Rookie signal-caller Ryan Tannehill -- who failed to guide the Dolphins to a touchdown in his NFL debut last week -- this time fired his first career scoring strike en route to 200 yards.
The Texas A&M product went 18-of-30 through the air without an interception and also ran for a TD for Miami (1-1).
Brian Hartline led the Dolphins receivers with nine catches for 111 yards.
Carson Palmer amassed 373 aerial yards and a TD on 24-of-48 efficiency for the Raiders (0-2), who have dropped their first two games for the first time since 2007.
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