Seattle Post-Intelligencer · Mar 11, 2021
Seattle Mariners to allow 9,000 fans on Opening Day, first time since 2019
John Stanton, Seattle Mariners chairman and managing partner, said the Mariners had been working with state and local health officials for several months to get ready for the first fans at games since 2019. This included developing several safety measures, including cashless transactions, streamlined security lines, digital ticketing, sanitation protocols, and a requirement to wear masks at all times unless actively eating or drinking.
King County and Washington approved the plan to put fans back in the seats of T-Mobile Park.