The United Rentals 300 runs as part of the NASCAR O'Reilly Auto Parts Series, formerly the Xfinity Series, ahead of the 2026 Daytona 500.
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NASCAR O'Reilly Auto Parts Series schedule 2026: Dates, times, TV channels, live streams, winners for every race
The former Xfinity Series has a new name but promises to bring the same thrills in 2026. Here's how to tune in to every race.
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