NASCAR Top-10 Power Rankings: Dover

"Kyle Larson just had too much of a lead," Truex said. "I knew I couldn't catch him, so I felt like there was really no point in extending myself trying to catch him. It was a case of 'too much cushion for the pushin.''

NASCAR Top-10 Power Rankings: Charlotte

Martin Truex Jr. finished seventh at Charlotte and heads to Round 2 in second, five points behind Kyle Busch.

NASCAR Top-10 Power Rankings: Richmond

Martin Truex Jr. passed Kyle Busch for the lead on Lap 26 and won the Federated Auto Parts 400, his second consecutive win.

NASCAR Top-10 Power Rankings: Las Vegas

Martin Truex won Stage 2 at Las Vegas and later passed Kevin Harvick for the lead with 20 laps to go. Truex then eased to victory and secured his place in the next round of the playoffs.

NASCAR Top-10 Power Rankings: Indianapolis

Kevin Harvick started on the pole and led all but 42 laps on his way to capturing his second Brickyard 400 triumph.

NASCAR Top-10 Power Rankings: Darlington

Kyle Busch: An engine change sent Busch to the rear at the start, but he steadily climbed forward, ultimately falling short of catching Joe Gibbs Racing teammate Erik Jones, who secured his first win of the year.

NASCAR Top-10 Power Rankings: Bristol

Denny Hamlin started on the pole at Bristol and overcame a number of impediments, including a loose wheel, contact with Jimmie Johnson, and falling a lap down at one point.

NASCAR Top-10 Power Rankings: Watkins Glen

Chase Elliott started on the pole and won the Go Bowling At The Glen, earning his second consecutive win at Watkins Glen.

NASCAR Top-10 Power Rankings: New Hampshire

Kyle Busch started second in the Foxwoods Resort Casino 301 and finished eighth, despite a brush with the wall in the final stage.

NASCAR Top-10 Power Rankings: Kentucky

Kurt Busch made a move from third on the final restart at Kentucky, and held off younger brother Kyle to win his first race of the season.