Kyle Busch Youngest Ever Winner

Busch won the race aged 20 years, four months and two days, beating the previous best set by Donald Thomas in 1952 when he won at Lakewood Speedway, Georgia.

Busch, the younger brother of reigning Nextel Cup Champion Kurt, is in his rookie season for Hendrick Motorsport after finishing second in the Busch Series last season.

The Las Vegas driver led 95 of the 250 laps and dominated the latter stages of the race but was also fortuitous with his pit strategy on his final stop.

While many expected leader Busch to stay out on track when a caution for debris was called with nine laps to go, he opted to head into the pits with the rest of the leading runners, headed by last week's Bristol winner, Matt Kenseth.

"The radio was telling me to stay out but I thought I run over something so I had to go in the pits," Busch said. "Then everyone else followed me and I thought - cool."

Busch then changed only two tyres because he had pulled up too close to the pitwall, Busch's crew deciding it would have taken too long to move the Chevrolet Monte Carlo back into a position to enable the left side tyres to be changed.

Busch led the pack out of the pits but what proved crucial was Kenseth losing several positions because he had opted to change all four tyres.

Busch pulled away at the restart and there were enough cars between him and Kenseth for him to survive another late race caution period for a five car incident involving Sterling Marlin, Scott Riggs, Robby Gordon, Scott Wimmer and Jeff Burton.

Kyle Busch was congratulated by his older brother Kurt, before he and owner Rick Hendrick declared that they would donate their share of their winnings to the relief effort for Hurricane Katrina.

Greg Biffle finished second, ahead of Busch's teammate Brian Vickers.

Carl Edwards finished fourth after a remarkable comeback drive. Edwards, who won the Busch race yesterday, spun on lap 47 while leading when he suffered a flat rear tyre but avoided hitting the wall.

Points leader Tony Stewart finished fifth ahead of Kasey Kahne, who pipped Kenseth for sixth at the end.

Result of Sony HD 500, California Speedway:

Pos  Driver              Make        Laps
 1.  Kyle Busch          Chevrolet   254
 2.  Greg Biffle         Ford        254
 3.  Brian Vickers       Chevrolet   254
 4.  Carl Edwards        Ford        254
 5.  Tony Stewart        Chevrolet   254
 6.  Kasey Kahne         Dodge       254
 7.  Matt Kenseth        Ford        254
 8.  Jamie McMurray      Dodge       254
 9.  Ricky Rudd          Ford        254
10.  Joe Nemechek        Chevrolet   254
11.  Mark Martin         Ford        254
12.  Kurt Busch          Ford        254
13.  Michael Waltrip     Chevrolet   254
14.  Kevin Harvick       Chevrolet   254
15.  Rusty Wallace       Dodge       254
16.  Jimmie Johnson      Chevrolet   254
17.  Elliott Sadler      Ford        254
18.  Ryan Newman         Dodge       254
19.  Sterling Marlin     Dodge       254
20.  Bobby Labonte       Chevrolet   254
21.  Jeff Gordon         Chevrolet   254
22.  Dave Blaney         Chevrolet   254
23.  Bobby Hamilton Jr   Chevrolet   254
24.  Dale Jarrett        Ford        254
25.  Jeff Green          Dodge       254
26.  Jeremy Mayfield     Dodge       254
27.  Mike Bliss          Chevrolet   254
28.  Tony Raines         Dodge       254
29.  Ken Schrader        Dodge       253
30.  Boris Said          Chevrolet   253
31.  Scott Wimmer        Dodge       250
32.  Casey Mears         Dodge       249
33.  Travis Kvapil       Dodge       249
34.  Robby Gordon        Chevrolet   248
35.  Jeff Burton         Chevrolet   248
36.  Scott Riggs         Chevrolet   246
37.  Mike Garvey         Ford        232
38.  Dale Earnhardt Jr   Chevrolet   211
39.  J.J. Yeley          Chevrolet   209
40.  Bill Elliott        Dodge       180
41.  Kyle Petty          Dodge       171
42.  Hermie Sadler       Dodge        87
43.  Stuart Kirby        Chevrolet    31