Operator
Good morning, ladies and gentlemen, and thank you for standing by. Welcome to the Wingstop Inc. Fiscal First Quarter 2021 Earnings Conference Call. Please note this conference is being recorded today, Wednesday, April 28, 2021. On the call, we have Charlie Morrison, Chairman and Chief Executive Officer; and Michael Skipworth, Executive Vice President and Chief Financial Officer. I would now like to turn the conference over to Michael. Please go ahead, sir.
Michael J. Skipworth --
Executive Vice President And Chief Financial Officer
Thank you, and welcome. Everyone should have access to our fiscal first quarter 2021 earnings release. A copy is posted under the Investor Relations tab on our website at ir.wingstop.com. Our discussion today includes forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to numerous risks and uncertainties that could cause our actual results to differ materially from what we currently expect. Our SEC filings describe various risks that could affect our future operating results and financial condition. We use certain non-GAAP financial measures that we believe can be useful in evaluating our performance. Presentation of such information should not be considered in isolation or as a substitute for results prepared in accordance with GAAP. Reconciliations to comparable GAAP measures are contained in our earnings release. Finally, we will discuss preliminary sales results for the first four weeks of the second fiscal quarter. We have not, of course, completed closing procedures for the second fiscal quarter, so preliminary sales results discussed today are subject to change pending finalization and actual results could differ materially. Lastly, for the Q&A session, we ask that you please each keep to one question and a follow-up to allow as many participants as possible to ask a question. With that, I would like to turn the call over to Charlie.