Exhibit 99.1 Wynn Resorts, Limited Reports Second Quarter 2025 Results LAS VEGAS, August 7, 2025 — Wynn Resorts, Limited (NASDAQ: WYNN) ("Wynn Resorts" or the "Company") today reported financial results for the second quarter ended June 30, 2025. Adjusted Property EBITDAR was $552.4 million for the second quarter of 2025, a decrease of$19.3 million compared to Adjusted Property EBITDAR of $571.7 million for the second quarter of 2024. For the second quarter of 2025, Adjusted Property EBITDAR decreased$27. ...