Here's a breakdown of this weekend's action in the world of motorsports. (All times ET)

Winston Cup

FAST FACTS
Event	UAW-DaimlerChrysler 400
Site	Las Vegas.
Schedule	Friday, qualifying (Fox Sports Net, 5 p.m.); Sunday, race (Fox, 3 p.m.)
Track	Las Vegas Motor Speedway (tri-oval 1.5 miles, 12 degrees banking in turns)
Distance	400 miles, 267 laps.

Last race: Matt Kenseth charged from fourth to first late in the race to win the Subway 400 at North Carolina Speedway.

	Drivers to Watch
	Check out a short list of drivers to keep an eye on this weekend at Las Vegas.

Last year: Jeff Gordon took the lead 20 laps from the end and drove away for an easy victory.

Fast Facts: Last week's race marked the debut of the new NASCAR rule that states only one engine is allowed for practice, qualifying and the race. Las Vegas Speedway's ovals are known to put more pressure on the 750-800 horsepower engines than the 1.017-mile North Carolina track. ... Kenseth's win last week was the second of his career and first in 60 races. ... Jeff Burton outraced brother Ward to the finish line in 1999. It was the first 1-2 finish by brothers since Terry Labonte beat Bobby in 1997 in Talladega, Ala. ... Only the inaugural race in 1998 was won from a top-10 starting position. No pole-sitters have won the race.

Next race: Atlanta 500, March 10, Hampton, Ga.

Busch

FAST FACTS
Event	Sam's Town 300
Site	Las Vegas.
Schedule	Friday, qualifying, 3:30 p.m.; Saturday, race (FX, 3:30 p.m.)
Track	Las Vegas Motor Speedway (tri-oval 1.5 miles, 12 degrees banking in turns)
Distance	300 miles, 200 laps.

Last race: With the last 68 of 197 laps run without a caution, Jason Keller pulled away from Greg Biffle to win the RBCTerm.com200 at North Carolina Speedway by 6.208 seconds.

Last year: Todd Bodine outraced Greg Biffle on a late restart to win the Sam's Town 300 in Las Vegas for his second straight Busch series victory. Bodine's victory ended a string of five straight Las Vegas wins -- in both the Busch and Winston Cup series -- by Roush Racing drivers Jeff Burton and Mark Martin.

Fast facts: Keller has six career wins and leads the Busch Series standings for the first time in his 256-race career. He finished second and third in the past two seasons. ... Dale Earnhardt Jr., who won the Busch season-opener, did not enter the RBCTerm.com200. He is expected to start Saturday. ... Winston Cup regulars, including Burton, Jimmy Spencer, Mike Wallace, Kenny Wallace, Jeff Green, Michael Waltrip and Joe Nemecheck, have entered the race. Green and Spencer are former Busch Series winners at Las Vegas. ... Burton is the only driver to sweep both races at Las Vegas, doing it in 2000. ... Green holds the race record of 114.153 mph in 1997. ... A qualifying record has been set in each of the first five years of the event.

Next race: DarlingtonRaceway.com 200, March 16, Darlington, S.C.

Formula One

FAST FACTS
Event	Australian Grand Prix
Site	Melbourne, Australia.
Schedule	Friday, qualifying (Speedvision, 9 p.m.); Saturday, race (Speedvision, 9:30 p.m)
Track	Albert Park Circuit (3.28 miles)
Distance	191.118 miles, 58 laps

Last event: Michael Schumacher won the Japan Grand Prix on Oct. 14 for his record-tying ninth victory of 2001. Only Nigel Mansell, in 1992, was able to win as many in a season.

	Drivers to Watch
	Check out a short list of drivers to keep an eye on this weekend in Australia.

Last year: Schumacher led from start to finish to win his fifth consecutive Formula One race. A track marshal was killed and 13 people were injured from debris that flew off Jacques Villeneuve's car when it became airborne and hit a catch fence.

Fast facts: This is the first race of the season. ... Of the 12 Australian drivers to have started their home grand prix, only Jack Brabham and Alan Jones have won the race. ... Damon Hill won from the pole in 1995 by a margin of over two laps, only the second time in grand prix history that has happened. ... Gerhard Berger, Damon Hill, Michael Schumacher and Ayrton Senna are the only drivers to win the race twice. ... Schumacher will be looking for a third straight victory on the Australian circuit and 54th career grand prix win. ... Eddie Irvine got for his first victory on the Formula One circuit in 1999. ... Albert Park was rebuilt for the start of the 1996 season.

Next event: Malaysian Grand Prix, March 17, Kuala Lumpur.

Indy Racing League

FAST FACTS
Event	Grand Prix of Miami
Site	Homestead, Fla.
Schedule	Friday, qualifying, 1:30 p.m.; Saturday, race (ABC, 1 p.m.)
Track	Homestead-Miami Speedway (oval 1.5 miles, 6 degrees banking in turns)
Distance	300 miles, 200 laps

Last event: Sam Hornish Jr. overtook Scott Sharp just a few feet from the finish line to cap his championship season with a win in the Chevy 500 on Oct. 6, in the closest 1-2-3 finish in IRL history.

	Drivers to Watch
	Check out a short list of drivers to keep an eye on this weekend at Homestead, Fla.

Last year: Hornish led the final 15 laps and held off Sarah Fisher to give Panther Racing its third consecutive IRL triumph.

Fast facts: This is the 20th anniversary of the race. ... Hornish was the only driver to finish every race last season. He won the 2001 championship on the strength of three wins and 11 top-five finishes in the 13-race season. ... Penske Racing will be making its debut as a full-time IRL competitor with drivers Gil de Ferran and Helio Castroneves. ... Fisher's second-place finish last year was the highest of any female driver in a major racing series, besting her third-place finish at Kentucky Speedway in 2000.

Next race: Bombardier/ATV Indy 200, March 17, Avondale, Ariz.

NHRA
Last event: Del Worsham denied John Force his 100th career victory by beating him in the Funny Car final at the Checker Schuck's Kragen Nationals in Chandler, Ariz. Tony Schumacher won the Top Fuel final over Larry Dixon and Bruce Allen topped Warren Johnson in the Pro Stock category.

Next race: Mac Tools Gatornationals, March 17, Gainesville, Fla.