Martin Truex Jr fastest during first Las Vegas practice session

Martin Truex was 12/1 to win Kobalt 400 pole position.

Martin Truex Jr. ran only seven laps during Friday's first Kobalt 400 practice at Las Vegas Motor Speedway, but on his final lap laid posted the fastest speed at 193.500 mph during the 85 minute session. He was the only driver to post a speed over 193 mph and should be consider the favorite to win the pole during qualifying which is scheduled to begin at 7:30 pm ET tonight.

Brad Keselowski, the 2014 and 2016 Kobalt 400 winner, was second-fastest with a lap at 192.995 mph and he was followed by four-time Las Vegas winner Jimmie Johnson (192.988), Kyle Larson (192.719) and three-time Las Vegas winner Matt Kenseth (192.644) to round out the top-five fastest.

Kasey Kahne finished fourth last week at Atlanta and continued to show speed again this week with the sixth fastest lap (192.610) which was posted on the final of his 21 laps run. Kahne spent the first half of the session getting his race trim dialed in and posted the fastest 10-consecutive lap average of the session among four drivers that ran as many in a row.

Ryan Blaney grabbed the seventh fastest lap (192.239) with just a few minutes remaining in the session on his 17th and final lap turned. Last week's pole sitter and 2015 Las Vegas winner Kevin Harvick was eighth fastest (192.239) followed by Chase Elliott (192.164) and Denny Hamlin to close out the top-10.

Kyle Busch ran the most laps (27) of the session and posted the 14th fastest lap while in qualifying trim on his 25th lap.

There will be two final practices Saturday which will be the give a much better indication of how the cars will run on race day.

Practice 1 Speeds