NASCAR announced a sweeping revision to its 2026 O'Reilly Auto Parts Series rulebook that will reshape how full‑time Cup drivers compete in the lower‑tier division.
Under the new framework, drivers who are full‑time members of the premier Cup Series may now enter up to ten races in the O'Reilly Series, a modest increase from the previous five‑race cap, but they remain barred from the series' playoff events and the regular‑season finale.
The only Cup driver who will be eligible to run the full schedule is Austin Hill, who is stepping in for the late Kyle Busch at his team.
Twelve Cup drivers took part in at least one O'Reilly race this year, and seven of those outings resulted in victories for Cup competitors, underscoring the depth of talent crossing series boundaries.
Notable Performances
Kyle Larson captured double victories at Las Vegas Motor Speedway and Texas Motor Speedway, while Shane van Gisbergen won at the Circuit of the Americas and Sonoma Raceway. Connor Zilisch added wins at Bristol Motor Speedway and Watkins Glen International, and Ross Chastain stood out as the sole Cup driver to meet the ten‑race minimum, capping his season with a victory at Charlotte Motor Speedway.
Eligibility and Restrictions
Full‑time Cup competitors are prohibited from participating in the playoff segment and the final race of the regular season, a rule designed to preserve competitive balance and protect the integrity of the series' postseason.
The championship‑deciding Winn‑Dixie 250 will take place at Daytona International Speedway on August 28, 2026, and will be broadcast live on the CW Network at 7:30 p.m. ET.
Broadcast and Schedule Details
Fans can tune in to the August 28 finale on the CW Network, where the network will air the race live, ensuring broad exposure for the series as it tests the new driver eligibility model.
Series organizers have confirmed that the schedule will exclude any race that a Cup driver is eligible to contest, with the sole exception of the Truck Series event at Richmond.
The revised regulations signal NASCAR's willingness to experiment with cross‑series participation while maintaining clear boundaries between the Cup level and its developmental divisions. How the changes will affect driver development and fan engagement remains to be seen, but the upcoming Daytona finale will provide the first real‑world gauge of the new paradigm.