Exhibit 99.1 Red Robin Gourmet Burgers, Inc. Reports Results for the Fiscal Fourth Quarter and Fiscal Year Ended December 31, 2023 1.6% increase in fiscal 2023 comparable restaurant revenue $57.7 million improvement in net loss and a 33% increase in Adjusted EBITDA during fiscal 2023 Englewood, CO – February 28, 2024 – Red Robin Gourmet Burgers, Inc. (NASDAQ: RRGB) ("Red Robin" or the "Company"), a full-service restaurant chain serving an innovative selection of high-quality gourmet burgers in a family-frie ...