NASCAR In-Season Challenge
| Founder | Denny Hamlin |
|---|---|
| First season | 2023 (as concept) 2025 (officially) |
| Organising body | NASCAR |
| Most recent champions | No. 54 Ty Gibbs Joe Gibbs Racing (2025) |
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| 2025 NASCAR In-Season Challenge | |
The NASCAR In-Season Challenge (initially titled the NASCAR In-Season Tournament) is a single-elimination tournament that is conducted among drivers in the NASCAR Cup Series. It made its debut during the 2025 season.
The In-Season Challenge will be the second $1 million bonus event in the Cup Series, joining the NASCAR All-Star Race.