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O’Reilly Auto Parts Named Title Sponsor of NASCAR’s Second-Tier Series Starting in 2026

The multiyear agreement starts Jan. 1, 2026, leveraging The CW’s exclusive broadcasts and recent viewership gains.

Riley Herbst, driver of the #18 Monster Energy Toyota, leads the field during the NASCAR Xfinity Series O'Reilly Auto Parts 300 at Texas Motor Speedway on October 24, 2020 in Fort Worth, Texas.
Harrison Burton, driver of the #25 AirBox Ford, Christian Eckes, driver of the #16 Celsius Chevrolet, and Nick Sanchez, driver of the #48 Borchetta Bourbon Chevrolet, race during the NASCAR Xfinity Series Mission 200 at The Glen at Watkins Glen International on August 09, 2025 in Watkins Glen, New York.
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Overview

  • The NASCAR O’Reilly Auto Parts Series name takes effect on Jan. 1, 2026 under a multiyear pact confirmed by NASCAR and O’Reilly.
  • The CW remains the exclusive broadcaster with planned brand integrations, as viewership is up about 17% this season to roughly 1.1 million per race.
  • Comcast’s Xfinity ends its 11-year entitlement after 2025 but stays a premier partner and sponsors the “Xfinity Fastest Lap” award across NASCAR’s national series.
  • NASCAR used Klutch Sports Group to market the entitlement; financial terms were not disclosed, with prior reporting indicating targets around $10–$15 million annually.
  • NASCAR President Steve O’Donnell said rules limiting Cup drivers in lower series are under review, signaling potential future adjustments.