Matt Kenseth knows how to enjoy a birthday. Kenseth turned 41 on Sunday — and partied in Victory Lane after taking first at the NASCAR Sprint Cup Series race in Las Vegas. Kenseth is just the third NASCAR driver to win on his birthday, joining Cale Yarborough — who did it twice — and Kyle Busch.

Matt Kenseth celebrates his Kobalt Tools 400 win with a burn out at Las Vegas Motor Speedway. It's his third victory at the track and his 25th career victory.

Members of Matt Kenseth's team celebrate the win for the No. 20 Dollar General Toyota. It was just Kenseth's third start for Joe Gibbs Racing — he left Roush Fenway Racing in the offseason.

... Wave it wide and high. Matt Kenseth races past the checkered flag, picking up his first win of the season. Kenseth took the lead away from Kasey Kahne out of a late restart and fended off Kahne's Chevrolet over the final laps. Kenseth also won in Vegas in 2003 and '04.

Kyle Busch and his No. 18 M&M's Toyota, leads a group of cars on his hometown track in Las Vegas. Busch finished fourth and led 27 laps.

Members of Clint Bowyer's crew handle their duties for the No. 15 5-Hour Energy Toyota during a pit stop at Las Vegas Motor Speedway. Bowyer finished 27th.

Cars fly by the green flag for a restart during the Kobalt Tools 400. The race took 2 hours, 44 minutes and 16 seconds. There were five caution flags for 25 laps and there were 22 lead changes among eight drivers.

Kyle Busch, driver of the No. 18 M&M's Toyota, races Greg Biffle, driver of the No. 16 American Red Cross 3M Ford, during the NASCAR Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway on Sunday.

Brad Keselowski, driver of the No. 2 Miller Lite Ford, leads a group of cars during the NASCAR Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway on Sunday.

Danica Patrick, driver of the No. 10 GoDaddy Racing Chevrolet, leads a group of cars during the NASCAR Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway on Sunday.

Kasey Kahne, driver of the No. 5 Farmers Insurance Chevrolet, heads around the turn at the NASCAR Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway on Sunday.

Brad Keselowski (2) and Clint Bowyer (15) lead the field to the green to start the Sprint Cup Kobalt Tools 400 at Las Vegas Motor Speedway on Sunday.

Brittany Berndt and Ashly Fahlstrom, new social media managers for Michael Waltrip Racing, pose for a photo before the NASCAR Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway on Sunday.

Joe Piete, a pit crew member for Ryan Newman takes a nap on rows of tires along pit road before the NASCAR Sprint Cup Series race.

Sam Hornish Jr. celebrates in Victory Lane after winning the Nationwide Series Sam's Town 300 at Las Vegas Motor Speedway on Saturday. Hornish survived two restarts in the final 15 laps.

Sam Hornish Jr. is somewhere in the plume of celebratory smoke after tossing the checkered flag after winning the Nationwide Sam's Town 300.

Cars race past the green flag for a restart during the Sam's Town 300 on Saturday.

Kyle Larson (left), in the No. 32 Clear Men Shampoo Chevrolet, and Trevor Bayne, in the No. 6 World Financial Group Ford, scrape up against the wall during the NASCAR Nationwide Series Sam's Town 300 at Las Vegas Motor Speedway on Saturday. Unlike at Daytona, Larson -- and Bayne -- sustained minor damage.

Sam Hornish Jr. celebrates with a burnout of the No. 12 Wurth Ford after winning during the Nationwide Series Sam's Town 300 at Las Vegas Motor Speedway on Saturday.

The winner gets to burn out, and Sam Hornish Jr. does his thing after Saturday's Nationwide Series win in Las Vegas.

Robert Richardson Jr., driver of the No. 23 North Texas Pipe/Golden Gate Casino Chevrolet, gets turned around after an incident during Saturday's Nationwide race.

Sam Hornish Jr. celebrates in Victory Lane on Saturday at Las Vegas Motor Speedway.

The field streaks past the green flag to start the NASCAR Nationwide Series Sam's Town 300 at Las Vegas Motor Speedway on Saturday.

Brian Vickers, driver of the No. 20 Dollar General Toyota, leads the field through a turn during Saturday's Nationwide Series Sam's Town 300 at Las Vegas Motor Speedway.

Las Vegas Motor Speedway is loaded with fans at the start of Saturday's Nationwide Series Sam's Town 300.

Marcos Ambrose, driver of the No. 9 Stanley Ford, drives through the garage area during practice on Saturday for Sunday's NASCAR Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway.

Danica Patrick, driver of the No. 10 GoDaddy Racing Chevrolet, sits in her car in the garage area during practice for Sunday's Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway.

NASCAR fans watch Sprint Cup practice from the top of their RV on Saturday.

Danica Patrick tests out her No. 10 Chevy during practice in Las Vegas.

Greg Biffle works his No. 16 Ford around the track on Saturday.

Mike Bliss didn't even have a chance to make the Sprint Cup race when qualifying was canceled on Friday due to rain. Then, on Saturday, his weekend got worse when he wrecked in practice.

A pit crew member walks along a row of team trucks outside the Neon Garage during a rain delay at the Las Vegas Motor Speedway on Friday. Qualifying for the Kobalt 400 NASCAR Sprint Cup Series race was canceled because of the rain.

Fans look at the No. 48 Lowe's/Kobalt Tools Chevrolet of Daytona 500 winner Jimmie Johnson at Las Vegas.

Pit crew members for Mike Bliss roll his Sprint Cup Series car out of the garage during a rain delay at Las Vegas Motor Speedway. Qualifying was canceled because of the rain, forcing Bliss to miss the race.

A general view of Las Vegas Motor Speedway as track drying continued after a rain shower delayed practice for the Kobalt Tools 400 at Las Vegas Motor Speedway. NASCAR ended up canceling practice and qualifying for the Cup teams on Friday.

NASCAR Sprint Cup cars are covered at Las Vegas Motor Speedway on Friday. After an opening day of testing on Thursday, NASCAR was unable to get the Cup drivers on the track on Friday as rain first delayed, then canceled, practice and qualifying at the track.

Ricky Stenhouse Jr.'s car sits in the garage area at Las Vegas on Friday. After a day of testing, the Cup drivers were idle all day Friday.

A track security guard walks along pit road during a rain delay before scheduled practice for the NASCAR Nationwide and Sprint Cup Series at Las Vegas. Sprint Cup activities were canceled later in the day on Friday.

Kyle Busch takes laps during the NASCAR Sprint Cup test session at Las Vegas Motor Speedway on Thursday.

Brad Keselowski, 2012 NASCAR Sprint Cup champion, texts during the test session at Vegas on Thursday.

Danica Patrick takes a quiet moment and checks out her car during testing at Las Vegas on Thursday.

The United States Air Force Thunderbirds performs a fly-by during the national anthem before the NASCAR Sprint Cup Series auto race, Sunday, March 10, 2013 in Las Vegas.