NASCAR Xfinity Series Countdown
Countdown to Sonoma and the next races on the NASCAR Xfinity Series 2025 season calendar.
4Days
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Jul 1220:30 UTC11Days
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Jul 1920:30 UTC18Days
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Jul 2620:30 UTC25Days
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Aug 220:30 UTC32Days
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Aug 919:00 UTC46Days
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Aug 2223:30 UTC54Days
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Aug 3023:30 UTC61Days
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Sep 623:30 UTC67Days
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Sep 1223:30 UTC81Days
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Sep 2720:00 UTC88Days
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Oct 420:00 UTC96Days
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Oct 1123:30 UTC102Days
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Oct 1820:00 UTC110Days
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Oct 2523:30 UTC117Days
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Nov 123:30 UTCThe NASCAR Xfinity Series is a stock car racing series organized by the National Association for Stock Car Auto Racing (NASCAR). It is considered as the second-highest level of professional stock car racing in the United States. Races are typically held on the same weekends as the NASCAR Cup Series and are driven on a mix of oval and road course tracks. The series features drivers competing in specially built race cars that are similar to those used in the Cup Series, but with less horsepower and downforce.