MOTOR SPORTS SCHEDULE

THE RACE: Nextel All-Star Challenge (nonpoints race), Lowe’s Motor Speedway, Concord, N.C.

WHEN: Nextel Open, 4:30 p.m. Saturday, Speed (Digital 329); All-Star Challenge, 6 p.m. Saturday, Speed, KKLZ-FM (96.3)

MORE TV: Qualifying, 3 p.m. today, Speed

FAST FACTS: The All-Star Challenge includes the top two drivers from Saturday’s Nextel Open (a 40-lap race split into two 20-lap segments), a driver selected by fans and 19 automatic entries. The guaranteed spots in the Challenge are for the past decade’s All-Star race winners, active Cup season champions and race winners from last season and the first 11 Cup races this year. … The All-Star race is 80 laps with four 20-lap segments.

2006 All-STAR WINNER: Jimmie Johnson

NEXT RACE: May 27, Concord, N.C.

NASCAR BUSCH

No racing this weekend

NEXT RACE: May 26, Concord, N.C.

NASCAR TRUCKS

THE RACE: Quaker Steak and Lube 200, Lowe’s Motor Speedway, Concord, N.C.

WHEN: 6 p.m. today, Speed (Digital 329)

MORE TV: Qualifying, 1:35 p.m. today, Speed

2006 WINNER: Kyle Busch

NEXT RACE: May 26, Concord, N.C.

LAS VEGAS: Sept. 23

NHRA DRAG RACING

No racing this weekend

FAST FACT: The event scheduled for this weekend in Bristol, Tenn., was moved to July 6-8 because of problems with the surface of the recently paved dragstrip at Bristol Motor Speedway.

NEXT RACE: June 3, Topeka, Kan.

LAS VEGAS: Oct. 26-29

INDY RACING LEAGUE

THE RACE: Indy 500 qualifying

WHEN: 9 a.m.-3 p.m. Saturday and Sunday

TV: Saturday, 1 p.m.-3:30 p.m., ESPN2 (Cable 31); Sunday, 10 a.m.-noon, ABC (Channel 13) and 2 p.m.-4:30 p.m., ESPN2

FAST FACT: Helio Castroneves won the pole Sunday for next week’s Indianapolis 500. … The last 11 of 33 starting spots for the 500 will be determined Saturday and Sunday.

NEXT RACE: May 27, Indianapolis

CHAMP CAR WORLD SERIES

No racing this weekend

NEXT RACE: June 10, Portland, Ore.

FORMULA ONE

No racing this weekend

NEXT RACE: May 27, Monte Carlo, Monaco

LOCAL

TODAY: Midnight Mayhem (street-legal drags), 8 p.m.-1 a.m., Las Vegas Motor Speedway dragstrip

SATURDAY: NHRA Jr. Dragsters (youth racing), 9 a.m.-1 p.m., LVMS dragstrip

Jerry’s Nugget Championship Drag Racing Series (bracket racing, high school drags), 5-11:30 p.m., LVMS dragstrip

INFO: Las Vegas Motor Speedway (LVMS.com, 644-4444), LVMS Bullring (632-8422), LVMS dragstrip (632-8459)

TIMES AND EVENTS SUBJECT TO CHANGE