Tony Stewart has undergone a fourth surgery on the leg he broke last year during a sprint car race in Iowa.
MotoGP leader Marc Marquez edged Honda teammate Dani Pedrosa to set a record pole position time at the Aragon Grand Prix on Saturday.
Shirley Muldowney faced a firestorm of opposition when she broke into the NHRA ranks, but through dogged determination, she won three series championships and changed the face of racing forever.
Lewis Hamilton broke Mercedes teammate Nico Rosberg's recent stranglehold on pole position by qualifying ahead of the championship leader at the Italian Grand Prix on Saturday.
Kyle Larson set a track record of 183.438 mph to win his first career Sprint Cup pole Friday at Pocono Raceway.
Tony Stewart was back in a sprint car on Friday night, the same series he raced in when he broke two bones in his right leg.
Brad Keselowski won't soon forget an eventful Saturday night in which the same right hand that held the winner's trophy was soon bloodied and bandaged after he broke a champagne bottle celebrating.
Robert Hight broke New England Dragway's Funny Car time record with a 3.988-second pass Friday night in qualifying for the Auto-Plus NHRA New England Nationals.
John Force broke Heartland Park Topeka's Funny Car time and speed records Friday in rain-shortened qualifying for the NHRA Kansas Nationals.
Lewis Hamilton continued Mercedes' dominant start to the season by capturing pole position at the rainy Chinese Grand Prix on Saturday; his third pole in four races this season.
Lewis Hamilton broke his drought at Formula One's Malaysian Grand Prix and led a one-two finish for the Mercedes team on Sunday.
Denny Hamlin has set a track record at Bristol Motor Speedway with his pole-winning run Friday in knockout qualifying.
Tony Stewart is 20 pounds lighter and has a titanium rod in his surgically repaired right leg.
The countdown clock for Tony Stewart's return to racing is no longer at months, weeks or even days.
Dale Earnhardt Jr. set a record Thursday with his 11th consecutive win as NASCAR's most popular driver.
Pole-sitter Kyle Busch dominated from start to finish, leading 195 of 200 laps en route to winning the NASCAR Nationwide Series Dollar General 300 at Chicagoland Speedway on Saturday.