Technical Strategy: Thermal Loading & The Undercut
The Cook Out 400 at Richmond Raceway represents a pure mechanical endurance test for the Next Gen car. Why? The 0.75-mile D-shaped oval features highly abrasive asphalt that generates extreme heat cycles in the right-rear tire. So What? Telemetry modeling projects a massive lap-time drop-off of over 1.2 seconds across a 30-lap green-flag stint. This creates a strategic necessity for the "Green-Flag Undercut," where crew chiefs will pit 3-5 laps earlier than rivals to leverage fresh Goodyear traction against the "dirty air" struggles of those on worn rubber.
- Goodyear Specification Match: Teams are running the exact radial tire setup utilized at Martinsville Speedway in March and North Wilkesboro Speedway last month. So What? This provides crew chiefs like Chris Gayle and Tyler Allen with a deep historical data set to predict long-run pressure bleed-offs, effectively bypassing "experimental" setups in practice.
- Tire Allotment: 11 total sets (9 new, 1 transfer from qualifying, 1 for practice). So What? This scarcity requires precise conservation during Stage 2 to ensure multiple fresh options are available for late-race restarts.
Official Entry List: 37 Teams Guaranteed
| No. | Driver | Team / Organization | Manufacturer | Crew Chief |
|---|---|---|---|---|
| 1 | Ross Chastain | Trackhouse Racing | Chevrolet | Brandon McSwain |
| 2 | Austin Cindric | Team Penske | Ford | Brian Wilson |
| 3 | Austin Dillon | Richard Childress Racing | Chevrolet | Richard Boswell II |
| 4 | Noah Gragson | Front Row Motorsports | Ford | Grant Hutchens |
| 5 | Kyle Larson | Hendrick Motorsports | Chevrolet | Cliff Daniels |
| 6 | Brad Keselowski | RFK Racing | Ford | Jeremy Bullins |
| 7 | Daniel Suárez | Spire Motorsports | Chevrolet | Ryan Sparks |
| 9 | Chase Elliott | Hendrick Motorsports | Chevrolet | Alan Gustafson |
| 10 | Ty Dillon | Kaulig Racing | Chevrolet | Andrew Dickeson |
| 11 | Denny Hamlin | Joe Gibbs Racing | Toyota | Chris Gayle |
| 12 | Ryan Blaney | Team Penske | Ford | Jonathan Hassler |
| 16 | AJ Allmendinger | Kaulig Racing | Chevrolet | Trent Owens |
| 17 | Chris Buescher | RFK Racing | Ford | Scott Graves |
| 19 | Chase Briscoe | Joe Gibbs Racing | Toyota | James Small |
| 20 | Christopher Bell | Joe Gibbs Racing | Toyota | Adam Stevens |
| 21 | Josh Berry | Wood Brothers Racing | Ford | Miles Stanley |
| 22 | Joey Logano | Team Penske | Ford | Paul Wolfe |
| 23 | Bubba Wallace | 23XI Racing | Toyota | Charles Denike |
| 24 | William Byron | Hendrick Motorsports | Chevrolet | Ryan Fugle |
| 133 | Austin Hill | Richard Childress Racing | Chevrolet | Andy Street |
| 34 | Todd Gilliland | Front Row Motorsports | Ford | Chris Lawson |
| 35 | Riley Herbst | 23XI Racing | Toyota | Davin Restivo |
| 38 | Zane Smith | Front Row Motorsports | Ford | Ryan Bergenty |
| 41 | Cole Custer | Haas Factory Team | Chevrolet | Aaron Kramer |
| 42 | John Hunter Nemechek | LEGACY MOTOR CLUB | Toyota | Travis Mack |
| 43 | Erik Jones | LEGACY MOTOR CLUB | Toyota | Justin Alexander |
| 45 | Tyler Reddick | 23XI Racing | Toyota | Billy Scott |
| 47 | Ricky Stenhouse Jr | Hyak Motorsports | Chevrolet | Michael Kelley |
| 48 | Alex Bowman | Hendrick Motorsports | Chevrolet | Blake Harris |
| 51 | Cody Ware | Rick Ware Racing | Chevrolet | Billy Plourde |
| 54 | Ty Gibbs | Joe Gibbs Racing | Toyota | Tyler Allen |
| 60 | Ryan Preece | RFK Racing | Ford | Derrick Finley |
| 66 | Josh Bilicki | Garage 66 | Ford | Carl Long |
| 71 | Michael McDowell | Spire Motorsports | Chevrolet | Travis Peterson |
| 77 | Carson Hocevar | Spire Motorsports | Chevrolet | Luke Lambert |
| 88 | Connor Zilisch | Trackhouse Racing | Chevrolet | Randall Burnett |
| 97 | Shane Van Gisbergen | Trackhouse Racing | Chevrolet | Stephen Doran |