KANSAS CITY, Kan. (AP) — At the season-opening Daytona 500, Joe Gibbs Racing proved it was unquestionably the fastest, from Denny Hamlin taking the checkered flag to its quartet of cars leading more than three-quarters of the race. It turned out to be a harbinger of things to come.

After watching Kyle Busch drive away from Kevin Harvick to win Saturday night's Sprint Cup race at Kansas Speedway, Gibbs drivers have won six times in the first 11 races. Everybody on the team has a win except Matt Kenseth, and the former series champion finished a season-best fourth at Kansas.

"The hardest thing in pro sports is to stay up there every week and right now it's been a thrill," Gibbs said after celebrating Busch's first Sprint Cup win at a track that's caused him so much trouble.

In fact, things have been so good for Gibbs that Martin Truex Junior, whose Furniture Row team has a technical alliance with JGR, may have been the fastest of anybody at Kansas. If it wasn't for a fluke tire-change issue, he might have been the one celebrating the end of his misfortune there.

That was just about the only lament Gibbs had Saturday night.