Joey Terdoslavich and Phil Gosselin added two-run doubles, and Austin Meadows' RBI double capped the rally.
Catching hopeful Jesus Sucre got the Rays on the scoreboard with a solo home run off Brett McKinney with two outs in the eighth.
The Pirates arrived ready on Saturday, as evident by their heads-up play in the first after Kevin Kiermaier dropped a one-out single into right and tried to stretch it into a double. Terdoslavich fielded the ball and threw a strike to shortstop Jordy Mercer, nailing Kiermaier, who arrived head-first.