The NASCAR Cup Series Playoffs Championship 4 field is cemented after William Byron‘s walkoff win on Sunday at Martinsville Speedway.
Both Byron and Ryan Blaney were the class of the field over the 500-lap elimination race. The two playoff drivers needed to win in order to keep their title hopes alive and shared a tightly contested battle for the lead with fewer than 40 laps to go at “The Paperclip,” staying within a second of each other during the final run to the checkered flag.
RELATED: Unofficial results | At-track photos
Kyle Larson clinched the final spot in the title-deciding round by seven points over Christopher Bell. Larson qualified ahead of Bell, and the two searched everywhere on the track to outpoint each other and advance.
Both Denny Hamlin and Chase Briscoe clinched Championship 4 spots by winning earlier in the semifinal round, and despite having engine issues at Martinsville, they will fight for the Bill France Cup next Sunday at Phoenix Raceway (3 p.m. ET, NBC, Peacock, HBO Max, MRN Radio, SiriusXM NASCAR Radio). Hamlin scored his sixth win of the season earlier this round, which also counted as a milestone 60th career Cup Series win at Las Vegas Motor Speedway. Fellow Joe Gibbs Racing driver Briscoe punched his ticket by winning a week later at Talladega Superspeedway in overtime.
Team Penske‘s Joey Logano and Hendrick Motorsports‘ Chase Elliott were also eliminated.
Below is the list of drivers for the Championship 4, ordered by reset points.
NASCAR Cup Series Playoffs Championship 4 field
1. Chase Briscoe, No. 19 Joe Gibbs Racing Toyota
2. Denny Hamlin, No. 11 Joe Gibbs Racing Toyota
3. William Byron, No. 24 Hendrick Motorsports Chevrolet
4. Kyle Larson, No. 5 Hendrick Motorsports Chevrolet
With the Cup Series title field now set, we have a full picture of who is racing for a championship crown in the season finale. Here are the other two Championship 4 fields.
2025 NASCAR Xfinity Series Championship 4
Race: Saturday, 7:30 p.m. ET (The CW, MRN Radio, SiriusXM NASCAR Radio)
1. Connor Zilisch, No. 88 JR Motorsports Chevrolet
2. Justin Allgaier, No. 7 JR Motorsports Chevrolet
3. Jesse Love, No. 2 Richard Childress Racing Chevrolet
4. Justin Allgaier, No. 1 JR Motorsports Chevrolet
2025 NASCAR Craftsman Truck Series Championship 4
Race: Friday, 7:30 p.m. ET (FS1, MRN Radio, NASCAR Racing Network Radio)
1. Corey Heim, No. 11 Tricon Garage Toyota
2. Kaden Honeycutt, No. 52 Halmar Friesen Racing Toyota
3. Ty Majeski, No. 98 ThorSport Racing Ford
4. Tyler Ankrum, No. 18 McAnally-Hilgemann Racing Chevrolet
This story will be updated.
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