The 2025 NASCAR In-Season Challenge presented by DraftKings Sportbook will be a multi-stage motorsport tournament that will be played during the 2025 NASCAR Cup Series season. It will be the first edition of the NASCAR In-Season Challenge.
32 full-time drivers in the series will participate in the tournament and races will also count toward the regular season and playoff standings as normal. Following the Cracker Barrel 400 at Nashville Superspeedway, 4 full-time drivers all failed to make the challenge: Shane van Gisbergen, Cole Custer, Riley Herbst, and Cody Ware.
Format.
The tournament will consist of eight regular season races that will be run during June and July. Before the bracket is set, there's a qualifying phase where all eligible drivers compete. The bottom four full-time drivers in the standings after this phase fail to qualify for the bracket. Then, the remaining 32 drivers get seeded into the bracket based on their performance in the three qualifying races. The last five races will be conducted in a single elimination bracket, with the first four rounds known as "Challenge Rounds". In each round, the driver in each matchup with the better finish advances, while the other is eliminated. This process will continue until only two drivers remain in the "Champions Round"; the driver with the better finish in that race will be the tournament champion and win a $1 million bonus.
Schedule.
Notes.
 Oval track
 Road course
 Street course
Broadcasting.
The seeding races were streamed on the new package to be shown on Amazon Prime Video. All tournament races will be shown on TNT and streamed on Max.