Johnnie Parsons won the Phoenix 100 AAA Championship Race on the 1 Mile Dirt Oval Arizona State Fairgrounds in Phoenix, Arizona. Henry Banks finished second followed by Jimmy Davies, Neal Carter and Joe James.
Len Thrall won the ARDC Midget race at the Island Gardens (1/10c), West Hempstead, NY.
A.J. Foyt won the USAC Midget race at the Orange Show Speedway (1/4d), San Bernardino, CA.
Lee Ann Roberts Breedlove , wife of land speed record-holder Craig Breedlove, became the first female driver to exceed 300 mph when she sped to 308.50 mph in the Spirit of America - Sonic 1 vehicle over the Bonneville Salt Flats in Utah. The Sonic 1 was a four-wheel vehicle powered by a J79 jet engine. A few hours after Lee Ann jet-powered across the one-mile course, Craig Breedlove shattered his own record from the previous year when he reached 555.49 mph in the Spirit of America.
Bobby Unser won the Bobby Ball Memorial 150 USAC Championship Race on the 1 Mile Paved Oval Arizona State Fairgrounds in Phoenix, Arizona. Mike Mosley finished second followed by Mario Andretti, Al Unser and Johnny Rutherford.
Ollie Silva won the Supermodified race over Fred Ede, Gary Patterson, Leroy VanConett and DeWayne Woodward at the All American Speedway, Roseville,CA.
Bobby Allen won the Super Sprint Car race at the Bridgeport Speedway, Bridgeport, NJ.
Leigh Earnshaw won the ARDC Midget race over Jim Hettinger, Hank Rogers, Jr and Buck Buckley at the Bridgeport Speedway, Bridgeport, NJ.
Newt White won the NAMAR Midget race over Rich Vogler at the Winchester Speedway, Winchester,IN.
Bob East won the USAC Sprint Car race over Chuck Gurney, Ron Shuman, Duke Cook and Jimmy Oskie at the Ascot Park Speedway, Gardena,CA.
Neil Bonnett won the NASCAR Winston Cup Dixie 500 over Dale Earnhardt at the Atlanta Motor Speedway, Hampton, GA.
Sammy Swindell and Ron Shuman both won the Sprint Car feature races at the Devil's Bowl Speedway, Dallas,TX.
Steve Kinser won the Gary Patterson Classic preliminary Super Sprint Car race at the Baylands Raceway Park , Fremont,CA. Doug Wolfgang was second followed by Chuck Gurney, Rich Vogler and Brad Doty.
Sammy Swindell won the Super Sprint Car race over Bobby Davis Jr, Dave Blaney, Danny Smith and Doug Wolfgang at the Devil's Bowl Speedway, Dallas,TX.
Dale Earnhardt won the NASCAR Winston Cup Checker 500 over Ken Schrader at the Phoenix International Raceway, Phoenix, AZ.
Joe Nemechek won the NASCAR Winston Cup Pop Secret Microwave Popcorn 400 over Kenny Wallace at the North Carolina Speedway, Rockingham, NC.
Jimmie Johnson won the NASCAR NEXTEL Cup Dickies 500 over Matt Kenseth at the Texas Motor Speedway, Fort Worth, TX.