A look at who has momentum and who has lost it entering the season finale in Miami.

Will the results of this race match how the Championship 4 will finish Sunday on NBC?

NASCAR America: Capatilzing on opportunities wins championships

Richard Petty: 'The better (David Pearson) was, the better I had to be to compete with him.'

Harvick and Busch are co-favorites to win the championship according to Las Vegas bookmakers.

With a ninth-place finish Sunday at ISM Raceway, William Byron clinched the Cup Series' Rookie of the Year Award.

Kyle Busch's crew chief Adam Stevens says now that his team will have to take a more aggressive approach to win it all in Miami.

Only Joey Logano stands in the way of Kyle Busch, Kevin Harvick or Martin Truex Jr. from winning their second NASCAR championship.

NASCAR Hall of Famer and former crew chief Leonard Wood describes the impact that the late David Pearson had on his life.

Richard Petty gives his thoughts on the passing of fellow NASCAR legend David Pearson.

NASCAR America looks back on the legendary career of David Pearson, who died Monday at 83.

Denny Hamlin's incident with Kurt Busch at Phoenix collected Chase Elliott, all but ending Elliott's title hopes.

Looks ahead to Miami and back on the career of David Pearson.

NASCAR rules suspension to Kevin Harvick's crew chief and car chief will end when the checkered flag waves Sunday night.

A look at who is entered in Cup, Xfinity and Trucks this weekend.

Would it have been best for Kyle Busch to let Aric Almirola lead and win Phoenix to bump Kevin Harvick out of the title race?

Christopher Bell will race for the Xfinity championship because he did not let the pressure overwhelm him at Phoenix.

Kevin Harvick's team is switching its rear tire changer with teammate Aric Almirola's team.

Suspended from the track, Rodney Childers used that extra time focused on preparing Kevin Harvick's Miami car.

32 years after he ran his last race at Michigan in 1986, no one had a bad word for David Pearson.

David Pearson's 105 career Cup victories are second only to Richard Petty.

Dale Jarrett: 'You don't have to believe all that we are telling you. Just look at the numbers.'

Marty Snyder catches up with Cole Custer and asks him if he believes he is the favorite to win the NASCAR Xfinity Series title.

Tony Gibson reveals that it was an "extremely tough" weekend watching Kevin Harvick qualifying for the Championship 4 but seeing Kurt Busch get eliminated.

Christopher Bell joins Marty Snyder to analyze his win at Phoenix and to assess his chances to win the NASCAR Xfinity Series championship.

Christopher Bell faced a must-win situation on Saturday at ISM Raceway, and that's exactly what he did to clinch a spot in the Xfinity Championship 4.

Kurt Busch finished 32nd at Phoenix, which doomed his hopes of advancing to the Championship 4, but he received some words of wisdom from Tony Stewart.

Rodney Childers describes what it was like to not be at the track when Kevin Harvick clinched a spot in the Championship 4 and what preparations are like before Homestead-Miami.

NASCAR America discusses whether the collection of Kyle Busch, Kevin Harvick, Martin Truex Jr., and Joey Logano comprises the best Championship 4 ever.

Kyle Busch won in Phoenix, but could have allowed Aric Almirola to win instead to eliminate Kevin Harvick from the Championship 4.

Carolyn Manno, Dale Jarrett, Jeff Burton and Steve Letarte recap the last playoff elimination weekend.

Legacies will be shaped Sunday in Miami as NASCAR's champion will be crowned on NBC.

The final NASCAR race of the season will crown a championship this Sunday at Homestead-Miami on NBC.

Tony Stewart shared his side of his conversation with Kurt Busch after Busch wrecked Sunday at Phoenix.

The Xfinity title will be decided between Christopher Bell, Daniel Hemric, Tyler Reddick and Cole Custer.

Cole Whitt ends his NASCAR career after 242 starts across all three national series.

The playoff field has been whittled down to the Championship 4, which has three drivers returning from 2017.

The Championship 4 field is the strongest since the format began in 2014.

Denny Hamlin said of contact with Kurt Busch: 'I hate it for him. Trust me I was rooting for him.'

Look back at the top moments from the final NASCAR Cup playoff race of the season, including Kyle Busch's win and the car troubles and crashes that knocked several playoff contenders.

William Byron has won four consecutive Rookie of the Year awards since 2015.

Kyle Busch: 'Talk is cheap.' Still, the drivers had plenty to say at the end of the elimination race at Phoenix.

Kyle Busch's win was his second at ISM Raceway and his first since his rookie season.

William Byron talks about his 9th place finish at Phoenix and his newly-minted NASCAR Cup Rookie of the Year title.

And then there were four. Joey Logano, Kyle Busch, Martin Truex Jr. and Kevin Harvick battle for the championship.

Chase Elliott was eliminated from Championship 4 contention, and reflected on key takeaways from this season.

Kyle Busch will compete in the Championship 4 with Kevin Harvick, Martin Truex Jr. and Joey Logano.

Martin Truex Jr. talks about starting out rough at Phoenix and ending the day with a Championship 4 spot, racing on Veterans Day and more.

Kyle Busch talks about his big win at Phoenix, remembers Veterans Day and looks ahead to next week's Championship 4 race at Homestead.

Aric Almirola's playfof run may be over, but he says he's proud of the way he and his race team have performed in their first year of working together.