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NASCAR Xfinity Series at Auto Club Speedway

NASCAR Xfinity Series race

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionApr 29, 2026
Entity authorityQ1608283 ↗
Source-derived summary

Stock car races in the then-NASCAR Xfinity Series were held at Auto Club Speedway in Fontana, California from 1997 to 2023. The race was held as a 150 lap, 300 mile (480 km) race.

A second race at the track was also held during the fall as support to the Cup fall race from 2004 until the track lost its second Cup date after 2010.

No races have been held since 2023, as the track is currently undergoing demolition of the 2-mile oval.

Past winners

Notes

2008 I: Race postponed from Saturday night to Monday afternoon due to rain.

2009 II, 2010 I and 2022: Race extended due to NASCAR overtime.

2021: Race canceled and moved to the Daytona road course due to the COVID-19 pandemic.

2023: Race postponed from Saturday afternoon to Sunday night due to rain.

Editorial summary

Begin with the source’s own compact description: “NASCAR Xfinity Series at Auto Club Speedway” is nASCAR Xfinity Series race. The dossier treats that line as a proposition to test through NASCAR, Xfinity and Series, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1997, 2023, 2004, 2010—that can be checked directly. The linked authority record independently contributes the date 1997. For this dossier, NASCAR, Xfinity and Series is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “nASCAR Xfinity Series race” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Apr 29, 2026. The linked authority identifier is Q1608283. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1997, 2023, 2004 and 2010.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “NASCAR Xfinity Series at Auto Club Speedway”, its source revision and the description used here.
  2. Expand the search: follow NASCAR Xfinity Series at Auto Club Speedway primary sources, NASCAR Xfinity Series at Auto Club Speedway archive and NASCAR research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “NASCAR Xfinity Series at Auto Club Speedway”?
  2. Which institution is responsible for the underlying evidence?
  3. Which cited source is closest to the event, object or claim?
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Source & attribution

This entry incorporates text from “NASCAR Xfinity Series at Auto Club Speedway” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.