course on the east side of Interstate 15 near the Nevada-California state line. The main pits and start/finish area were just north of Buffalo Bill's. Due to environmental concerns chasing is not allowed, pits were permitted only in designated locations, spectator access is limited but available.
| Cars & Trucks | |||
|---|---|---|---|
| Year | Drivers | Vehicle | Class |
| 1996 | Robby Gordon, Orange, Calif. | Ford F-150 | TT |
| 1997 | Curt LeDuc, Cherry Valley, Calif. | Jeep Grand Cherokee | TT |
| 1998 | Ed and Tim Herbst, Las Vegas | Ford F-150 | TT |
| 1999 | Troy Herbst, Las Vegas | Smithbuilt Ford | 1 |
| 2000 | Steve Sourapas, Rancho Santa Fe, Calif. | Jimco Chevy | 1 |
| 2001 | Troy Herbst, Las Vegas | Smithbuilt Ford | 1 |
| 2002 | Mike Julson, Santee, Calif. - Bob Lofton, Westmorland, Calif. | Jimco Chevy | 1 |
| 2003 | Tim Herbst/Ed Herbst, Las Vegas | Ford F-150 | TT |
| 2004 | Alan Pflueger, Honolulu | Chevrolet Silverado | TT |
| 2005 | Brian Collins, Las Vegas - Larry Ragland, Cave Creek, Ariz. | Chevrolet Silverado | TT |
| 2006 | Bob Shepard, Phoenix | Chevrolet Silverado | TT |
| 2007 | Garron Cadiente, Mesa, Ariz. | Ford F-150 | TT |
| 2008 | Roger Norman, Reno, Nev. - Larry Roeseler, Irvine, Calif. | Ford F-150 | TT |
| 2009 | Robby Gordon, Charlotte, N.C. | Chevrolet CK1500 | TT |
| 2010 | Jesse Jones, Litchfield Park, Ariz. | Chevrolet Silverado | TT |