AP photo by Luis M. Alvarez / Joe Gibbs Racing driver Martin Truex Jr. signs autographs as he enters the garage at Florida's Homestead-Miami Speedway on Saturday, the day before the NASCAR Cup Series season finale.

HOMESTEAD, Fla. — Kyle Busch, weary from the hype surrounding NASCAR's championship weekend, just wanted to end his media obligations and return his focus to the Cup Series season finale.

But there was one final question from the back of the room: UFC fighter Colby Covington had crashed the event and wanted a tip on winning a title bout. Busch gave the mixed martial artist colorful advice for a championship smackdown, basically telling Covington not to care about your opponent, put personal feelings aside and go kick his rear end.

It couldn't be more fitting for stock-car racing's heavyweight bout, a four-driver showdown Sunday at Homestead-Miami Speedway that pits Busch against two of his Joe Gibbs Racing teammates — Denny Hamlin and Martin Truex Jr. — and Stewart-Haas Racing's Kevin Harvick. The Las Vegas oddsmakers have basically posted the winner-take-all race as a dead heat with no clear favorite.

It is next to impossible to determine which of the four has the best car — the JGR three are in Toyota Camrys, with Harvick in a Ford Mustang — because rain disrupted the weekend schedule and NASCAR canceled Saturday qualifying to give the drivers a lone 50-minute practice session. The JGR cars rolled out 1-2-3 on the timing sheet, with Truex apparently the best on long runs and Hamlin holding steady on shorter sprints.

Less clear was Harvick, ninth on the timing sheet but showing zero concerns.

"We're good," he said.

This championship field is nearly identical to last year, with Busch, Harvick and Truex, all former champions, again accounting for three of the final four contenders. Hamlin has not been eligible for the title in the final race since 2014 and is coming off a winless 2018 season, but he has all the momentum headed into Sunday after last week's statement victory at ISM Raceway near Phoenix.

He's the only driver in the final four without a title, yet he seemed most at ease after Saturday's practice.

Harvick was locked in on his race car and kept his answers short. Busch wore dark sunglasses on the long march from the garage to the stage inside the media center and wondered what could possibly be left to discuss. Truex was even-keeled, eager to get into the JGR debrief and put together his plan for Sunday.

"You've got to keep doing what got you here, right?" Truex said. "It's a big race, but the best chance for one of us to win is to do the same thing we do every week as a team, as group."

Hamlin was the loosest of the four with the busiest weekend schedule. He turns 39 on Monday and has always used this championship weekend as a birthday party, and his celebrity entourage was scheduled to begin arriving late Saturday. Among his friends expected to be in attendance is Michael Jordan, and Hamlin doesn't want to stray from his usual routine.

"Trying to have fun, enjoy everything that surrounds us," he said.

He joked about qualifying being canceled because it gave him the first pit stall — a position team owner Joe Gibbs had him forfeit last year to Busch because Busch was racing for the title and Hamlin was not.

"It's that good karma for giving up that pit box last year," Hamlin said with a smile. "It all comes back around."

Although there is no clear betting favorite, Hamlin seems to setting himself up for a celebratory weekend. He had the blessing of rookie crew chief Chris Gabehart, who has been credited for keeping Hamlin on a short leash all year and leading him to a Daytona 500 win and five other victories.

"I've told him to go enjoy himself," Gabehart said. "To compete at this level, the very, very top, against the best is something that you shouldn't take for granted and enjoy the moment. You've got to stop and take a little bit of extra time and just really enjoy what it is that we're doing here. I fully anticipate Denny will do that tonight and have fun. He's responsible about it. This isn't the Denny of 10 years ago.

"He knows what he can and can't do maybe a whole lot better than he used to. It's business as usual for us."

The finalists had little on-track preparation time to get a feel for the aerodynamics package introduced this year by NASCAR, which is being used at Homestead for the first time. The lower horsepower, higher downforce setup has had mixed results at various tracks, but Homestead has traditionally produced some of the best races of the season. The champion has had to win the race every year since this format was introduced in 2014, and nearly every one of those races was decided after late cautions.

Homestead is moving on the 2020 schedule to March, ending its streak of 18 years as the season finale — but there will be one final championship bash in victory lane.

That much is certain. Who will be celebrating isn't.