This Day in Dolphins History: Aug 12, 1966 – Dolphins Play First Ever Home Game; Lose to KC 33-0 Posted by Mike Oliva | Aug 12, 2021 | Dolphins News | 0 This Day in Dolphins History: August 12, 1966 – The Miami Dolphins franchise played their first-ever home game. They lost to Kansas City 33-0 in week 2 of the preseason.